SCIENCE DYNAMICS CORPORATION

                          SECURITIES PURCHASE AGREEMENT

                                February 11, 2005










                                Table of Contents
                                                                           Page

1.       Agreement to Sell and Purchase.......................................1

2.       Fees and Warrant.....................................................1

3.       Closing, Delivery and Payment........................................2
         3.1        Closing...................................................2
         3.2        Delivery..................................................2

4.       Representations and Warranties of the Company........................3
         4.1        Organization, Good Standing and Qualification.............3
         4.2        Subsidiaries..............................................3
         4.3        Capitalization; Voting Rights.............................4
         4.4        Authorization; Binding Obligations........................4
         4.5        Liabilities...............................................5
         4.6        Agreements; Action........................................5
         4.7        Obligations to Related Parties............................6
         4.8        Changes...................................................6
         4.9        Title to Properties and Assets; Liens, Etc................8
         4.10       Intellectual Property.....................................8
         4.11       Compliance with Other Instruments.........................9
         4.12       Litigation................................................9
         4.13       Tax Returns and Payments..................................9
         4.14       Employees................................................10
         4.15       Registration Rights and Voting Rights....................10
         4.16       Compliance with Laws; Permits............................11
         4.17       Environmental and Safety Laws............................11
         4.18       Valid Offering...........................................11
         4.19       Full Disclosure..........................................11
         4.20       Insurance................................................12
         4.21       SEC Reports..............................................12
         4.22       Listing..................................................12
         4.23       No Integrated Offering...................................12
         4.24       Stop Transfer............................................13
         4.25       Dilution.  The Company  specifically  acknowledges  that its
                    obligation   to  issue  the  shares  of  Common  Stock  upon
                    conversion  of the  Note  and  exercise  of the  Warrant  is
                    binding upon the Company and  enforceable  regardless of the
                    dilution such  issuance may have on the ownership  interests
                    of other shareholders of the Company.................... 13

5.       Representations and Warranties of the Purchaser.....................13
         5.1        No Shorting..............................................13
         5.2        Requisite Power and Authority............................14
         5.3        Investment Representations...............................14
         5.4        Purchaser Bears Economic Risk............................14
         5.5        Acquisition for Own Account..............................14
         5.6        Purchaser Can Protect Its Interest.......................14
         5.7        Accredited Investor......................................15
         5.8        Legends..................................................15

                                       i

6.       Covenants of the Company............................................16
         6.1        Stop-Orders..............................................16
         6.2        Trading..................................................16
         6.3        Market Regulations.......................................16
         6.4        Reporting Requirements...................................16
         6.5        Use of Funds.............................................16
         6.6        Access to Facilities.....................................17
         6.7        Taxes....................................................17
         6.8        Insurance................................................17
         6.9        Intellectual Property....................................18
         6.10       Properties...............................................18
         6.11       Confidentiality..........................................19
         6.12       Required Approvals.......................................19
         6.13       Reissuance of Securities.................................20
         6.14       Opinion..................................................20

7.       Covenants of the Purchaser..........................................21
         7.1        Confidentiality..........................................21
         7.2        Non-Public Information...................................21
         7.3        Limitation on Acquisition of Common Stock of the Company.21

8.       Covenants of the Company and Purchaser Regarding Indemnification....22
         8.1        Company Indemnification..................................22
         8.2        Purchaser's Indemnification..............................22
         8.3        SMEI Acquisition.........................................23
         8.4        Termination of Inactive Subsidiaries.....................23

9.       Conversion of Convertible Note......................................23
         9.1        Mechanics of Conversion..................................23

10.      Registration Rights.................................................24
         10.1       Registration Rights Granted..............................24
         10.2       Offering Restrictions....................................25

11.      Miscellaneous.......................................................25
         11.1       Governing Law............................................25
         11.2       Survival.................................................25
         11.3       Successors...............................................25
         11.4       Entire Agreement.........................................26
         11.5       Severability.............................................26
         11.6       Amendment and Waiver.....................................26
         11.7       Delays or Omissions......................................26
         11.8       Notices..................................................26
         11.9       Attorneys' Fees..........................................27
         11.10      Titles and Subtitles.....................................27
         11.11      Facsimile Signatures; Counterparts.......................28
         11.12      Broker's Fees............................................28
         11.13      Construction.............................................28
                                       ii


                                                  LIST OF EXHIBITS
- --------------------------------------------------------------------------------
Form of Convertible Term Note.........................................Exhibit A
Form of Warrant.......................................................Exhibit B
Form of Opinion.......................................................Exhibit C
Form of Escrow Agreement..............................................Exhibit D


                                      iii




                          SECURITIES PURCHASE AGREEMENT

     THIS SECURITIES  PURCHASE  AGREEMENT (this "Agreement") is made and entered
into as of February 11, 2005, by and between  SCIENCE  DYNAMICS  CORPORATION,  a
Delaware  corporation  (the  "Company"),  and Laurus Master Fund, Ltd., a Cayman
Islands company (the "Purchaser").

                                    RECITALS

     WHEREAS,  the  Company  has  authorized  the  sale  to the  Purchaser  of a
Convertible  Term Note in the aggregate  principal amount of Two Million Dollars
($2,000,000)  (as  amended,  modified  or  supplemented  from time to time,  the
"Note"),  which Note is convertible  into shares of the Company's  common stock,
$0.01 par value per share (the "Common  Stock") at an initial  fixed  conversion
price of $0.10 per share of Common Stock ("Fixed Conversion Price");

     WHEREAS, the Company wishes to issue a warrant to the Purchaser to purchase
up to 6,000,000  shares of the Company's  Common Stock (subject to adjustment as
set forth therein) in connection with Purchaser's purchase of the Note;

     WHEREAS, Purchaser desires to purchase the Note and the Warrant (as defined
in Section 2) on the terms and conditions set forth herein; and

     WHEREAS,  the  Company  desires  to issue and sell the Note and  Warrant to
Purchaser on the terms and conditions set forth herein.

                                    AGREEMENT

     NOW,  THEREFORE,  in consideration of the foregoing recitals and the mutual
promises,  representations,  warranties and covenants  hereinafter set forth and
for other good and valuable consideration,  the receipt and sufficiency of which
are hereby acknowledged, the parties hereto agree as follows:

     1 Agreement to Sell and Purchase.

     Pursuant to the terms and  conditions set forth in this  Agreement,  on the
Closing  Date (as  defined in  Section  3),  the  Company  agrees to sell to the
Purchaser,  and the Purchaser hereby agrees to purchase from the Company, a Note
in the aggregate  principal amount of $2,000,000  convertible in accordance with
the terms thereof into shares of the Company's  Common Stock in accordance  with
the terms of the Note and this Agreement. The Note purchased on the Closing Date
shall be known  as the  "Offering."  A form of the  Note is  annexed  hereto  as
Exhibit A. The Note will mature on the  Maturity  Date (as defined in the Note).
Collectively,  the Note and Warrant and Common Stock  issuable in payment of the
Note,  upon conversion of the Note and upon exercise of the Warrant are referred
to as the "Securities."

     2. Fees and Warrant. On the Closing Date:




          (a)       The  Company  will  issue and  deliver  to the  Purchaser  a
                    Warrant to purchase up to  6,000,000  shares of Common Stock
                    in  connection  with the Offering  (as amended,  modified or
                    supplemented  from time to time, the "Warrant")  pursuant to
                    Section 1  hereof.  The  Warrant  must be  delivered  on the
                    Closing Date. A form of Warrant is annexed hereto as Exhibit
                    B.   All   the   representations,   covenants,   warranties,
                    undertakings, and indemnification,  and other rights made or
                    granted  to or  for  the  benefit  of the  Purchaser  by the
                    Company  are hereby  also made and granted in respect of the
                    Warrant and shares of the  Company's  Common Stock  issuable
                    upon exercise of the Warrant (the "Warrant Shares").

          (b)       Subject  to the terms of Section  2(d)  below,  the  Company
                    shall pay to Laurus Capital Management,  LLC, the manager of
                    the Purchaser, a closing payment in an amount equal to three
                    and nine tenths percent  (3.90%) of the aggregate  principal
                    amount of the Note.  The foregoing fee is referred to herein
                    as the "Closing Payment."

          (c)       The Company shall reimburse the Purchaser for its reasonable
                    expenses  (including  legal fees and  expenses)  incurred in
                    connection  with the  preparation  and  negotiation  of this
                    Agreement  and  the  Related   Agreements  (as   hereinafter
                    defined),  and  expenses  incurred  in  connection  with the
                    Purchaser's  due  diligence  review of the  Company  and its
                    Subsidiaries  (as  defined in Section  4.2) and all  related
                    matters. Amounts required to be paid under this Section 2(c)
                    will be paid on the Closing Date and shall be $27,500.00 for
                    such expenses referred to in this Section 2(c).

          (d)       The  Closing  Payment  and the  expenses  referred to in the
                    preceding clause (c) (net of deposits previously paid by the
                    Company) shall be paid at closing out of funds held pursuant
                    to  the  Escrow   Agreement   (as   defined   below)  and  a
                    disbursement letter (the "Disbursement Letter").

     3. Closing, Delivery and Payment.



          3.1 Closing.

          Subject  to the  terms  and  conditions  herein,  the  closing  of the
transactions  contemplated hereby (the "Closing"),  shall take place on the date
hereof,  at such time or place as the Company and Purchaser  may mutually  agree
(such date is hereinafter referred to as the "Closing Date").

          3.2 Delivery.

          Pursuant to the Escrow Agreement,  at the Closing on the Closing Date,
the Company will deliver to the  Purchaser,  among other  things,  a Note in the
form  attached  as Exhibit A  representing  the  aggregate  principal  amount of
$2,000,000


                                       2

and a  Warrant  in the  form  attached  as  Exhibit  B in the  Purchaser's  name
representing  6,000,000  Warrant  Shares and the  Purchaser  will deliver to the
Company, among other things, the amounts set forth in the Disbursement Letter by
certified funds or wire transfer.

     4. Representations and Warranties of the Company.

     The Company  hereby  represents  and  warrants to the  Purchaser as follows
(which  representations and warranties are supplemented by the Company's filings
under  the  Securities  Exchange  Act of 1934  made  prior  to the  date of this
Agreement (collectively,  the "Exchange Act Filings"), copies of which have been
provided to the Purchaser):

          4.1 Organization, Good Standing and Qualification.

          Each of the Company  and each of its  Subsidiaries  is a  corporation,
partnership or limited  liability  company,  as the case may be, duly organized,
validly  existing and in good  standing  under the laws of its  jurisdiction  of
organization. Each of the Company and each of its Subsidiaries has the corporate
power and authority to own and operate its properties and assets, to execute and
deliver  (i) this  Agreement,  (ii) the Note and the  Warrant  to be  issued  in
connection with this Agreement,  (iii) the Master Security Agreement dated as of
the date hereof between the Company, certain Subsidiaries of the Company and the
Purchaser (as amended,  modified or supplemented  from time to time, the "Master
Security  Agreement"),  (iv) the Registration  Rights Agreement  relating to the
Securities dated as of the date hereof between the Company and the Purchaser (as
amended,  modified or supplemented from time to time, the  "Registration  Rights
Agreement"),  (v) the  Subsidiary  Guaranty  dated as of the date hereof made by
certain  Subsidiaries of the Company (as amended,  modified or supplemented from
time to time, the "Subsidiary Guaranty"),  (vi) the Stock Pledge Agreement dated
as of the date hereof among the Company, certain Subsidiaries of the Company and
the  Purchaser  (as amended,  modified or  supplemented  from time to time,  the
"Stock Pledge Agreement"), (vii) the Funds Escrow Agreement dated as of the date
hereof  among the  Company,  the  Purchaser  and the escrow  agent  referred  to
therein,  substantially in the form of Exhibit D hereto (as amended, modified or
supplemented  from time to time,  the "Escrow  Agreement")  and (viii) all other
agreements  related to this  Agreement  and the Note and referred to herein (the
preceding clauses (ii) through (viii), collectively,  the "Related Agreements"),
to issue  and  sell  the Note and the  shares  of  Common  Stock  issuable  upon
conversion  of the Note (the "Note  Shares"),  to issue and sell the Warrant and
the Warrant  Shares,  and to carry out the  provisions of this Agreement and the
Related Agreements and to carry on its business as presently conducted.  Each of
the Company and each of its  Subsidiaries is duly qualified and is authorized to
do business and is in good  standing as a foreign  corporation,  partnership  or
limited liability company, as the case may be, in all jurisdictions in which the
nature of its  activities  and of its  properties  (both owned and leased) makes
such qualification necessary, except for those jurisdictions in which failure to
do so has not, or could not reasonably be expected to have,  individually  or in
the aggregate, a material adverse effect on the business,  assets,  liabilities,
condition (financial or otherwise),  properties,  operations or prospects of the
Company and its  Subsidiaries,  taken  individually  and as a whole (a "Material
Adverse Effect").

          4.2 Subsidiaries.

                                      3


          Each direct and indirect  Subsidiary of the Company,  the direct owner
of such  Subsidiary  and its  percentage  ownership  thereof,  is set  forth  on
Schedule 4.2. For the purpose of this Agreement, a "Subsidiary" of any person or
entity  means (i) a  corporation  or other entity whose shares of stock or other
ownership  interests  having  ordinary  voting  power (other than stock or other
ownership  interests  having  such  power only by reason of the  happening  of a
contingency) to elect a majority of the directors of such corporation,  or other
persons or entities  performing similar functions for such person or entity, are
owned, directly or indirectly, by such person or entity or (ii) a corporation or
other entity in which such person or entity owns,  directly or indirectly,  more
than  50% of the  equity  interests  at  such  time.  For  the  purpose  of this
Agreement,  a "Non  Wholly-Owned  Subsidiary"  shall mean each Subsidiary of the
Company  whose  equity  interests  are not 100% owned by the  Company or another
Subsidiary of the Company.

          4.3 Capitalization; Voting Rights.

          (a)       The authorized capital stock of the Company,  as of the date
                    hereof consists of 210,000,000  shares, of which 200,000,000
                    are  shares of Common  Stock,  par  value  $0.01 per  share,
                    69,686,659  shares of which are issued and outstanding,  and
                    10,000,000  are shares of preferred  stock,  par value $0.01
                    per share of which 0 shares of  preferred  stock are  issued
                    and  outstanding.  The  authorized  capital  stock  of  each
                    Subsidiary of the Company is set forth on Schedule 4.3.

          (b)       Except as disclosed  on Schedule  4.3,  other than:  (i) the
                    shares  reserved  for  issuance  under the  Company's  stock
                    option plans;  and (ii) shares which may be granted pursuant
                    to this Agreement and the Related  Agreements,  there are no
                    outstanding options,  warrants, rights (including conversion
                    or preemptive rights and rights of first refusal),  proxy or
                    stockholder agreements, or arrangements or agreements of any
                    kind for the purchase or acquisition from the Company of any
                    of its  securities.  Except as  disclosed  on Schedule  4.3,
                    neither  the offer,  issuance  or sale of any of the Note or
                    the  Warrant,  or the  issuance of any of the Note Shares or
                    Warrant  Shares,  nor the  consummation  of any  transaction
                    contemplated  hereby will result in a change in the price or
                    number of any securities of the Company  outstanding,  under
                    anti-dilution  or other similar  provisions  contained in or
                    affecting any such securities.

          (c)       All issued and  outstanding  shares of the Company's  Common
                    Stock:  (i) have been duly authorized and validly issued and
                    are fully paid and  nonassessable;  and (ii) were  issued in
                    compliance  with  all  applicable  state  and  federal  laws
                    concerning the issuance of securities.

          (d)       The rights, preferences,  privileges and restrictions of the
                    shares of the  Common  Stock are as stated in the  Company's
                    Certificate  of  Incorporation  (the  "Charter").  The  Note
                    Shares and Warrant Shares have

                                       4

                    been duly and validly reserved for issuance.  When issued in
                    compliance  with the  provisions  of this  Agreement and the
                    Company's  Charter,  the Securities  will be validly issued,
                    fully paid and nonassessable,  and will be free of any liens
                    or encumbrances;  provided, however, that the Securities may
                    be subject to  restrictions  on transfer  under state and/or
                    federal  securities laws as set forth herein or as otherwise
                    required by such laws at the time a transfer is proposed.

          4.4 Authorization;

          Binding Obligations.  All corporate,  partnership or limited liability
company,  as the case may be,  action on the part of the Company and each of its
Subsidiaries (including the respective officers and directors) necessary for the
authorization of this Agreement and the Related  Agreements,  the performance of
all  obligations  of the Company and its  Subsidiaries  hereunder  and under the
other Related Agreements at the Closing and, the authorization,  sale,  issuance
and  delivery  of the Note and  Warrant has been taken or will be taken prior to
the  Closing.  This  Agreement  and the Related  Agreements,  when  executed and
delivered  and to the extent it is a party  thereto,  will be valid and  binding
obligations  of each of the  Company and each of its  Subsidiaries,  enforceable
against each such person in accordance with their terms, except:

          (a)       as   limited   by   applicable    bankruptcy,    insolvency,
                    reorganization,   moratorium   or  other   laws  of  general
                    application affecting enforcement of creditors' rights; and

                    (b)       general  principles  of equity that  restrict  the
                              availability of equitable or legal remedies.

The sale of the Note and the subsequent conversion of the Note into Note Shares
are not and will not be subject to any preemptive rights or rights of first
refusal that have not been properly waived or complied with. The issuance of the
Warrant and the subsequent exercise of the Warrant for Warrant Shares are not
and will not be subject to any preemptive rights or rights of first refusal that
have not been properly waived or complied with.

          4.5 Liabilities.

          Neither  the Company nor any of its  Subsidiaries  has any  contingent
liabilities,  except  current  liabilities  incurred in the  ordinary  course of
business and liabilities disclosed in any Exchange Act Filings.

          4.6 Agreements; Action.

          Except as set forth on Schedule  4.6 or as  disclosed  in any Exchange
Act Filings:

          (a)       there  are  no  agreements,   understandings,   instruments,
                    contracts,  proposed transactions,  judgments, orders, writs
                    or decrees to which the  Company or any of its  Subsidiaries
                    is a party or by which it is bound  which may  involve:  (i)
                    obligations  (contingent  or otherwise)  of, or payments to,
                    the Company in excess of $50,000 (other than obligations of,
                    or payments to, the Company arising from purchase or

                                        5

                    sale  agreements  entered  into in the  ordinary  course  of
                    business);  or (ii) the  transfer  or license of any patent,
                    copyright,  trade  secret or other  proprietary  right to or
                    from the  Company  (other  than  licenses  arising  from the
                    purchase of "off the shelf" or other standard products);  or
                    (iii) provisions restricting the development, manufacture or
                    distribution of the Company's products or services;  or (iv)
                    indemnification by the Company with respect to infringements
                    of proprietary rights.

          (b)       Since December 31, 2003,  neither the Company nor any of its
                    Subsidiaries  has:  (i) declared or paid any  dividends,  or
                    authorized or made any distribution  upon or with respect to
                    any class or series of its capital stock;  (ii) incurred any
                    indebtedness  for money  borrowed  or any other  liabilities
                    (other than ordinary  course  obligations)  individually  in
                    excess of  $50,000  or, in the case of  indebtedness  and/or
                    liabilities  individually  less than  $50,000,  in excess of
                    $100,000 in the aggregate;  (iii) made any loans or advances
                    to  any  person  not  in  excess,  individually  or  in  the
                    aggregate, of $100,000,  other than ordinary course advances
                    for travel  expenses;  or (iv) sold,  exchanged or otherwise
                    disposed of any of its assets or rights, other than the sale
                    of its inventory in the ordinary course of business.

          (c)       For the  purposes  of  subsections  (a) and (b)  above,  all
                    indebtedness,   liabilities,   agreements,   understandings,
                    instruments,  contracts and proposed transactions  involving
                    the same person or entity (including persons or entities the
                    Company  has reason to  believe  are  affiliated  therewith)
                    shall  be   aggregated   for  the  purpose  of  meeting  the
                    individual minimum dollar amounts of such subsections.

          4.7 Obligations to Related Parties.

          Except as set forth on Schedule 4.7,  there are no  obligations of the
Company or any of its  Subsidiaries  to  officers,  directors,  stockholders  or
employees of the Company or any of its Subsidiaries other than:

          (a)       for payment of salary for  services  rendered  and for bonus
                    payments;

          (b)       reimbursement for reasonable  expenses incurred on behalf of
                    the Company  and its  Subsidiaries;  (c) for other  standard
                    employee benefits made generally  available to all employees
                    (including  stock option  agreements  outstanding  under any
                    stock option plan  approved by the Board of Directors of the
                    Company); and

          (d)       obligations listed in the Company's financial  statements or
                    disclosed in any of its Exchange Act Filings.

                                       6


Except as described  above or set forth on Schedule  4.7,  none of the officers,
directors  or,  to the  best  of  the  Company's  knowledge,  key  employees  or
stockholders  of the Company or any  members of their  immediate  families,  are
indebted to the Company,  individually or in the aggregate, in excess of $50,000
or have any direct or indirect  ownership  interest  in any firm or  corporation
with which the  Company is  affiliated  or with which the Company has a business
relationship,  or any firm or corporation which competes with the Company, other
than passive  investments in publicly traded companies  (representing  less than
one percent (1%) of such company) which may compete with the Company.  Except as
described  above, no officer,  director or  stockholder,  or any member of their
immediate  families,  is,  directly or  indirectly,  interested  in any material
contract  with  the  Company  and  no  agreements,  understandings  or  proposed
transactions are contemplated between the Company and any such person. Except as
set forth on Schedule  4.7, the Company is not a guarantor or  indemnitor of any
indebtedness of any other person, firm or corporation.

          4.8 Changes.

          Since  December  31,  2003,  except as  disclosed  in any Exchange Act
Filing or in any Schedule to this Agreement or to any of the Related Agreements,
there has not been:

          (a)       any change in the business, assets,  liabilities,  condition
                    (financial   or   otherwise),   properties,   operations  or
                    prospects of the Company or any of its  Subsidiaries,  which
                    individually   or  in  the   aggregate  has  had,  or  could
                    reasonably  be  expected  to  have,  individually  or in the
                    aggregate, a Material Adverse Effect;

          (b)       any resignation or termination of any officer,  key employee
                    or  group  of  employees  of  the  Company  or  any  of  its
                    Subsidiaries;

          (c)       any  material  change,  except  in the  ordinary  course  of
                    business,  in the  contingent  obligations of the Company or
                    any of its  Subsidiaries  by way of  guaranty,  endorsement,
                    indemnity, warranty or otherwise;

          (d)       any damage,  destruction or loss,  whether or not covered by
                    insurance, which has had, or could reasonably be expected to
                    have,  individually or in the aggregate,  a Material Adverse
                    Effect;

          (e)       any waiver by the  Company or any of its  Subsidiaries  of a
                    valuable right or of a material debt owed to it;

          (f)       any direct or  indirect  loans made by the Company or any of
                    its  Subsidiaries to any stockholder,  employee,  officer or
                    director  of the Company or any of its  Subsidiaries,  other
                    than advances made in the ordinary course of business;

          (g)       any  material  change  in any  compensation  arrangement  or
                    agreement   with  any   employee,   officer,   director   or
                    stockholder of the Company or any of its Subsidiaries;

                                       7

          (h)       any   declaration  or  payment  of  any  dividend  or  other
                    distribution  of the  assets  of the  Company  or any of its
                    Subsidiaries;

          (i)       any labor  organization  activity  related to the Company or
                    any of its Subsidiaries;

          (j)       any debt,  obligation  or  liability  incurred,  assumed  or
                    guaranteed by the Company or any of its Subsidiaries, except
                    those for  immaterial  amounts and for  current  liabilities
                    incurred in the ordinary course of business;

          (k)       any sale, assignment or transfer of any patents, trademarks,
                    copyrights,  trade secrets or other intangible  assets owned
                    by the Company or any of its Subsidiaries;

          (l)       any change in any material agreement to which the Company or
                    any of its  Subsidiaries  is a party or by which  either the
                    Company or any of its  Subsidiaries  is bound  which  either
                    individually   or  in  the   aggregate  has  had,  or  could
                    reasonably  be  expected  to  have,  individually  or in the
                    aggregate, a Material Adverse Effect;

          (m)       any other event or condition of any character  that,  either
                    individually  or  in  the  aggregate,   has  had,  or  could
                    reasonably  be  expected  to  have,  individually  or in the
                    aggregate, a Material Adverse Effect; or

          (n)       any  arrangement  or commitment by the Company or any of its
                    Subsidiaries  to do any of the acts  described in subsection
                    (a) through (m) above.

          4.9 Title to Properties and Assets; Liens, Etc.

          Except as set forth on Schedule  4.9,  each of the Company and each of
its Subsidiaries has good and marketable title to its properties and assets, and
good  title to its  leasehold  estates,  in each case  subject  to no  mortgage,
pledge, lien, lease, encumbrance or charge, other than:

          (a)       those  resulting  from  taxes  which  have  not  yet  become
                    delinquent;

          (b)       minor liens and encumbrances which do not materially detract
                    from the value of the property subject thereto or materially
                    impair  the   operations  of  the  Company  or  any  of  its
                    Subsidiaries; and

          (c)       those that have otherwise  arisen in the ordinary  course of
                    business.

All facilities,  machinery,  equipment,  fixtures, vehicles and other properties
owned,  leased or used by the Company and its Subsidiaries are in good operating
condition  and repair and are  reasonably  fit and usable for the  purposes  for
which they are being used.  Except as set forth on Schedule 4.9, the Company and
its  Subsidiaries  are in  compliance  with all material  terms of each lease to
which it is a party or is otherwise bound.

                                       8


          4.10 Intellectual Property.

          (a)       Each of the  Company  and each of its  Subsidiaries  owns or
                    possesses   sufficient   legal   rights   to  all   patents,
                    trademarks,  service marks, trade names,  copyrights,  trade
                    secrets, licenses,  information and other proprietary rights
                    and  processes  necessary  for its business as now conducted
                    and to the Company's knowledge,  as presently proposed to be
                    conducted (the "Intellectual  Property"),  without any known
                    infringement   of  the  rights  of  others.   There  are  no
                    outstanding  options,  licenses  or  agreements  of any kind
                    relating to the  foregoing  proprietary  rights,  nor is the
                    Company  or any of its  Subsidiaries  bound by or a party to
                    any options, licenses or agreements of any kind with respect
                    to the  patents,  trademarks,  service  marks,  trade names,
                    copyrights,  trade secrets, licenses,  information and other
                    proprietary  rights  and  processes  of any other  person or
                    entity other than such licenses or  agreements  arising from
                    the purchase of "off the shelf" or standard products.

          (b)       Neither the Company nor any of its Subsidiaries has received
                    any  communications  alleging that the Company or any of its
                    Subsidiaries  has violated  any of the patents,  trademarks,
                    service marks,  trade names,  copyrights or trade secrets or
                    other proprietary  rights of any other person or entity, nor
                    is the Company or any of its Subsidiaries aware of any basis
                    therefor.

          (c)       The Company  does not believe it is or will be  necessary to
                    utilize  any   inventions,   trade  secrets  or  proprietary
                    information  of any of its  employees  made  prior  to their
                    employment by the Company or any of its Subsidiaries, except
                    for  inventions,  trade secrets or  proprietary  information
                    that have been rightfully  assigned to the Company or any of
                    its Subsidiaries.

          4.11 Compliance with Other Instruments.

          Neither the Company nor any of its  Subsidiaries  is in  violation  or
default of (x) any term of its Charter or Bylaws, or (y) of any provision of any
indebtedness, mortgage, indenture, contract, agreement or instrument to which it
is party or by which  it is  bound or of any  judgment,  decree,  order or writ,
which  violation  or default,  in the case of this clause (y), has had, or could
reasonably  be expected to have,  either  individually  or in the  aggregate,  a
Material  Adverse  Effect.  The  execution,  delivery  and  performance  of  and
compliance  with this  Agreement  and the  Related  Agreements  to which it is a
party,  and the  issuance  and sale of the  Note by the  Company  and the  other
Securities  by the Company each pursuant  hereto and thereto,  will not, with or
without  the  passage of time or giving of notice,  result in any such  material
violation, or be in conflict with or constitute a default under any such term or
provision, or result in the creation of any mortgage,  pledge, lien, encumbrance
or charge  upon any of the  properties  or assets of the  Company  or any of its
Subsidiaries or the suspension, revocation, impairment, forfeiture or nonrenewal

                                       9


of any permit, license, authorization or approval applicable to the Company, its
business or operations or any of its assets or properties.

          4.12 Litigation.

          Except as set forth on Schedule 4.12 hereto, there is no action, suit,
proceeding or investigation  pending or, to the Company's  knowledge,  currently
threatened  against the Company or any of its  Subsidiaries  that  prevents  the
Company or any of its  Subsidiaries  from  entering  into this  Agreement or the
other Related  Agreements,  or from  consummating the transactions  contemplated
hereby or thereby,  or which has had, or could  reasonably  be expected to have,
either individually or in the aggregate, a Material Adverse Effect or any change
in the current equity ownership of the Company or any of its  Subsidiaries,  nor
is the  Company  aware that  there is any basis to assert any of the  foregoing.
Neither  the Company  nor any of its  Subsidiaries  is a party or subject to the
provisions of any order,  writ,  injunction,  judgment or decree of any court or
government agency or instrumentality.  There is no action,  suit,  proceeding or
investigation  by the Company or any of its  Subsidiaries  currently  pending or
which the Company or any of its Subsidiaries intends to initiate.

          4.13 Tax Returns and Payments.

          Each of the Company and each of its  Subsidiaries has timely filed all
tax  returns  (federal,  state and local)  required to be filed by it. All taxes
shown to be due and payable on such returns,  any assessments  imposed,  and all
other  taxes due and  payable by the  Company or any of its  Subsidiaries  on or
before the Closing, have been paid or will be paid prior to the time they become
delinquent. Except as set forth on Schedule 4.13, neither the Company nor any of
its Subsidiaries has been advised:

          (a)       that any of its returns,  federal, state or other, have been
                    or are being audited as of the date hereof; or

          (b)       of any deficiency in assessment or proposed  judgment to its
                    federal, state or other taxes.

The Company has no knowledge of any liability for any tax to be imposed upon its
properties or assets as of the date of this Agreement that is not adequately
provided for.

          4.14 Employees.

          Except as set forth on Schedule  4.14,  neither the Company nor any of
its  Subsidiaries  has any  collective  bargaining  agreements  with  any of its
employees.  There is no labor  union  organizing  activity  pending  or,  to the
Company's  knowledge,  threatened  with  respect  to the  Company  or any of its
Subsidiaries.  Except as  disclosed  in the  Exchange Act Filings or on Schedule
4.14,  neither the Company nor any of its Subsidiaries is a party to or bound by
any currently effective employment contract,  deferred compensation arrangement,
bonus plan,  incentive plan, profit sharing plan,  retirement agreement or other
employee compensation plan or agreement. To the Company's knowledge, no employee
of the  Company or any of its  Subsidiaries,  nor any  consultant  with whom the
Company or any of its Subsidiaries  has contracted,  is in violation of any term
of any  employment  contract,  proprietary  information  agreement  or any other
agreement  relating to the right of any such individual to be employed by, or to
contract


                                       10

with,  the  Company  or any of its  Subsidiaries  because  of the  nature of the
business to be conducted by the Company or any of its  Subsidiaries;  and to the
Company's  knowledge  the  continued  employment  by the  Company  or any of its
Subsidiaries of its present employees,  and the performance of the Company's and
its Subsidiaries' contracts with its independent contractors, will not result in
any such  violation.  Neither the Company nor any of its  Subsidiaries  is aware
that any of its employees is obligated under any contract  (including  licenses,
covenants or  commitments of any nature) or other  agreement,  or subject to any
judgment,  decree or order of any court or  administrative  agency,  that  would
interfere with their duties to the Company or any of its  Subsidiaries.  Neither
the Company nor any of its  Subsidiaries  has received any notice  alleging that
any such  violation  has  occurred.  Except  for  employees  who have a  current
effective employment  agreement with the Company or any of its Subsidiaries,  no
employee of the Company or any of its Subsidiaries has been granted the right to
continued  employment  by the  Company  or any  of  its  Subsidiaries  or to any
material  compensation  following  termination of employment with the Company or
any of its  Subsidiaries.  Except as set forth on Schedule  4.14, the Company is
not aware  that any  officer,  key  employee  or group of  employees  intends to
terminate  his,  her  or  their  employment  with  the  Company  or  any  of its
Subsidiaries,  nor does the  Company or any of its  Subsidiaries  have a present
intention to terminate the  employment of any officer,  key employee or group of
employees.

          4.15 Registration Rights and Voting Rights.

          Except as set  forth on  Schedule  4.15 and  except  as  disclosed  in
Exchange  Act  Filings,  neither  the  Company  nor any of its  Subsidiaries  is
presently  under  any  obligation,  and  neither  the  Company  nor  any  of its
Subsidiaries  has granted any rights,  to register  any of the  Company's or its
Subsidiaries' presently outstanding securities or any of its securities that may
hereafter  be  issued.  Except  as set  forth on  Schedule  4.15 and  except  as
disclosed in Exchange Act Filings, to the Company's knowledge, no stockholder of
the Company or any of its  Subsidiaries  has  entered  into any  agreement  with
respect  to  the  voting  of  equity  securities  of the  Company  or any of its
Subsidiaries.

          4.16 Compliance with Laws; Permits.

          Neither the Company nor any of its Subsidiaries is in violation of any
applicable statute,  rule,  regulation,  order or restriction of any domestic or
foreign  government or any  instrumentality  or agency thereof in respect of the
conduct of its  business or the  ownership of its  properties  which has had, or
could reasonably be expected to have, either individually or in the aggregate, a
Material  Adverse  Effect.  No  governmental  orders,   permissions,   consents,
approvals or authorizations  are required to be obtained and no registrations or
declarations  are  required to be filed in  connection  with the  execution  and
delivery of this  Agreement or any other  Related  Agreement and the issuance of
any of the  Securities,  except  such as has been duly and  validly  obtained or
filed,  or with respect to any filings  that must be made after the Closing,  as
will be filed in a timely manner.  Each of the Company and its  Subsidiaries has
all material franchises,  permits,  licenses and any similar authority necessary
for the conduct of its business as now being  conducted by it, the lack of which
could, either individually or in the aggregate, reasonably be expected to have a
Material Adverse Effect.

                                       11


          4.17 Environmental and Safety Laws.

          Neither the Company nor any of its Subsidiaries is in violation of any
applicable   statute,   law  or  regulation   relating  to  the  environment  or
occupational health and safety, and to its knowledge,  no material  expenditures
are or will be required in order to comply with any such existing  statute,  law
or regulation.  Except as set forth on Schedule 4.17, no Hazardous Materials (as
defined below) are used or have been used, stored, or disposed of by the Company
or any of its Subsidiaries or, to the Company's  knowledge,  by any other person
or entity on any  property  owned,  leased or used by the  Company or any of its
Subsidiaries.  For the purposes of the preceding sentence, "Hazardous Materials"
shall mean:

          (a)       materials   which  are  listed  or   otherwise   defined  as
                    "hazardous"  or "toxic" under any applicable  local,  state,
                    federal and/or foreign laws and regulations  that govern the
                    existence and/or remedy of  contamination  on property,  the
                    protection  of  the  environment  from  contamination,   the
                    control of hazardous wastes,  or other activities  involving
                    hazardous substances, including building materials; or

          (b)       any petroleum products or nuclear materials.

          4.18 Valid Offering.

          Assuming the accuracy of the  representations  and  warranties  of the
Purchaser  contained  in this  Agreement,  the offer,  sale and  issuance of the
Securities will be exempt from the  registration  requirements of the Securities
Act of 1933, as amended (the "Securities Act"), and will have been registered or
qualified  (or  are  exempt  from  registration  and  qualification)  under  the
registration,  permit or  qualification  requirements  of all  applicable  state
securities laws.

          4.19 Full Disclosure.

          Each of the  Company and each of its  Subsidiaries  has  provided  the
Purchaser with all information requested by the Purchaser in connection with its
decision to purchase the Note and Warrant, including all information the Company
and its  Subsidiaries  believe is reasonably  necessary to make such  investment
decision.  Neither  this  Agreement,  the Related  Agreements,  the exhibits and
schedules hereto and thereto nor any other document  delivered by the Company or
any of its  Subsidiaries  to Purchaser or its  attorneys or agents in connection
herewith or therewith or with the transactions  contemplated  hereby or thereby,
contain  any untrue  statement  of a material  fact nor omit to state a material
fact necessary in order to make the statements  contained herein or therein,  in
light of the circumstances in which they are made, not misleading. Any financial
projections and other estimates  provided to the Purchaser by the Company or any
of its Subsidiaries were based on the Company's and its Subsidiaries' experience
in the industry and on assumptions of fact and opinion as to future events which
the  Company or any of its  Subsidiaries,  at the date of the  issuance  of such
projections or estimates, believed to be reasonable.

          4.20 Insurance.

                                       12


          Each  of  the  Company  and  each  of  its  Subsidiaries  has  general
commercial,  product  liability,  fire  and  casualty  insurance  policies  with
coverages  which the Company  believes are  customary  for  companies  similarly
situated to the Company and its Subsidiaries in the same or similar business.

          4.21 SEC Reports.

          Except as set forth on Schedule  4.21, the Company has filed all proxy
statements,  reports  and other  documents  required to be filed by it under the
Securities  Exchange Act 1934, as amended (the "Exchange  Act"). The Company has
furnished the Purchaser with copies of: (i) its Annual Report on Form 10-KSB for
its fiscal year ended December 31, 2003; and (ii) its Quarterly  Reports on Form
10-QSB for its fiscal quarters ended March 31, 2004, June 30, 2004 and September
30,  2004,  and the Form 8-K  filings  which it has made  during the fiscal year
ended December 31, 2004 to date (collectively, the "SEC Reports"). Except as set
forth on Schedule  4.21,  each SEC Report  was,  at the time of its  filing,  in
substantial  compliance with the requirements of its respective form and none of
the SEC Reports,  nor the financial  statements (and the notes thereto) included
in the SEC Reports,  as of their respective  filing dates,  contained any untrue
statement of a material  fact or omitted to state a material fact required to be
stated  therein or necessary  to make the  statements  therein,  in light of the
circumstances under which they were made, not misleading.

          4.22 Listing.

          The  Company's  Common  Stock is quoted  for  trading  on the NASD OTC
Bulletin Board ("OTC BB") and satisfies all requirements for the continuation of
such  quotation.  The Company has not  received any notice that its Common Stock
will be removed  from  quotation  from OTC BB or that its Common  Stock does not
meet all requirements for quotation for trading.

          4.23 No Integrated Offering.

          Neither the Company,  nor any of its  Subsidiaries or affiliates,  nor
any person  acting on its or their behalf,  has directly or indirectly  made any
offers or sales of any  security  or  solicited  any offers to buy any  security
under  circumstances that would cause the offering of the Securities pursuant to
this  Agreement or any of the Related  Agreements  to be  integrated  with prior
offerings by the Company for purposes of the  Securities Act which would prevent
the  Company  from  selling  the  Securities  pursuant  to Rule  506  under  the
Securities  Act,  or  any  applicable   exchange-related   stockholder  approval
provisions,  nor will the Company or any of its affiliates or Subsidiaries  take
any  action or steps that  would  cause the  offering  of the  Securities  to be
integrated with other offerings.

          4.24 Stop Transfer.

          The  Securities  are  restricted  securities  as of the  date  of this
Agreement.  Neither the Company nor any of its Subsidiaries  will issue any stop
transfer  order or other  order  impeding  the sale and  delivery  of any of the
Securities at such time as the  Securities  are registered for public sale or an
exemption  from  registration  is  available,  except as  required  by state and
federal securities laws.

                                       13

          4.25 Dilution.

          The Company specifically acknowledges that its obligation to issue the
shares of Common Stock upon  conversion  of the Note and exercise of the Warrant
is binding upon the Company and  enforceable  regardless  of the  dilution  such
issuance  may  have on the  ownership  interests  of other  shareholders  of the
Company.

          4.26 Patriot Act.

          The  Company  certifies  that,  to the  best of  Company's  knowledge,
neither the Company nor any of its Subsidiaries has been designated,  and is not
owned or controlled,  by a "suspected  terrorist" as defined in Executive  Order
13224. The Company hereby  acknowledges  that the Purchaser seeks to comply with
all applicable  laws  concerning  money  laundering and related  activities.  In
furtherance of those efforts, the Company hereby represents, warrants and agrees
that:  (i)  none  of  the  cash  or  property  that  the  Company  or any of its
Subsidiaries  will pay or will  contribute to the Purchaser has been or shall be
derived from, or related to, any activity that is deemed  criminal  under United
States  law;  and (ii) no  contribution  or payment by the Company or any of its
Subsidiaries to the Purchaser,  to the extent that they are within the Company's
and/or its Subsidiaries' control shall cause the Purchaser to be in violation of
the United  States Bank  Secrecy  Act,  the United  States  International  Money
Laundering  Control  Act  of  1986  or the  United  States  International  Money
Laundering Abatement and Anti-Terrorist Financing Act of 2001. The Company shall
promptly notify the Purchaser if any of these representations  ceases to be true
and  accurate  regarding  the  Company or any of its  Subsidiaries.  The Company
agrees to provide the Purchaser any additional information regarding the Company
or any of its  Subsidiaries  that the Purchaser deems necessary or convenient to
ensure  compliance  with all applicable  laws  concerning  money  laundering and
similar activities. The Company understands and agrees that if at any time it is
discovered  that  any of the  foregoing  representations  are  incorrect,  or if
otherwise  required by applicable law or regulation  related to money laundering
or similar activities, the Purchaser may undertake appropriate actions to ensure
compliance  with  applicable  law or  regulation,  including  but not limited to
segregation and/or redemption of the Purchaser's  investment in the Company. The
Company  further  understands  that  the  Purchaser  may  release   confidential
information  about the Company and its  Subsidiaries  and,  if  applicable,  any
underlying  beneficial  owners, to proper  authorities if the Purchaser,  in its
sole discretion, determines that it is in the best interests of the Purchaser in
light of relevant rules and  regulations  under the laws set forth in subsection
(ii) above.

     5. Representations and Warranties of the Purchaser.

     The  Purchaser  hereby  represents  and  warrants to the Company as follows
(such   representations   and   warranties   do  not  lessen  or   obviate   the
representations and warranties of the Company set forth in this Agreement):

          5.1 No Shorting.

          The Purchaser or any of its  affiliates  and  investment  partners has
not,  will not and will not cause any person or entity,  to  directly  engage in
"short  sales"  of the  Company's  Common  Stock  as long as the  Note  shall be
outstanding.

          5.2 Requisite Power and Authority.

                                       14

          The  Purchaser  has  all  necessary  power  and  authority  under  all
applicable  provisions  of law to execute and  deliver  this  Agreement  and the
Related  Agreements and to carry out their  provisions.  All corporate action on
Purchaser's  part  required  for  the  lawful  execution  and  delivery  of this
Agreement  and the Related  Agreements  have been or will be  effectively  taken
prior to the Closing. Upon their execution and delivery,  this Agreement and the
Related  Agreements  will  be  valid  and  binding   obligations  of  Purchaser,
enforceable in accordance with their terms, except:

          (a)       as   limited   by   applicable    bankruptcy,    insolvency,
                    reorganization,   moratorium   or  other   laws  of  general
                    application affecting enforcement of creditors' rights; and

          (b)       as limited by general principles of equity that restrict the
                    availability of equitable and legal remedies.

          5.3 Investment Representations.

          Purchaser  understands  that the Securities are being offered and sold
pursuant to an exemption from registration contained in the Securities Act based
in part upon Purchaser's representations contained in the Agreement,  including,
without  limitation,  that the Purchaser is an "accredited  investor" within the
meaning of  Regulation  D under the  Securities  Act of 1933,  as  amended  (the
"Securities  Act"). The Purchaser  confirms that it has received or has had full
access to all the  information it considers  necessary or appropriate to make an
informed  investment  decision  with  respect to the Note and the  Warrant to be
purchased by it under this  Agreement and the Note Shares and the Warrant Shares
acquired by it upon the  conversion of the Note and the exercise of the Warrant,
respectively.  The Purchaser  further confirms that it has had an opportunity to
ask questions and receive  answers from the Company  regarding the Company's and
its Subsidiaries'  business,  management and financial affairs and the terms and
conditions  of the Offering,  the Note,  the Warrant and the  Securities  and to
obtain  additional  information  (to  the  extent  the  Company  possessed  such
information  or  could  acquire  it  without  unreasonable  effort  or  expense)
necessary to verify any  information  furnished to the Purchaser or to which the
Purchaser had access.

          5.4 Purchaser Bears Economic Risk.

          The Purchaser has  substantial  experience in evaluating and investing
in private  placement  transactions  of securities  in companies  similar to the
Company  so that it is  capable  of  evaluating  the  merits  and  risks  of its
investment in the Company and has the capacity to protect its own interests. The
Purchaser  must bear the economic risk of this  investment  until the Securities
are  sold  pursuant  to:  (i) an  effective  registration  statement  under  the
Securities Act; or (ii) an exemption from registration is available with respect
to such sale.

          5.5 Acquisition for Own Account.

          The  Purchaser is  acquiring  the Note and Warrant and the Note Shares
and the Warrant Shares for the Purchaser's own account for investment  only, and
not as a  nominee  or  agent  and  not  with a view  towards  or for  resale  in
connection with their distribution.

                                       15

          5.6 Purchaser Can Protect Its Interest.

          The   Purchaser   represents   that  by  reason  of  its,  or  of  its
management's,  business and financial experience, the Purchaser has the capacity
to evaluate the merits and risks of its  investment in the Note, the Warrant and
the  Securities  and to  protect  its  own  interests  in  connection  with  the
transactions contemplated in this Agreement and the Related Agreements. Further,
Purchaser is aware of no publication of any advertisement in connection with the
transactions contemplated in the Agreement or the Related Agreements.

          5.7 Accredited Investor.

          Purchaser  represents  that it is an  accredited  investor  within the
meaning of Regulation D under the Securities Act.

          5.8 Legends.

          (a)       The Note shall bear substantially the following legend:

          "THIS NOTE AND THE COMMON STOCK ISSUABLE UPON  CONVERSION OF THIS NOTE
          HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
          OR ANY  APPLICABLE  STATE  SECURITIES  LAWS.  THIS NOTE AND THE COMMON
          STOCK ISSUABLE UPON  CONVERSION OF THIS NOTE MAY NOT BE SOLD,  OFFERED
          FOR SALE,  PLEDGED OR  HYPOTHECATED  IN THE  ABSENCE  OF AN  EFFECTIVE
          REGISTRATION  STATEMENT  AS TO THIS NOTE OR SUCH SHARES UNDER SAID ACT
          AND  APPLICABLE  STATE  SECURITIES  LAWS  OR  AN  OPINION  OF  COUNSEL
          REASONABLY  SATISFACTORY  TO SCIENCE  DYNAMICS  CORPORATION  THAT SUCH
          REGISTRATION IS NOT REQUIRED."

          (b)       The Note  Shares and the  Warrant  Shares,  if not issued by
                    DWAC system (as  hereinafter  defined),  shall bear a legend
                    which shall be in  substantially  the  following  form until
                    such  shares  are  covered  by  an  effective   registration
                    statement filed with the SEC:

          "THE SHARES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN REGISTERED
          UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR ANY APPLICABLE STATE
          SECURITIES  LAWS.  THESE  SHARES  MAY NOT BE SOLD,  OFFERED  FOR SALE,
          PLEDGED OR  HYPOTHECATED  IN THE ABSENCE OF AN EFFECTIVE  REGISTRATION
          STATEMENT  UNDER SUCH  SECURITIES ACT AND APPLICABLE  STATE LAWS OR AN
          OPINION  OF  COUNSEL  REASONABLY   SATISFACTORY  TO  SCIENCE  DYNAMICS
          CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED."


     (c)  The Warrant shall bear substantially the following legend:

          "THISWARRANT  AND THE COMMON  SHARES  ISSUABLE  UPON  EXERCISE OF THIS
          WARRANT HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
          AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS. THIS WARRANT AND THE
          COMMON SHARES  ISSUABLE UPON EXERCISE OF THIS WARRANT MAY NOT BE SOLD,
          OFFERED  FOR  SALE,  PLEDGED  OR  HYPOTHECATED  IN THE  ABSENCE  OF AN
          EFFECTIVE  REGISTRATION STATEMENT AS TO THIS WARRANT OR THE UNDERLYING
          SHARES OF COMMON STOCK UNDER SAID ACT AND APPLICABLE  STATE SECURITIES
          LAWS OR AN  OPINION  OF  COUNSEL  REASONABLY  SATISFACTORY  TO SCIENCE
          DYNAMICS CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED."

                                       16


     6. Covenants of the Company.

     The Company covenants and agrees with the Purchaser as follows:

          6.1 Stop-Orders.

          The Company  will  advise the  Purchaser,  promptly  after it receives
notice of issuance by the Securities and Exchange  Commission  (the "SEC"),  any
state securities  commission or any other regulatory authority of any stop order
or of any order  preventing or suspending  any offering of any securities of the
Company,  or of the suspension of the  qualification  of the Common Stock of the
Company  for  offering or sale in any  jurisdiction,  or the  initiation  of any
proceeding for any such purpose.

          6.2 Trading.

          The Company shall promptly  secure the trading of the shares of Common
Stock issuable upon  conversion of the Note and upon the exercise of the Warrant
on the OTC BB (the  "Principal  Market")  upon which  shares of Common Stock are
traded and shall  maintain  such  trading so long as any other  shares of Common
Stock shall be so traded.  The Company  will  maintain the trading of its Common
Stock on the Principal Market, and will comply in all material respects with the
Company's  reporting,  filing and other obligations under the bylaws or rules of
the National  Association  of Securities  Dealers  ("NASD") and such market,  as
applicable.

          6.3 Market Regulations.

          The  Company  shall  notify  the  SEC,  NASD  and   applicable   state
authorities,  in  accordance  with  their  requirements,   of  the  transactions
contemplated  by this Agreement,  and shall take all other necessary  action and
proceedings  as may be  required  and  permitted  by  applicable  law,  rule and
regulation,  for the legal and valid issuance of the Securities to the Purchaser
and promptly provide copies thereof to the Purchaser.

          6.4 Reporting Requirements.

                                       17


          The Company  will timely file with the SEC all reports  required to be
filed pursuant to the Exchange Act and refrain from terminating its status as an
issuer  required by the  Exchange  Act to file  reports  thereunder  even if the
Exchange  Act  or  the  rules  or  regulations   thereunder  would  permit  such
termination.

          6.5 Use of Funds.

          The Company  agrees  that it will use the  proceeds of the sale of the
Note and the Warrant only for (i) general  working  capital  purposes,  (ii) the
acquisition (the  "Acquisition")  of no less than 80% of the equity interests of
Systems  Management  Engineering,  Inc.  ("SMEI") pursuant to the Stock Purchase
Agreement,  dated as of December 16, 2004 by and among the Company, SMEI and the
shareholders of SMEI identified therein (the "Sellers") (as amended by Amendment
No. 1 to Stock  Purchase  Agreement,  dated December 16, 2004 among the Company,
SMEI and the Sellers,  the "Stock Purchase Agreement") and (iii) the acquisition
of 100% of the remaining  equity  interests of SMEI pursuant to a transaction in
form and substance reasonably satisfactory to the Purchaser.

          6.6 Access to Facilities.

          Each of the  Company  and each of its  Subsidiaries  will  permit  any
representatives designated by the Purchaser (or any successor of the Purchaser),
upon  reasonable  notice and during  normal  business  hours,  at such  person's
expense and accompanied by a representative of the Company, to:

          (a)       visit and  inspect any of the  properties  of the Company or
                    any of its Subsidiaries;

          (b)       examine the corporate  and financial  records of the Company
                    or any of its  Subsidiaries  (unless such examination is not
                    permitted by federal, state or local law or by contract) and
                    make copies thereof or extracts therefrom; and

          (c)       discuss the affairs, finances and accounts of the Company or
                    any of its  Subsidiaries  with the  directors,  officers and
                    independent  accountants  of  the  Company  or  any  of  its
                    Subsidiaries.

Notwithstanding  the foregoing,  neither the Company nor any of its Subsidiaries
will provide any material,  non-public  information to the Purchaser  unless the
Purchaser  signs  a  confidentiality   agreement  and  otherwise  complies  with
Regulation FD, under the federal securities laws.

          6.7 Taxes.

          Each of the Company and each of its Subsidiaries will promptly pay and
discharge, or cause to be paid and discharged,  when due and payable, all lawful
taxes,  assessments and governmental  charges or levies imposed upon the income,
profits,  property or business  of the Company and its  Subsidiaries;  provided,
however,  that any such tax, assessment,  charge or levy need not be paid if the
validity  thereof  shall  currently be  contested  in good faith by  appropriate
proceedings and if the Company and/or such Subsidiary shall have set aside on

                                       18


its books adequate reserves with respect thereto,  and provided,  further,  that
the Company and its Subsidiaries will pay all such taxes,  assessments,  charges
or levies  forthwith upon the  commencement of proceedings to foreclose any lien
which may have attached as security therefor.

          6.8 Insurance.

          Each of the Company and its  Subsidiaries  will keep its assets  which
are of an  insurable  character  insured  by  financially  sound  and  reputable
insurers against loss or damage by fire,  explosion and other risks  customarily
insured  against by  companies  in similar  business  similarly  situated as the
Company  and  its  Subsidiaries;  and the  Company  and  its  Subsidiaries  will
maintain, with financially sound and reputable insurers, insurance against other
hazards and risks and liability to persons and property to the extent and in the
manner  which the Company  reasonably  believes is  customary  for  companies in
similar business  similarly  situated as the Company and its Subsidiaries and to
the extent available on commercially  reasonable terms. The Company, and each of
its Subsidiaries  will jointly and severally bear the full risk of loss from any
loss  of any  nature  whatsoever  with  respect  to the  assets  pledged  to the
Purchaser  as  security  for its  obligations  hereunder  and under the  Related
Agreements.  At the  Company's and each of its  Subsidiaries'  joint and several
cost  and  expense  in  amounts  and  with  carriers  reasonably  acceptable  to
Purchaser,  the  Company  and each of its  Subsidiaries  shall  (i) keep all its
insurable  properties and properties in which it has an interest insured against
the hazards of fire, flood, sprinkler leakage, those hazards covered by extended
coverage insurance and such other hazards, and for such amounts, as is customary
in the case of companies  engaged in businesses  similar to the Company's or the
respective Subsidiary's including business interruption insurance; (ii) maintain
a bond in such  amounts  as is  customary  in the case of  companies  engaged in
businesses  similar to the  Company's or the  respective  Subsidiary's  insuring
against larceny,  embezzlement or other criminal  misappropriation  of insured's
officers and  employees who may either singly or jointly with others at any time
have  access to the assets or funds of the  Company  or any of its  Subsidiaries
either directly or through governmental  authority to draw upon such funds or to
direct  generally the  disposition  of such assets;  (iii)  maintain  public and
product  liability  insurance  against  claims  for  personal  injury,  death or
property damage suffered by others; (iv) maintain all such worker's compensation
or  similar  insurance  as may be  required  under  the  laws  of any  state  or
jurisdiction  in which the Company or the  respective  Subsidiary  is engaged in
business; and (v) furnish Purchaser with (x) copies of all policies and evidence
of the  maintenance  of such  policies  at least  thirty  (30) days  before  any
expiration  date,  (y)  excepting the Company's  workers'  compensation  policy,
endorsements  to such policies  naming  Purchaser as "co-insured" or "additional
insured"  and  appropriate  loss  payable  endorsements  in form  and  substance
satisfactory to Purchaser, naming Purchaser as loss payee, and (z) evidence that
as to Purchaser the insurance  coverage  shall not be impaired or invalidated by
any act or neglect of the Company or any Subsidiary and the insurer will provide
Purchaser  with at least  thirty (30) days  notice  prior to  cancellation.  The
Company and each  Subsidiary  shall instruct the insurance  carriers that in the
event of any loss  thereunder,  the carriers shall make payment for such loss to
the Company and/or the Subsidiary and Purchaser jointly. In the event that as of
the date of receipt of each loss recovery upon any such insurance, the Purchaser
has not declared an event of default  with  respect to this  Agreement or any of
the  Related  Agreements,  then the  Company  and/or  such  Subsidiary  shall be
permitted  to direct  the  application  of such loss  recovery  proceeds  toward
investment in property,  plant and equipment  that would  comprise  "Collateral"
secured by

                                       19


Purchaser's  security  interest  pursuant to its  security  agreement,  with any
surplus funds to be applied toward payment of the  obligations of the Company to
Purchaser. In the event that Purchaser has properly declared an event of default
with respect to this Agreement or any of the Related  Agreements,  then all loss
recoveries  received by  Purchaser  upon any such  insurance  thereafter  may be
applied  to the  obligations  of the  Company  hereunder  and under the  Related
Agreements, in such order as the Purchaser may determine. Any surplus (following
satisfaction of all Company obligations to Purchaser) shall be paid by Purchaser
to the Company or applied as may be otherwise  required by law.  Any  deficiency
thereon  shall be paid by the  Company  or the  Subsidiary,  as  applicable,  to
Purchaser, on demand.

          6.9 Intellectual Property.

          Each of the Company  and each of its  Subsidiaries  shall  maintain in
full force and effect its existence,  rights and franchises and all licenses and
other  rights  to  use  Intellectual  Property  owned  or  possessed  by it  and
reasonably deemed to be necessary to the conduct of its business.

          6.10 Properties.

          Each  of the  Company  and  each of its  Subsidiaries  will  keep  its
properties in good repair, working order and condition, reasonable wear and tear
excepted,  and from time to time make all needful and proper repairs,  renewals,
replacements,  additions and improvements  thereto;  and each of the Company and
each of its  Subsidiaries  will at all times  comply with each  provision of all
leases to which it is a party or under which it occupies  property if the breach
of such provision could, either individually or in the aggregate,  reasonably be
expected tohave a Material Adverse Effect.

          6.11 Confidentiality.

          The Company agrees that it will not disclose,  and will not include in
any public announcement,  the name of the Purchaser,  unless expressly agreed to
by the  Purchaser  or unless and until such  disclosure  is  required  by law or
applicable  regulation,  and  then  only  to the  extent  of  such  requirement.
Notwithstanding the foregoing, the Company may disclose Purchaser's identity and
the  terms  of  this  Agreement  in its  SEC  Reports  and to  its  current  and
prospective debt and equity financing sources.

          6.12 Required Approvals.

          For so long as  twenty-five  percent (25%) of the principal  amount of
the Note is outstanding,  the Company,  without the prior written consent of the
Purchaser, shall not, and shall not permit any of its Subsidiaries to:

          (a) (i) directly or  indirectly  declare or pay any  dividends,  other
than dividends paid to the Parent or any of its wholly-owned Subsidiaries,  (ii)
issue any preferred stock that is manditorily  redeemable  prior to February 11,
2009 or (iii) redeem any of its preferred stock or other equity interests;

                                       20


          (b) liquidate,  dissolve or effect a material reorganization (it being
understood that in no event shall the Company dissolve,  liquidate or merge with
any other person or entity (unless the Company is the surviving entity);

          (c)  become  subject  to  (including,  without  limitation,  by way of
amendment to or modification  of) any agreement or instrument which by its terms
would  (under  any   circumstances)   restrict  the  Company's  or  any  of  its
Subsidiaries  right to perform the  provisions  of this  Agreement,  any Related
Agreement or any of the agreements contemplated hereby or thereby;

          (d) except as  contemplated  pursuant to any  strategic  acquisitions,
materially  alter or change the scope of the  business  of the  Company  and its
Subsidiaries taken as a whole;

          (e) (i)  create,  incur,  assume or  suffer to exist any  indebtedness
(exclusive  of trade debt and debt incurred to finance the purchase of equipment
(not in excess of five percent  (5%) of the fair market  value of the  Company's
and its  Subsidiaries'  assets)  whether secured or unsecured other than (x) the
Company's indebtedness to the Purchaser,  (y) indebtedness set forth on Schedule
6.12(e)  attached  hereto  and  made a  part  hereof  and  any  refinancings  or
replacements  thereof  on  terms no less  favorable  to the  Purchaser  than the
indebtedness  being  refinanced  or  replaced,  and (z)  any  debt  incurred  in
connection  with the purchase of assets in the ordinary  course of business,  or
any  refinancings  or  replacements  thereof on terms no less  favorable  to the
Purchaser than the indebtedness  being  refinanced or replaced;  (ii) cancel any
debt  owing to it in excess of  $50,000  in the  aggregate  during  any 12 month
period;  (iii)  assume,  guarantee,  endorse or  otherwise  become  directly  or
contingently  liable in  connection  with any  obligations  of any other Person,
except the  endorsement of negotiable  instruments by the Company for deposit or
collection  or  similar  transactions  in the  ordinary  course of  business  or
guarantees of  indebtedness  otherwise  permitted to be outstanding  pursuant to
this clause (e); and

          (f) create or acquire any Subsidiary  after the date hereof unless (i)
such  Subsidiary  is a  wholly-owned  Subsidiary  of the Company  (other than in
respect  of  SMEI  which  shall  be at  least  80%  owned  by the  Company  upon
consummation of the Acquisition),  and (ii) such Subsidiary becomes party to the
Master  Security  Agreement,  the  Stock  Pledge  Agreement  and the  Subsidiary
Guaranty (either by executing a counterpart  thereof or an assumption or joinder
agreement  in respect  thereof)  and, to the extent  required by the  Purchaser,
satisfies each condition of this Agreement and the Related Agreements as if such
Subsidiary were a Subsidiary on the Closing Date.

          (g) (i) make  investments  in,  make  any  loans or  advances  to,  or
transfer assets to, any of the Non-Wholly Owned  Subsidiaries or (ii) permit any
Subsidiary  to make  investments  in, make any loans or advances to, or transfer
assets to, any of the Non-Wholly Owned Subsidiaries,  other than, in the case of
each of the  foregoing  clauses  (i) and (ii),  immaterial  investments,  loans,
advances and/or asset transfers made in the ordinary course of business.

                                       21


          6.13 Reissuance of Securities.

          The Company agrees to reissue certificates representing the Securities
without the legends set forth in Section 5.8 above at such time as:

          (a)       the  holder   thereof  is   permitted  to  dispose  of  such
                    Securities pursuant to Rule 144(k) under the Securities Act;
                    or

          (b)       upon resale subject to an effective  registration  statement
                    after such  Securities are  registered  under the Securities
                    Act.

The Company  agrees to  cooperate  with the  Purchaser  in  connection  with all
resales  pursuant  to Rule 144(d) and Rule  144(k) and  provide  legal  opinions
necessary  to allow such resales  provided  the Company and its counsel  receive
reasonably  requested  representations from the selling Purchaser and broker, if
any.

          6.14 Opinion.

          On the Closing  Date,  the Company  will  deliver to the  Purchaser an
opinion acceptable to the Purchaser from the Company's external legal counsel.

The Company will provide, at the Company's expense, such other legal opinions in
the future as are deemed  reasonably  necessary by the Purchaser (and acceptable
to the Purchaser) in connection  with the conversion of the Note and exercise of
the Warrant.

          6.15 Margin Stock.

          The  Company  will not permit any of the  proceeds  of the Note or the
Warrant to be used  directly or  indirectly  to  "purchase"  or "carry"  "margin
stock" or to repay indebtedness incurred to "purchase" or "carry" "margin stock"
within the respective meanings of each of the quoted terms under Regulation U of
the Board of  Governors  of the Federal  Reserve  System as now and from time to
time hereafter in effect.

          6.16 Financing Right of First Refusal.

          (a) The  Company  hereby  grants  to the  Purchaser  a right  of first
refusal to provide any  Additional  Financing (as defined below) to be issued by
the Company and/or any of its  Subsidiaries,  subject to the following terms and
conditions.  From and  after the date  hereof,  prior to the  incurrence  of any
additional  indebtedness  and/or the sale or issuance of any equity interests of
the Company or any of its Subsidiaries (an "Additional Financing"),  the Company
and/or any  Subsidiary  of the  Company,  as the case may be,  shall  notify the
Purchaser  of  its  intention  to  enter  into  such  Additional  Financing.  In
connection therewith, the Company and/or the applicable Subsidiary thereof shall
submit a fully  executed  term sheet (a "Proposed  Term Sheet") to the Purchaser
setting forth the terms, conditions and pricing of any such Additional Financing
(such  financing to be negotiated on "arm's  length" terms and the terms thereof
to be  negotiated  in good  faith)  proposed  to be entered  into by the Company
and/or  such  Subsidiary.  The  Purchaser  shall  have  the  right,  but not the
obligation,  to deliver its own proposed term sheet (the "Purchaser Term Sheet")
setting forth the terms and conditions  upon which Purchaser would be willing to
provide such Additional

                                       22

Financing to the Company and/or such Subsidiary.  The Purchaser Term Sheet shall
contain terms no less favorable to the Company and/or such Subsidiary than those
outlined in Proposed Term Sheet. The Purchaser shall deliver such Purchaser Term
Sheet within ten business days of receipt of each such  Proposed Term Sheet.  If
the  provisions  of the  Purchaser  Term Sheet are at least as  favorable to the
Company  and/or such  Subsidiary,  as the case may be, as the  provisions of the
Proposed Term Sheet,  the Company  and/or such  Subsidiary  shall enter into and
consummate the Additional  Financing  transaction outlined in the Purchaser Term
Sheet.

          (b) The Company  will not,  and will not permit its  Subsidiaries  to,
agree,  directly or  indirectly,  to any  restriction  with any person or entity
which limits the ability of the Purchaser to consummate an Additional  Financing
with the Company or any of its Subsidiaries.

          6.17 Additional Investment.

          The  Company  agrees that the  Purchaser  shall have the right (at its
sole  option),  on or prior to the date which is 120 days  following the Closing
Date,  to issue an  additional  note to the  Company in an  aggregate  principal
amount of up to $1,000,000 on the same terms and conditions (including,  without
limitation,  the same interest rate,  Fixed  Conversion  Price of $0.10 (as such
term is  defined  in the  Note),  proportionate  warrant  coverage  (at the same
exercise prices), a proportionate amortization schedule, etc.) set forth in, and
pursuant to  substantially  similar  documentation  as, this  Agreement  and the
Related Agreements.



     7. Covenants of the Purchaser.

     The Purchaser covenants and agrees with the Company as follows:

          7.1 Confidentiality.

          The Purchaser  agrees that it will not disclose,  and will not include
in any public announcement,  the name of the Company, unless expressly agreed to
by the  Company  or unless  and until  such  disclosure  is  required  by law or
applicable regulation, and then only to the extent of such requirement.

          7.2 Non-Public Information.

          The  Purchaser  agrees  not to effect  any sales in the  shares of the
Company's Common Stock while in possession of material,  non-public  information
regarding the Company if such sales would violate applicable securities law.

          7.3 Limitation on Acquisition of Common Stock of the Company.

          Notwithstanding  anything to the contrary contained in this Agreement,
any Related  Agreement,  any document,  instrument or agreement  entered into in
connection with the transactions contemplated hereby or any document, instrument
or agreement entered into in connection with any other transaction  entered into
by and between the Purchaser and the Company (and/or  subsidiaries or affiliates
of  the  Company),  the  Purchaser  shall  not  acquire  stock  in  the  Company
(including,  without  limitation,   pursuant  to  a  contract  to  purchase,  by
exercising an option or warrant, by converting any other security or instrument,
by acquiring or exercising any other right to acquire,  shares of stock or other
security convertible into shares of stock in the Company, or otherwise, and such
options,  warrants,  conversion or other rights shall not be exercisable) to the
extent such stock acquisition  would cause any interest  (including any original
issue  discount)  payable  by the  Company  to the  Purchaser  not to qualify as
portfolio  interest,  within the meaning of Section  881(c)(2)  of the  Internal
Revenue Code of 1986, as amended (the "Code") by reason of Section 881(c)(3) of

                                       23

the Code,  taking into account the  constructive  ownership  rules under Section
871(h)(3)(C)  of the  Code  (the  "Stock  Acquisition  Limitation").  The  Stock
Acquisition  Limitation  shall  automatically  become null and void  without any
notice to Company upon the earlier to occur of either (a) Company's  delivery to
Laurus  of a Notice  of  Redemption  or (b) an Event of  Default  under,  and as
defined in, the Note,  so long as, at the time of the  occurrence of an Event of
Default,  the average  closing  price of  Company's  Common Stock as reported by
Bloomberg,  L.P. on the Principal Market for the immediately  preceding five (5)
trading days is greater than or equal to 130% of the Fixed  Conversion  Price at
such time.



     8. Covenants of the Company and Purchaser Regarding Indemnification.

          8.1 Company Indemnification.

          The Company agrees to indemnify,  hold harmless,  reimburse and defend
the Purchaser, each of the Purchaser's officers,  directors, agents, affiliates,
control persons, and principal  shareholders,  against any claim, cost, expense,
liability,  obligation,  loss or damage (including reasonable legal fees) of any
nature,  incurred by or imposed upon the Purchaser which results,  arises out of
or is  based  upon:  (i)  any  misrepresentation  by the  Company  or any of its
Subsidiaries or breach of any warranty by the Company or any of its Subsidiaries
in this Agreement,  any other Related  Agreement or in any exhibits or schedules
attached  hereto or  thereto;  or (ii) any breach or default in  performance  by
Company  or  any of  its  Subsidiaries  of any  covenant  or  undertaking  to be
performed  by  Company  or any of its  Subsidiaries  hereunder,  under any other
Related  Agreement or any other agreement entered into by the Company and/or any
of its Subsidiaries and Purchaser relating hereto or thereto.

          8.2 Purchaser's Indemnification.

          Purchaser agrees to indemnify, hold harmless, reimburse and defend the
Company  and each of the  Company's  officers,  directors,  agents,  affiliates,
control  persons and  principal  shareholders,  at all times  against any claim,
cost, expense, liability, obligation, loss or damage (including reasonable legal
fees) of any nature,  incurred by or imposed  upon the  Company  which  results,
arises out of or is based upon: (i) any misrepresentation by Purchaser or breach
of any warranty by  Purchaser in this  Agreement or in any exhibits or schedules
attached  hereto or any  Related  Agreement;  or (ii) any  breach or  default in
performance  by  Purchaser  of any  covenant or  undertaking  to be performed by
Purchaser  hereunder,  or any other  agreement  entered  into by the Company and
Purchaser relating hereto.

          8.3 SMEI Acquisition.

          Immediately upon consummation of the Acquisition, (x) SMEI shall enter
into an  assumption  and/or  joinder  agreement  and become  party to the Master
Security  Agreement,  the Stock Pledge Agreement and the Subsidiary Guaranty and
(y) SMEI shall be required to satisfy each  condition of this  Agreement and the
Related  Agreements as if such  Subsidiary were a Subsidiary on the Closing Date
(including,  without  limitation,  the issuance of an opinion  acceptable to the
Purchaser from the Company's external legal counsel).

                                       24


          8.4 Termination of Inactive Subsidiaries.

          The Company shall cause the termination of the corporate  existence of
each of M3  Acquisition  Corp.  and  SciDyn  Corp no  later  than  the  45th day
immediately following the date hereof.

     9. Conversion of Convertible Note.

          9.1 Mechanics of Conversion.

          (a)       Provided  the  Purchaser  has  notified  the  Company of the
                    Purchaser's  intention  to sell the Note Shares and the Note
                    Shares are included in an effective  registration  statement
                    or are otherwise  exempt from  registration  when sold:  (i)
                    upon the conversion of the Note or part thereof, the Company
                    shall,  at its own cost  and  expense,  take  all  necessary
                    action  (including  the  issuance  of an  opinion of counsel
                    reasonably  acceptable to the Purchaser  following a request
                    by the  Purchaser)  to assure  that the  Company's  transfer
                    agent shall issue  shares of the  Company's  Common Stock in
                    the name of the  Purchaser  (or its  nominee)  or such other
                    persons as designated  by the  Purchaser in accordance  with
                    Section  9.1(b)  hereof  and  in  such  denominations  to be
                    specified  representing  the number of Note Shares  issuable
                    upon such conversion;  and (ii) the Company warrants that no
                    instructions other than these instructions have been or will
                    be given to the transfer agent of the Company's Common Stock
                    and that  after the  Effectiveness  Date (as  defined in the
                    Registration  Rights  Agreement) the Note Shares issued will
                    be freely  transferable  subject to the prospectus  delivery
                    requirements  of the  Securities  Act and the  provisions of
                    this  Agreement,  and will not contain a legend  restricting
                    the resale or transferability of the Note Shares.

          (b)       Purchaser  will give notice of its  decision to exercise its
                    right to convert the Note or part thereof by  telecopying or
                    otherwise delivering an executed and completed notice of the
                    number of shares to be converted to the Company (the "Notice
                    of  Conversion").  The  Purchaser  will not be  required  to
                    surrender the Note until the Purchaser  receives a credit to
                    the account of the Purchaser's prime broker through the DWAC
                    system (as defined below),  representing  the Note Shares or
                    until the Note has been fully satisfied.  Each date on which
                    a Notice of  Conversion  is  telecopied  or delivered to the
                    Company in accordance  with the  provisions  hereof shall be
                    deemed a  "Conversion  Date."  Pursuant  to the terms of the
                    Notice of Conversion, the Company will issue instructions to
                    the  transfer  agent  accompanied  by an  opinion of counsel
                    within one (1)  business  day of the date of the delivery to
                    the Company of the Notice of Conversion  and shall cause the
                    transfer agent to transmit the certificates representing the
                    Conversion  Shares to the Holder by crediting the account of
                    the  Purchaser's  prime  broker  with the  Depository  Trust
                    Company  ("DTC")  through  its  Deposit   Withdrawal   Agent
                    Commission  ("DWAC")  system  within three (3) business days
                    after  receipt by the  Company  of the Notice of  Conversion
                    (the "Delivery Date").

          (c)       The Company  understands that a delay in the delivery of the
                    Note  Shares  in the form  required  pursuant  to  Section 9
                    hereof  beyond the  Delivery  Date could  result in economic
                    loss to the  Purchaser.  In the event that the Company fails
                    to direct its  transfer  agent to deliver the Note Shares to
                    the  Purchaser via the DWAC system within the time frame set
                    forth in Section  9.1(b)  above and the Note  Shares are not
                    delivered  to  the  Purchaser  by  the  Delivery   Date,  as
                    compensation  to the  Purchaser  for such loss,  the Company
                    agrees  to pay  late  payments  to the  Purchaser  for  late
                    issuance of the Note Shares in the form required pursuant to
                    Section 9 hereof upon  conversion  of the Note in the amount
                    equal to the greater of: (i) $500 per business day after the
                    Delivery Date; or (ii) the  Purchaser's  actual damages from
                    such delayed delivery.  Notwithstanding  the foregoing,  the
                    Company will not owe the  Purchaser any late payments if the
                    delay in the delivery of the Note Shares beyond the Delivery
                    Date is solely  out of the  control of the  Company  and the
                    Company is  actively  trying to cure the cause of the delay.
                    The  Company  shall pay any  payments  incurred  under  this
                    Section in immediately  available  funds upon demand and, in
                    the  case  of  actual  damages,  accompanied  by  reasonable
                    documentation   of  the   amount  of  such   damages.   Such
                    documentation  shall  show the  number  of  shares of Common

                                       25

                    Stock the Purchaser is forced to purchase (in an open market
                    transaction) which the Purchaser  anticipated receiving upon
                    such  conversion,  and shall be  calculated as the amount by
                    which (A) the  Purchaser's  total purchase price  (including
                    customary brokerage  commissions,  if any) for the shares of
                    Common  Stock  so  purchased   exceeds  (B)  the   aggregate
                    principal and/or interest amount of the Note, for which such
                    Conversion Notice was not timely honored.

Nothing  contained herein or in any document  referred to herein or delivered in
connection  herewith  shall be deemed to  establish  or require the payment of a
rate of  interest  or other  charges  in  excess  of the  maximum  permitted  by
applicable law. In the event that the rate of interest or dividends  required to
be paid or other charges  hereunder  exceed the maximum amount permitted by such
law, any payments in excess of such maximum  shall be credited  against  amounts
owed by the Company to a Purchaser and thus refunded to the Company.

     10. Registration Rights.

          10.1   Registration   Rights   Granted.   The  Company  hereby  grants
registration rights to the Purchaser pursuant to a Registration Rights Agreement
dated as of even date herewith between the Company and the Purchaser.

                                       26


          10.2 Offering Restrictions.

          Except as  previously  disclosed in the SEC Reports or in the Exchange
Act Filings,  or stock or stock options granted to employees or directors of the
Company (these exceptions  hereinafter referred to as the "Excepted Issuances"),
neither  the  Company  nor  any of its  Subsidiaries  will,  prior  to the  full
repayment  or  conversion  of the Note  (together  with all  accrued  and unpaid
interest  and fees  related  thereto),  (x) enter into any equity line of credit
agreement  or similar  agreement  or (y) issue,  or enter into any  agreement to
issue, any securities with a variable/floating conversion and/or pricing feature
which are or could be (by conversion or  registration)  free-trading  securities
(i.e.  common  stock  subject  to  a  registration  statement)  (the  "Exclusion
Period").

     11. Miscellaneous.

          11.1 Governing Law.

          THIS  AGREEMENT  AND EACH RELATED  AGREEMENT  SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK,  WITHOUT REGARD
TO PRINCIPLES OF CONFLICTS OF LAWS.  ANY ACTION  BROUGHT BY EITHER PARTY AGAINST
THE OTHER  CONCERNING THE  TRANSACTIONS  CONTEMPLATED BY THIS AGREEMENT AND EACH
RELATED  AGREEMENT  SHALL BE BROUGHT  ONLY IN THE STATE COURTS OF NEW YORK OR IN
THE  FEDERAL  COURTS  LOCATED  IN THE STATE OF NEW YORK.  BOTH  PARTIES  AND THE
INDIVIDUALS EXECUTING THIS AGREEMENT AND THE RELATED AGREEMENTS ON BEHALF OF THE
COMPANY  AGREE TO SUBMIT TO THE  JURISDICTION  OF SUCH COURTS AND WAIVE TRIAL BY
JURY. IN THE EVENT THAT ANY PROVISION OF THIS AGREEMENT OR ANY RELATED AGREEMENT
DELIVERED  IN  CONNECTION   HEREWITH  IS  INVALID  OR  UNENFORCEABLE  UNDER  ANY
APPLICABLE  STATUTE  OR  RULE  OF LAW,  THEN  SUCH  PROVISION  SHALL  BE  DEEMED
INOPERATIVE  TO THE EXTENT THAT IT MAY  CONFLICT  THEREWITH  AND SHALL BE DEEMED
MODIFIED TO CONFORM WITH SUCH STATUTE OR RULE OF LAW. ANY SUCH  PROVISION  WHICH
MAY PROVE INVALID OR  UNENFORCEABLE  UNDER ANY LAW SHALL NOT AFFECT THE VALIDITY
OR  ENFORCEABILITY  OF ANY OTHER  PROVISION  OF THIS  AGREEMENT  OR ANY  RELATED
AGREEMENT.

          11.2 Survival.

The representations, warranties, covenants and agreements made
herein shall survive any investigation made by the Purchaser and the closing of
the transactions contemplated hereby to the extent provided therein. All
statements as to factual matters contained in any certificate or other
instrument delivered by or on behalf of the Company pursuant hereto in
connection with the transactions contemplated hereby shall be deemed to be
representations and warranties by the Company hereunder solely as of the date of
such certificate or instrument.

          11.3 Successors.

                                       27


          Except as otherwise  expressly  provided herein, the provisions hereof
shall inure to the  benefit  of, and be binding  upon,  the  successors,  heirs,
executors  and  administrators  of the  parties  hereto  and shall  inure to the
benefit  of and be  enforceable  by each  person  who  shall be a holder  of the
Securities  from time to time,  other than the holders of Common Stock which has
been sold by the  Purchaser  pursuant to Rule 144 or an  effective  registration
statement.  Purchaser may not assign its rights hereunder to a competitor of the
Company.

          11.4 Entire Agreement.

          This  Agreement,  the Related  Agreements,  the exhibits and schedules
hereto and thereto and the other documents  delivered pursuant hereto constitute
the full and entire  understanding and agreement between the parties with regard
to the subjects hereof and no party shall be liable or bound to any other in any
manner by any  representations,  warranties,  covenants and agreements except as
specifically set forth herein and therein.

          11.5 Severability.

          In case any  provision of the Agreement  shall be invalid,  illegal or
unenforceable,  the  validity,  legality  and  enforceability  of the  remaining
provisions shall not in any way be affected or impaired thereby.

          11.6 Amendment and Waiver.

          (a)       This  Agreement  may be  amended or  modified  only upon the
                    written consent of the Company and the Purchaser.

          (b)       The  obligations  of  the  Company  and  the  rights  of the
                    Purchaser  under this  Agreement may be waived only with the
                    written consent of the Purchaser.

          (c)       The  obligations  of the  Purchaser  and the  rights  of the
                    Company  under this  Agreement  may be waived  only with the
                    written consent of the Company.

          11.7 Delays or Omissions.

          It is agreed that no delay or omission to exercise any right, power or
remedy  accruing to any party,  upon any  breach,  default or  noncompliance  by
another party under this Agreement or the Related  Agreements,  shall impair any
such right,  power or remedy,  nor shall it be  construed  to be a waiver of any
such breach, default or noncompliance,  or any acquiescence therein, or of or in
any similar breach, default or noncompliance thereafter occurring. All remedies,
either  under this  Agreement  or the Related  Agreements,  by law or  otherwise
afforded to any party, shall be cumulative and not alternative.

          11.8 Notices.

          All notices  required or permitted  hereunder  shall be in writing and
shall be deemed effectively given:

                                       28



          (a)       upon personal delivery to the party to be notified;

          (b)       when  sent by  confirmed  facsimile  if sent  during  normal
                    business  hours of the  recipient,  if not, then on the next
                    business day;

          (c)       three (3) business days after having been sent by registered
                    or  certified  mail,  return  receipt   requested,   postage
                    prepaid; or

          (d)       one (1)  day  after  deposit  with a  nationally  recognized
                    overnight  courier,   specifying  next  day  delivery,  with
                    written verification of receipt.

All communications shall be sent as follows:

         If to the Company, to:         Science Dynamics Corporation
                                        7150 N. Park Drive, Suite 500
                                        Pennsauken, NJ 08109

                                        Attention: Chief Financial Officer
                                        Facsimile:        (856) 910-1811

                                        with a copy to:

                                        Sichenzia Ross Friedman Ference LLP
                                        1065 Avenue of theAmericas, 21st Floor
                                        New York, NY 10018
                                        Attention: Gregory Sichenzia, Esq.
                                        Facsimile:       (212) 930-9725

         If to the Purchaser, to:       Laurus Master Fund, Ltd.
                                        c/o M&C Corporate Services Limited
                                        P.O. Box 309 GT
                                        Ugland House
                                        George Town
                                        South Church Street
                                        Grand Cayman, Cayman Islands
                                        Facsimile:        345-949-8080

                                        with a copy to:

                                        John E. Tucker, Esq.
                                        825 Third Avenue 14th Floor
                                        New York, NY 10022
                                        Facsimile:        212-541-4434

or at such  other  address as the  Company or the  Purchaser  may  designate  by
written notice to the other parties hereto given in accordance herewith.

                                       29


          11.9 Attorneys' Fees.

          In the event  that any suit or action is  instituted  to  enforce  any
provision in this  Agreement,  the  prevailing  party in such  dispute  shall be
entitled  to  recover  from the losing  party all fees,  costs and  expenses  of
enforcing  any right of such  prevailing  party  under or with  respect  to this
Agreement,  including,  without limitation, such reasonable fees and expenses of
attorneys and accountants,  which shall include,  without limitation,  all fees,
costs and expenses of appeals.

          11.10 Titles and Subtitles.

          The titles of the sections and  subsections  of this Agreement are for
convenience  of reference  only and are not to be considered in construing  this
Agreement.

          11.11 Facsimile Signatures; Counterparts.

          This  Agreement  may be executed by  facsimile  signatures  and in any
number of  counterparts,  each of which shall be an  original,  but all of which
together shall constitute one instrument.

          11.12 Broker's Fees.

          Except  as set forth on  Schedule  11.12  hereof,  each  party  hereto
represents and warrants that no agent, broker, investment banker, person or firm
acting on behalf of or under the  authority  of such party  hereto is or will be
entitled to any  broker's or finder's  fee or any other  commission  directly or
indirectly in connection with the transactions  contemplated  herein. Each party
hereto further  agrees to indemnify  each other party for any claims,  losses or
expenses incurred by such other party as a result of the  representation in this
Section 11.12 being untrue.

          11.13 Construction.

          Each party  acknowledges  that its legal counsel  participated  in the
preparation  of  this  Agreement  and the  Related  Agreements  and,  therefore,
stipulates  that the rule of  construction  that  ambiguities are to be resolved
against the drafting  party shall not be applied in the  interpretation  of this
Agreement to favor any party against the other.





            [the remainder of this page is intentionally left blank]






                                       30




     IN WITNESS  WHEREOF,  the  parties  hereto  have  executed  the  SECURITIES
PURCHASE AGREEMENT as of the date set forth in the first paragraph hereof.

COMPANY:                                         PURCHASER:

SCIENCE DYNAMICS CORPORATION                     LAURUS MASTER FUND, LTD.


By:                                          By:
         -------------------------------             ---------------------------
 Name:                                       Name:
         ------------------------------              ---------------------------
Title:                                       Title:
         -------------------------------             ---------------------------





                                       31




                                    EXHIBIT A

                            FORM OF CONVERTIBLE NOTE



                                       A-1





                                    EXHIBIT B

                                 FORM OF WARRANT


                                       B-1



                                    EXHIBIT C

                                 FORM OF OPINION

     1. Each of the Company and each of its  Subsidiaries is a corporation  duly
incorporated,  validly existing and in good standing under the laws of the State
of Delaware and has all requisite  corporate power and authority to own, operate
and  lease  its  properties  and to carry  on its  business  as it is now  being
conducted.

     2.  Each of the  Company  and each of its  Subsidiaries  has the  requisite
corporate  power and authority to execute,  deliver and perform its  obligations
under the Agreement and the Related Agreements. All corporate action on the part
of the Company and each of its  Subsidiaries  and its  officers,  directors  and
stockholders  necessary  has  been  taken  for:  (i)  the  authorization  of the
Agreement and the Related  Agreements and the  performance of all obligations of
the Company and each of its Subsidiaries thereunder; and (ii) the authorization,
sale,  issuance and delivery of the Securities pursuant to the Agreement and the
Related Agreements. The Note Shares and the Warrant Shares, when issued pursuant
to and in accordance with the terms of the Agreement and the Related  Agreements
and upon delivery  shall be validly issued and  outstanding,  fully paid and non
assessable.

     3. The execution,  delivery and performance by each of the Company and each
of its Subsidiaries of the Agreement and the Related Agreements to which it is a
party and the consummation of the  transactions on its part  contemplated by any
thereof,  will not,  with or without the giving of notice or the passage of time
or both:

          (a) Violate the provisions of their respective Charter or bylaws; or

          (b) Violate any judgment,  decree, order or award of any court binding
upon the Company or any of its Subsidiaries; or

          (c) Violate any [insert  jurisdictions  in which counsel is qualified]
or federal law

     4. The  Agreement and the Related  Agreements  will  constitute,  valid and
legally binding  obligations of each of the Company and each of its Subsidiaries
(to the extent such person is a party thereto), and are enforceable against each
of the Company and each of its  Subsidiaries in accordance with their respective
terms, except:

                    (a)  as  limited  by  applicable   bankruptcy,   insolvency,
          reorganization,  moratorium  or  other  laws  of  general  application
          affecting enforcement of creditors' rights; and

                    (b)  general   principles   of  equity  that   restrict  the
          availability of equitable or legal remedies.

     5. To such  counsel's  knowledge,  the sale of the Note and the  subsequent
conversion of the Note into Note Shares are not subject to any preemptive rights
or rights of first refusal that have not been properly  waived or complied with.
To such counsel's knowledge, the sale of the Warrant and the subsequent exercise
of the Warrant for Warrant Shares are not subject to any  preemptive  rights or,

                                       C-1


to such counsel's knowledge, rights of first refusal that have not been properly
waived or complied with.

     6.  Assuming  the accuracy of the  representations  and  warranties  of the
Purchaser  contained  in the  Agreement,  the offer,  sale and  issuance  of the
Securities on the Closing Date will be exempt from the registration requirements
of the Securities Act. To such counsel's knowledge, neither the Company, nor any
of its affiliates, nor any person acting on its or their behalf, has directly or
indirectly  made any offers or sales of any security or solicited  any offers to
buy and  security  under  circumstances  that would  cause the  offering  of the
Securities  pursuant to the Agreement or any Related  Agreement to be integrated
with prior  offerings  by the Company for purposes of the  Securities  Act which
would prevent the Company from selling the Securities pursuant to Rule 506 under
the Securities  Act, or any  applicable  exchange-related  stockholder  approval
provisions.

     7. There is no action,  suit,  proceeding or  investigation  pending or, to
such counsel's knowledge, currently threatened against the Company or any of its
Subsidiaries  that prevents the right of the Company or any of its  Subsidiaries
to enter into this Agreement or any of the Related Agreements,  or to consummate
the transactions  contemplated thereby. To such counsel's knowledge, the Company
is not a party or subject to the  provisions  of any  order,  writ,  injunction,
judgment or decree of any court or government agency or instrumentality;  nor is
there any action,  suit,  proceeding or investigation  by the Company  currently
pending or which the Company intends to initiate.

     8. The terms and provisions of the Master Security  Agreement and the Stock
Pledge  Agreement  create a valid security  interest in favor of Laurus,  in the
respective  rights,  title and interests of the Company and its  Subsidiaries in
and to the Collateral (as defined in each of the Master  Security  Agreement and
the Stock Pledge Agreement).  Each UCC-1 Financing  Statement naming the Company
or any  Subsidiary  thereof as debtor and Laurus as secured  party are in proper
form for filing and  assuming  that such UCC-1  Financing  Statements  have been
filed with the  Secretary of State of Delaware,  the security  interest  created
under the  Master  Security  Agreement  will  constitute  a  perfected  security
interest under the Uniform  Commercial Code in favor of Laurus in respect of the
Collateral that can be perfected by filing a financing  statement.  After giving
effect to the  delivery  to Laurus of the stock  certificates  representing  the
ownership  interests of each Subsidiary of the Company  (together with effective
endorsements)  and assuming  the  continued  possession  by Laurus of such stock
certificates in the State of New York, the security interest created in favor of
Laurus  under the Stock Pledge  Agreement  constitutes  a valid and  enforceable
first perfected security interest in such ownership  interests (and the proceeds
thereof) in favor of Laurus,  subject to no other security interest. No filings,
registrations  or  recordings  are required in order to perfect (or maintain the
perfection or priority of) the security  interest created under the Stock Pledge
Agreement in respect of such ownership interests. .


                                      C-2











                                    EXHIBIT D

                            FORM OF ESCROW AGREEMENT


                                       D-3