REGISTRATION RIGHTS AGREEMENT

     This Registration  Rights 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.  (the
"Purchaser").

     This Agreement is made pursuant to the Securities Purchase Agreement, dated
as of the date hereof, by and between the Purchaser and the Company (as amended,
modified  or  supplemented   from  time  to  time,  the   "Securities   Purchase
Agreement"), and pursuant to the Note and the Warrants referred to therein.

     The Company and the Purchaser hereby agree as follows:

     1.  Definitions.  Capitalized  terms used and not otherwise  defined herein
that are defined in the Securities  Purchase  Agreement  shall have the meanings
given  such  terms  in the  Securities  Purchase  Agreement.  As  used  in  this
Agreement, the following terms shall have the following meanings:

     "Commission" means the Securities and Exchange Commission.

     "Common Stock" means shares of the Company's  common stock, par value $0.01
per share.

     "Effectiveness  Date" means (i) with  respect to the  initial  Registration
Statement required to be filed hereunder,  a date no later than ninety (90) days
following the date hereof and (ii) with respect to each additional  Registration
Statement required to be filed hereunder,  a date no later than thirty (30) days
following the applicable Filing Date.

     "Effectiveness Period" shall have the meaning set forth in Section 2(a).

     "Exchange Act" means the Securities  Exchange Act of 1934, as amended,  and
any successor statute.

     "Filing Date" means, with respect to (i) the initial Registration Statement
required to be filed hereunder,  a date no later than thirty (30) days following
the date hereof and (ii) with respect to shares of Common Stock  issuable to the
Holder as a result of adjustments to the Fixed Conversion Price made pursuant to
Section 3.4 of the Secured  Convertible Term Note or Section 4 of the Warrant or
otherwise,  thirty (30) days after the occurrence  such event or the date of the
adjustment of the Fixed Conversion Price.


     "Holder" or  "Holders"  means the  Purchaser  or any of its  affiliates  or
transferees to the extent any of them hold Registrable Securities.

     "Indemnified Party" shall have the meaning set forth in Section 5(c).

     "Indemnifying Party" shall have the meaning set forth in Section 5(c).

     "Note" has the meaning set forth in the Securities Purchase Agreement.

     "Proceeding"  means an action,  claim,  suit,  investigation  or proceeding
(including,  without limitation, an investigation or partial proceeding, such as
a deposition), whether commenced or threatened.

     "Prospectus"  means the prospectus  included in the Registration  Statement
(including,  without  limitation,  a prospectus  that  includes any  information
previously omitted from a prospectus filed as part of an effective  registration
statement in reliance upon Rule 430A  promulgated  under the Securities Act), as
amended or supplemented by any prospectus supplement,  with respect to the terms
of the  offering of any  portion of the  Registrable  Securities  covered by the
Registration  Statement,  and  all  other  amendments  and  supplements  to  the
Prospectus,  including post-effective  amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

     "Registrable  Securities"  means the shares of Common Stock issued upon the
conversion of the Note and issuable upon exercise of the Warrants.

     "Registration  Statement" means each registration  statement required to be
filed  hereunder,  including the Prospectus,  amendments and supplements to such
registration   statement  or  Prospectus,   including  pre-  and  post-effective
amendments,  all exhibits thereto, and all material incorporated by reference or
deemed to be incorporated by reference in such registration statement.

     "Rule 144" means Rule 144  promulgated  by the  Commission  pursuant to the
Securities  Act, as such Rule may be amended  from time to time,  or any similar
rule or regulation  hereafter adopted by the Commission having substantially the
same effect as such Rule.

     "Rule 415" means Rule 415  promulgated  by the  Commission  pursuant to the
Securities  Act, as such Rule may be amended  from time to time,  or any similar
rule or regulation  hereafter adopted by the Commission having substantially the
same effect as such Rule.

     "Rule 424" means Rule 424  promulgated  by the  Commission  pursuant to the
Securities  Act, as such Rule may be amended  from time to time,  or any similar
rule or regulation  hereafter adopted by the Commission having substantially the
same effect as such Rule.

     "Securities  Act" means the  Securities  Act of 1933,  as amended,  and any
successor statute.

     "Securities  Purchase  Agreement"  means the agreement  between the parties
hereto calling for the issuance by the Company of $2,000,000 of convertible Note
plus Warrants.

     "Trading Market" means any of the NASD OTC Bulletin Board,  NASDAQ SmallCap
Market,  the Nasdaq National Market, the American Stock Exchange or the New York
Stock Exchange.

     "Warrants" means the Common Stock purchase  warrants issued pursuant to the
Securities Purchase Agreement.

     2. Registration.

          (a) On or prior to the Filing Date the Company  shall prepare and file
     with the  Commission a  Registration  Statement  covering  the  Registrable
     Securities  for an offering to be made on a  continuous  basis  pursuant to
     Rule 415. The  Registration  Statement shall be on Form SB-2 (except if the
     Company  is not then  eligible  to  register  for  resale  the  Registrable
     Securities  on Form  SB-2,  in which  case  such  registration  shall be on
     another appropriate form in accordance  herewith).  The Company shall cause
     the  Registration  Statement to become  effective  and remain  effective as
     provided herein. The Company shall use its reasonable commercial efforts to
     cause  the  Registration  Statement  to be  declared  effective  under  the
     Securities Act as promptly as possible after the filing thereof, but in any
     event no later  than the  Effectiveness  Date.  The  Company  shall use its
     reasonable   commercial   efforts  to  keep  the   Registration   Statement
     continuously effective under the Securities Act until the date which is the
     earlier date of when (i) all Registrable  Securities have been sold or (ii)
     all Registrable  Securities may be sold  immediately  without  registration
     under the Securities Act and without volume  restrictions  pursuant to Rule
     144(k),  as determined by the counsel to the Company  pursuant to a written
     opinion  letter to such effect,  addressed and  acceptable to the Company's
     transfer agent and the affected Holders (the "Effectiveness Period").

          (b) If: (i) the Registration Statement is not filed on or prior to the
     Filing Date; (ii) the Registration  Statement is not declared  effective by
     the  Commission by the  Effectiveness  Date;  (iii) after the  Registration
     Statement  is filed with and  declared  effective  by the  Commission,  the
     Registration  Statement ceases to be effective (by suspension or otherwise)
     as to all  Registrable  Securities to which it is required to relate at any
     time prior to the  expiration of the  Effectiveness  Period  (without being
     succeeded  immediately by an additional  registration  statement  filed and
     declared  effective) for a period of time which shall exceed 30 days in the
     aggregate per year or more than 20 consecutive  calendar days (defined as a
     period of 365 days  commencing  on the date the  Registration  Statement is
     declared  effective);  or (iv) the Common Stock is not listed or quoted, or
     is suspended  from trading on any Trading  Market for a period of three (3)
     consecutive  Trading Days (provided the Company shall not have been able to
     cure such trading  suspension  within 30 days of the notice thereof or list
     the Common Stock on another  Trading  Market);  (any such failure or breach
     being referred to as an "Event," and for purposes of clause (i) or (ii) the
     date on which such Event  occurs,  or for purposes of clause (iii) the date
     which  such 30 day or 20  consecutive  day  period  (as the case may be) is
     exceeded,  or for  purposes of clause (iv) the date on which such three (3)
     Trading Day period is exceeded,  being referred to as "Event  Date"),  then
     until the applicable  Event is cured,  the Company shall pay to each Holder
     an amount in cash,  as  liquidated  damages and not as a penalty,  equal to
     2.0% for each thirty (30) day period  (prorated  for partial  periods) on a
     daily basis of the original  principal amount of the Note. While such Event
     continues,  such liquidated  damages shall be paid not less often than each
     thirty  (30)  days.  Any unpaid  liquidated  damages as of the date when an
     Event has been cured by the  Company  shall be paid  within  three (3) days
     following the date on which such Event has been cured by the Company.

          (c) Within three business days of the Effectiveness  Date, the Company
     shall cause its  counsel to issue a blanket  opinion  substantially  in the
     form attached  hereto as Exhibit A, to the transfer  agent stating that the
     shares  are  subject  to an  effective  registration  statement  and can be
     reissued free of restrictive  legend upon notice of a sale by the Purchaser
     and  confirmation by the Purchaser that it has complied with the prospectus
     delivery  requirements,  provided  that the  Company  has not  advised  the
     transfer  agent orally or in writing  that the opinion has been  withdrawn.
     Copies of the  blanket  opinion  required  by this  Section  2(c)  shall be
     delivered to the Purchaser within the time frame set forth above.


     3. Registration Procedures.  If and whenever the Company is required by the
provisions hereof to effect the registration of any Registrable Securities under
the Securities Act, the Company will, as expeditiously as possible:

          (a) prepare and file with the  Commission the  Registration  Statement
     with  respect  to such  Registrable  Securities,  respond  as  promptly  as
     possible to any comments  received  from the  Commission,  and use its best
     efforts to cause the Registration  Statement to become and remain effective
     for the Effectiveness  Period with respect thereto, and promptly provide to
     the  Purchaser  copies of all  filings  and  Commission  letters of comment
     relating thereto;

          (b)  prepare  and  file  with  the  Commission   such  amendments  and
     supplements  to the  Registration  Statement  and  the  Prospectus  used in
     connection  therewith as may be necessary to comply with the  provisions of
     the  Securities  Act with  respect to the  disposition  of all  Registrable
     Securities  covered  by  the  Registration   Statement  and  to  keep  such
     Registration  Statement effective until the expiration of the Effectiveness
     Period;

          (c) furnish to the Purchaser such number of copies of the Registration
     Statement and the Prospectus  included therein  (including each preliminary
     Prospectus)  as the  Purchaser  reasonably  may request to  facilitate  the
     public sale or disposition  of the  Registrable  Securities  covered by the
     Registration Statement;

          (d) use its commercially reasonable efforts to register or qualify the
     Purchaser's  Registrable  Securities covered by the Registration  Statement
     under the  securities or "blue sky" laws of such  jurisdictions  within the
     United States as the Purchaser may reasonably request,  provided,  however,
     that the  Company  shall not for any such  purpose be  required  to qualify
     generally to transact business as a foreign corporation in any jurisdiction
     where it is not so qualified or to consent to general service of process in
     any such jurisdiction;

          (e)  list  the  Registrable  Securities  covered  by the  Registration
     Statement  with any  securities  exchange on which the Common  Stock of the
     Company is then listed;

          (f)  immediately  notify the  Purchaser  at any time when a Prospectus
     relating  thereto is required to be delivered  under the Securities Act, of
     the  happening of any event of which the Company has  knowledge as a result
     of which the Prospectus contained in such Registration  Statement,  as then
     in effect,  includes  an untrue  statement  of a material  fact or omits to
     state a material  fact  required to be stated  therein or necessary to make
     the statements  therein not misleading in light of the  circumstances  then
     existing; and

          (g) make  available for  inspection by the Purchaser and any attorney,
     accountant  or  other  agent  retained  by  the  Purchaser,   all  publicly
     available,   non-confidential   financial  and  other  records,   pertinent
     corporate documents and properties of the Company,  and cause the Company's
     officers,  directors  and  employees  to  supply  all  publicly  available,
     non-confidential   information   reasonably   requested  by  the  attorney,
     accountant or agent of the Purchaser.

     4. Registration Expenses. All expenses relating to the Company's compliance
with Sections 2 and 3 hereof,  including,  without limitation,  all registration
and filing  fees,  printing  expenses,  fees and  disbursements  of counsel  and
independent  public  accountants for the Company,  fees and expenses  (including
reasonable  counsel  fees)  incurred in  connection  with  complying  with state
securities  or "blue  sky"  laws,  fees of the  NASD,  transfer  taxes,  fees of
transfer  agents and  registrars,  fees of, and  disbursements  incurred by, one
counsel for the Holders (to the extent such counsel is required due to Company's
failure to meet any of its  obligations  hereunder),  are  called  "Registration
Expenses".  All  selling  commissions  applicable  to the  sale  of  Registrable
Securities,  including any fees and  disbursements of any special counsel to the
Holders  beyond those included in  Registration  Expenses,  are called  "Selling
Expenses." The Company shall only be responsible for all Registration Expenses.

     5. Indemnification.

          (a) In the event of a registration of any Registrable Securities under
     the Securities Act pursuant to this  Agreement,  the Company will indemnify
     and hold harmless the Purchaser, and its officers, directors and each other
     person,  if any,  who  controls  the  Purchaser  within the  meaning of the
     Securities Act, against any losses, claims,  damages or liabilities,  joint
     or several,  to which the  Purchaser,  or such  persons may become  subject
     under the  Securities  Act or  otherwise,  insofar as such losses,  claims,
     damages or liabilities (or actions in respect  thereof) arise out of or are
     based upon any untrue statement or alleged untrue statement of any material
     fact contained in any  Registration  Statement under which such Registrable

     Securities  were  registered  under the  Securities  Act  pursuant  to this
     Agreement,   any  preliminary  Prospectus  or  final  Prospectus  contained
     therein,  or any  amendment or supplement  thereof,  or arise out of or are
     based upon the  omission or alleged  omission  to state  therein a material
     fact  required to be stated  therein or  necessary  to make the  statements
     therein not  misleading,  and will reimburse the  Purchaser,  and each such
     person  for any  reasonable  legal or other  expenses  incurred  by them in
     connection with  investigating or defending any such loss,  claim,  damage,
     liability or action; provided, however, that the Company will not be liable
     in any such case if and to the extent that any such loss, claim,  damage or
     liability  arises  out of or is based upon an untrue  statement  or alleged
     untrue statement or omission or alleged omission so made in conformity with
     information  furnished by or on behalf of the  Purchaser or any such person
     in writing specifically for use in any such document.

          (b) In the event of a registration of the Registrable Securities under
     the Securities Act pursuant to this Agreement, the Purchaser will indemnify
     and hold harmless the Company,  and its officers,  directors and each other
     person,  if any,  who  controls  the  Company  within  the  meaning  of the
     Securities Act, against all losses, claims,  damages or liabilities,  joint
     or several,  to which the Company or such persons may become  subject under
     the Securities Act or otherwise, insofar as such losses, claims, damages or
     liabilities (or actions in respect  thereof) arise out of or are based upon
     any untrue statement or alleged untrue statement of any material fact which
     was furnished in writing by the Purchaser to the Company  expressly for use
     in (and such information is contained in) the Registration  Statement under
     which such Registrable  Securities were registered under the Securities Act
     pursuant to this Agreement,  any preliminary Prospectus or final Prospectus
     contained therein,  or any amendment or supplement thereof, or arise out of
     or are based upon the  omission  or  alleged  omission  to state  therein a
     material  fact  required  to be stated  therein  or  necessary  to make the
     statements therein not misleading,  and will reimburse the Company and each
     such person for any reasonable legal or other expenses  incurred by them in
     connection with  investigating or defending any such loss,  claim,  damage,
     liability or action,  provided,  however, that the Purchaser will be liable
     in any such  case if and only to the  extent  that  any such  loss,  claim,
     damage or liability  arises out of or is based upon an untrue  statement or
     alleged  untrue  statement  or  omission  or  alleged  omission  so made in
     conformity  with  information  furnished in writing to the Company by or on
     behalf  of  the  Purchaser  specifically  for  use in  any  such  document.
     Notwithstanding  the provisions of this paragraph,  the Purchaser shall not
     be  required to  indemnify  any person or entity in excess of the amount of
     the  aggregate  net  proceeds  received  by the  Purchaser  in  respect  of
     Registrable  Securities in connection with any such registration  under the
     Securities Act.

          (c)   Promptly   after   receipt   by  a  party   entitled   to  claim
     indemnification  hereunder  (an  "Indemnified  Party")  of  notice  of  the
     commencement of any action,  such  Indemnified  Party shall, if a claim for


     indemnification  in respect  thereof is to be made  against a party  hereto
     obligated to indemnify such Indemnified  Party (an  "Indemnifying  Party"),
     notify the Indemnifying  Party in writing  thereof,  but the omission so to
     notify the Indemnifying Party shall not relieve it from any liability which
     it may have to such  Indemnified  Party other than under this  Section 5(c)
     and shall  only  relieve  it from any  liability  which it may have to such
     Indemnified  Party  under  this  Section  5(c)  if and to  the  extent  the
     Indemnifying Party is prejudiced by such omission.  In case any such action
     shall be brought  against  any  Indemnified  Party and it shall  notify the
     Indemnifying  Party of the commencement  thereof,  the  Indemnifying  Party
     shall be entitled to  participate  in and, to the extent it shall wish,  to
     assume and undertake the defense thereof with counsel  satisfactory to such
     Indemnified  Party,  and, after notice from the Indemnifying  Party to such
     Indemnified  Party of its election so to assume and  undertake  the defense
     thereof,  the  Indemnifying  Party shall not be liable to such  Indemnified
     Party under this Section 5(c) for any legal expenses  subsequently incurred
     by such Indemnified  Party in connection with the defense  thereof;  if the
     Indemnified Party retains its own counsel, then the Indemnified Party shall
     pay all fees, costs and expenses of such counsel, provided,  however, that,
     if the defendants in any such action include both the indemnified party and
     the  Indemnifying  Party and the  Indemnified  Party shall have  reasonably
     concluded that there may be reasonable  defenses  available to it which are
     different from or additional to those available to the  Indemnifying  Party
     or if the interests of the  Indemnified  Party  reasonably may be deemed to
     conflict  with the interests of the  Indemnifying  Party,  the  Indemnified
     Party  shall have the right to select one  separate  counsel  and to assume
     such legal  defenses and  otherwise to  participate  in the defense of such
     action,  with the reasonable expenses and fees of such separate counsel and
     other  expenses  related  to such  participation  to be  reimbursed  by the
     Indemnifying Party as incurred.

          (d) In order to provide  for just and  equitable  contribution  in the
     event of joint  liability  under  the  Securities  Act in any case in which
     either (i) the Purchaser, or any officer, director or controlling person of
     the Purchaser, makes a claim for indemnification pursuant to this Section 5
     but it is judicially determined (by the entry of a final judgment or decree
     by a court of competent  jurisdiction  and the expiration of time to appeal
     or the denial of the last right of appeal)  that such  indemnification  may
     not be enforced in such case  notwithstanding  the fact that this Section 5
     provides for  indemnification  in such case, or (ii) contribution under the
     Securities  Act  may be  required  on the  part  of the  Purchaser  or such
     officer,  director or controlling  person of the Purchaser in circumstances
     for which  indemnification  is provided  under this Section 5; then, and in
     each such case,  the  Company  and the  Purchaser  will  contribute  to the
     aggregate  losses,  claims,  damages  or  liabilities  to which they may be
     subject  (after  contribution  from others) in such  proportion so that the
     Purchaser is responsible only for the portion represented by the percentage
     that  the  public   offering  price  of  its  securities   offered  by  the

     Registration Statement bears to the public offering price of all securities
     offered by such Registration  Statement,  provided,  however,  that, in any
     such case,  (A) the Purchaser will not be required to contribute any amount
     in excess of the public offering price of all such securities offered by it
     pursuant to such Registration Statement; and (B) no person or entity guilty
     of fraudulent misrepresentation (within the meaning of Section 10(f) of the
     Act) will be entitled to contribution from any person or entity who was not
     guilty of such fraudulent misrepresentation.

     6. Representations and Warranties.

          (a) The Common Stock of the Company is registered  pursuant to Section
     12(b) or 12(g) of the  Exchange  Act and,  except  with  respect to certain
     matters  which the Company has  disclosed to the Purchaser on Schedule 4.21
     to the  Securities  Purchase  Agreement,  the  Company  has filed all proxy
     statements,  reports,  schedules,  forms,  statements  and other  documents
     required to be filed by it under the  Exchange  Act.  The Company has filed
     (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 the fiscal quarters
     ended March 31, 2004,  June 30, 2004 and September 30, 2004  (collectively,
     the "SEC  Reports").  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.  The financial  statements of the Company included in
     the SEC Reports comply as to form in all material  respects with applicable
     accounting  requirements  and the published  rules and  regulations  of the
     Commission or other  applicable rules and regulations with respect thereto.
     Such financial  statements  have been prepared in accordance with generally
     accepted  accounting  principles  ("GAAP")  applied on a  consistent  basis
     during the periods  involved  (except (i) as may be otherwise  indicated in
     such  financial  statements  or the  notes  thereto  or (ii) in the case of
     unaudited interim statements,  to the extent they may not include footnotes
     or may be  condensed)  and fairly  present  in all  material  respects  the
     financial  condition,  the results of operations  and the cash flows of the
     Company and its subsidiaries,  on a consolidated basis, as of, and for, the
     periods presented in each such SEC Report.

          (b) The  Common  Stock is quoted for  trading  on the Nasdaq  Over the
     Counter  Bulletin  ("OTC  BB")  and  satisfies  all  requirements  for  the
     continuation  of such  quotation and trading.  The Company has not received
     any notice that its Common  Stock will be removed from  quotation  from the
     Nasdaq OTC BB (except for prior notices which have been fully  remedied) or
     that the Common Stock does not meet all  requirements  for the continuation
     of such quotation for trading.

          (c) 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 any security  under
     circumstances  that would cause the offering of the Securities  pursuant to
     the Securities  Purchase Agreement to be integrated with prior offerings by
     the Company  for  purposes of the  Securities  Act which would  prevent the
     Company  from  selling  the  Common  Stock  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.

          (d) The  Warrants,  the Note and the shares of Common  Stock which the
     Purchaser  may  acquire  pursuant  to the  Warrants  and the  Note  are all
     restricted  securities  under  the  Securities  Act as of the  date of this
     Agreement.  The  Company  will not issue any stop  transfer  order or other
     order impeding the sale and delivery of any of the  Registrable  Securities
     at such time as such Registrable  Securities are registered for public sale
     or an  exemption  from  registration  is  available,  except as required by
     federal or state securities laws.

          (e) The Company  understands the nature of the Registrable  Securities
     issuable  upon the  conversion  of the Note and the exercise of the Warrant
     and recognizes that the issuance of such Registrable  Securities may have a
     potential dilutive effect. The Company  specifically  acknowledges that its
     obligation to issue the Registrable  Securities 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.

          (f) Except for  agreements  made in the  ordinary  course of business,
     there is no  agreement  that has not been filed with the  Commission  as an
     exhibit to a  registration  statement or to a form  required to be filed by
     the Company under the Exchange Act, the breach of which could reasonably be
     expected  to have a material  and  adverse  effect on the  Company  and its
     subsidiaries,  or would prohibit or otherwise interfere with the ability of
     the  Company to enter into and perform  any of its  obligations  under this
     Agreement in any material respect.

          (g) The  Company  will at all times  have  authorized  and  reserved a
     sufficient  number of shares of Common Stock for the full conversion of the
     Note and exercise of the Warrants.

          (h) The Company is  eligible  to use Form SB-2 to register  securities
     under the Securities Act.


     7. Miscellaneous.

          (a) Remedies.  In the event of a breach by the Company or by a Holder,
     of any of their respective obligations under this Agreement, each Holder or
     the Company,  as the case may be, in addition to being entitled to exercise
     all rights granted by law and under this Agreement,  including  recovery of
     damages,  will be entitled to specific performance of its rights under this
     Agreement.

          (b) No  Piggyback  on  Registrations.  Except  as  and  to the  extent
     specified  in  Schedule  7(b)  hereto,  neither  the Company nor any of its
     security holders (other than the Holders in such capacity  pursuant hereto)
     may include  securities of the Company in any Registration  Statement other
     than the  Registrable  Securities  without the prior written consent of the
     Holders (which consent shall not be unreasonably withheld), and the Company
     shall not after the date hereof enter into any agreement providing any such
     right for inclusion of shares in the  Registration  Statement to any of its
     security  holders  without the prior written  consent of the Holders (which
     consent  shall not be  unreasonably  withheld  with respect to the grant of
     registration rights to new investors under a new financing if proceeds from
     such new  financing  are received by the Company  prior to the first Filing
     Date and such new financing does not exceed  $1,000,000).  Except as and to
     the  extent  specified  in  Schedule  7(b)  hereto,  the  Company  has  not
     previously entered into any agreement granting any registration rights with
     respect to any of its  securities  to any  Person  that have not been fully
     satisfied.

          (c) Compliance.  Each Holder  covenants and agrees that it will comply
     with  the  prospectus  delivery  requirements  of  the  Securities  Act  as
     applicable  to  it in  connection  with  sales  of  Registrable  Securities
     pursuant to the Registration Statement.

          (d) Discontinued Disposition. Each Holder agrees by its acquisition of
     such Registrable Securities that, upon receipt of a notice from the Company
     of the  occurrence  of a  Discontinuation  Event (as defined  below),  such
     Holder  will  forthwith   discontinue   disposition  of  such   Registrable
     Securities under the applicable  Registration Statement until such Holder's
     receipt  of  the  copies  of the  supplemented  Prospectus  and/or  amended
     Registration  Statement or until it is advised in writing (the "Advice") by
     the Company that the use of the applicable  Prospectus may be resumed, and,
     in either  case,  has received  copies of any  additional  or  supplemental
     filings that are  incorporated or deemed to be incorporated by reference in
     such  Prospectus  or  Registration  Statement.   The  Company  may  provide
     appropriate  stop orders to enforce the provisions of this  paragraph.  For
     purposes of this  Section  7(d), a  "Discontinuation  Event" shall mean (i)
     when the Commission  notifies the Company  whether there will be a "review"
     of such  Registration  Statement  and whenever the  Commission  comments in
     writing on such Registration  Statement (the Company shall provide true and
     complete  copies thereof and all written  responses  thereto to each of the
     Holders);  (ii) any request by the Commission or any other Federal or state
     governmental  authority for amendments or supplements to such  Registration
     Statement or Prospectus or for additional  information;  (iii) the issuance
     by the Commission of any stop order  suspending the  effectiveness  of such
     Registration Statement covering any or all of the Registrable Securities or

     the initiation of any Proceedings for that purpose; (iv) the receipt by the
     Company  of  any  notification  with  respect  to  the  suspension  of  the
     qualification  or exemption from  qualification  of any of the  Registrable
     Securities for sale in any  jurisdiction,  or the initiation or threatening
     of any Proceeding for such purpose;  and/or (v) the occurrence of any event
     or passage of time that makes the  financial  statements  included  in such
     Registration  Statement  ineligible for inclusion  therein or any statement
     made  in  such  Registration   Statement  or  Prospectus  or  any  document
     incorporated  or deemed to be incorporated  therein by reference  untrue in
     any material  respect or that requires any  revisions to such  Registration
     Statement,  Prospectus  or other  documents  so  that,  in the case of such
     Registration  Statement  or  Prospectus,  as the case  may be,  it will not
     contain  any  untrue  statement  of a  material  fact or omit to state  any
     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.

          (e) Piggy-Back Registrations.  If at any time during the Effectiveness
     Period there is not an effective Registration Statement covering all of the
     Registrable  Securities and the Company shall determine to prepare and file
     with the  Commission a registration  statement  relating to an offering for
     its own account or the account of others under the Securities Act of any of
     its  equity  securities,  other  than on  Form  S-4 or Form  S-8  (each  as
     promulgated under the Securities Act) or their then equivalents relating to
     equity securities to be issued solely in connection with any acquisition of
     any entity or business or equity  securities  issuable in  connection  with
     stock option or other employee  benefit plans,  then the Company shall send
     to each Holder written notice of such  determination and, if within fifteen
     days after  receipt of such  notice,  any such  Holder  shall so request in
     writing,  the Company shall include in such  registration  statement all or
     any  part  of  such  Registrable  Securities  such  holder  requests  to be
     registered  to  the  extent  the  Company  may  do  so  without   violating
     registration rights of others which exist as of the date of this Agreement,
     subject to  customary  underwriter  cutbacks  applicable  to all holders of
     registration  rights and subject to obtaining  any required  consent of any
     selling stockholder(s) to such inclusion under such registration statement.

          (f)  Amendments  and  Waivers.   The  provisions  of  this  Agreement,
     including the provisions of this sentence, may not be amended,  modified or
     supplemented,  and waivers or consents to  departures  from the  provisions
     hereof may not be given,  unless the same shall be in writing and signed by
     the Company and the Holders of the then outstanding Registrable Securities.
     Notwithstanding  the  foregoing,  a waiver or  consent  to depart  from the
     provisions hereof with respect to a matter that relates  exclusively to the
     rights of certain  Holders and that does not directly or indirectly  affect
     the rights of other  Holders may be given by Holders of at least a majority
     of the  Registrable  Securities  to which such  waiver or consent  relates;
     provided, however, that the provisions of this sentence may not be amended,
     modified,  or supplemented  except in accordance with the provisions of the
     immediately preceding sentence.

          (g)  Notices.  Any  notice or  request  hereunder  may be given to the
     Company or the Purchaser at the respective  addresses set forth below or as
     may  hereafter be specified in a notice  designated  as a change of address
     under this Section 7(g). Any notice or request  hereunder shall be given by
     registered or certified  mail,  return  receipt  requested,  hand delivery,
     overnight  mail,  Federal  Express  or other  national  overnight  next day

     carrier (collectively,  "Courier") or telecopy (confirmed by mail). Notices
     and  requests  shall be, in the case of those by hand  delivery,  deemed to
     have been given when delivered to any party to whom it is addressed, in the
     case of those by mail or  overnight  mail,  deemed to have been given three
     (3)  business  days after the date when  deposited  in the mail or with the
     overnight  mail  carrier,  in the case of a Courier,  the next business day
     following timely delivery of the package with the Courier, and, in the case
     of  a  telecopy,   when  confirmed.   The  address  for  such  notices  and
     communications shall be as follows:

   If to the Company:                   Science Dynamics Corporation
                                        Attention:  Chief Financial Officer
                                        Facsimile:  (856) 910-1811

                                        with a copy to:

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

   If                                   to a Purchaser: To the
                                        address set forth
                                        under such Purchaser
                                        name on the signature
                                        pages hereto.

   If to any other Person who
   is then the registered Holder:       To the address of such Holder as it
                                        appears in the stock transfer books
                                        of the Company

         or such other address as may be designated in writing hereafter in
         accordance with this Section 7(g) by such Person.

          (h) Successors and Assigns.  This Agreement shall inure to the benefit
     of and be binding upon the successors and permitted  assigns of each of the
     parties and shall inure to the benefit of each Holder.  The Company may not
     assign  its  rights or  obligations  hereunder  without  the prior  written
     consent of each  Holder.  Each Holder may assign  their  respective  rights
     hereunder in the manner and to the Persons as permitted under the Notes and
     the Securities  Purchase  Agreement  with the prior written  consent of the
     Company, which consent shall not be unreasonably withheld.

          (i) Execution and Counterparts.  This Agreement may be executed in any
     number of  counterparts,  each of which when so executed shall be deemed to
     be an original and, all of which taken  together  shall  constitute one and
     the same  Agreement.  In the  event  that any  signature  is  delivered  by
     facsimile  transmission,  such  signature  shall  create  a  valid  binding
     obligation  of the party  executing  (or on whose behalf such  signature is
     executed)  the same  with the same  force and  effect as if such  facsimile
     signature were the original thereof.

          (j)  Governing  Law.  All  questions   concerning  the   construction,
     validity,  enforcement  and  interpretation  of  this  Agreement  shall  be
     governed by and construed and enforced in accordance with the internal laws
     of the State of New York,  without regard to the principles of conflicts of
     law  thereof.  Each  party  agrees  that  all  Proceedings  concerning  the
     interpretations,  enforcement and defense of the transactions  contemplated
     by this Agreement  shall be commenced  exclusively in the state and federal
     courts  sitting in the City of New York,  Borough of Manhattan.  Each party
     hereto  hereby  irrevocably  submits to the exclusive  jurisdiction  of the
     state  and  federal  courts  sitting  in the City of New York,  Borough  of
     Manhattan for the  adjudication  of any dispute  hereunder or in connection
     herewith or with any transaction  contemplated  hereby or discussed herein,
     and hereby irrevocably  waives, and agrees not to assert in any Proceeding,
     any claim that it is not personally subject to the jurisdiction of any such
     court,  that  such  Proceeding  is  improper.   Each  party  hereto  hereby
     irrevocably  waives  personal  service of process  and  consents to process
     being  served  in  any  such  Proceeding  by  mailing  a copy  thereof  via
     registered  or  certified  mail or  overnight  delivery  (with  evidence of
     delivery)  to such party at the  address in effect for  notices to it under
     this  Agreement  and agrees that such  service  shall  constitute  good and
     sufficient service of process and notice thereof.  Nothing contained herein
     shall  be  deemed  to limit in any way any  right to serve  process  in any
     manner permitted by law. Each party hereto hereby  irrevocably  waives,  to
     the fullest extent  permitted by applicable law, any and all right to trial
     by  jury  in any  legal  proceeding  arising  out of or  relating  to  this
     Agreement or the transactions  contemplated  hereby.  If either party shall
     commence a Proceeding to enforce any provisions of a Transaction  Document,
     then the  prevailing  party in such  Proceeding  shall be reimbursed by the
     other party for its reasonable  attorneys fees and other costs and expenses
     incurred  with  the  investigation,  preparation  and  prosecution  of such
     Proceeding.

          (k) Cumulative  Remedies.  The remedies provided herein are cumulative
     and not exclusive of any remedies provided by law.

          (l) Severability.  If any term, provision,  covenant or restriction of
     this Agreement is held by a court of competent  jurisdiction to be invalid,
     illegal,  void or  unenforceable,  the remainder of the terms,  provisions,
     covenants and  restrictions set forth herein shall remain in full force and
     effect and shall in no way be affected,  impaired or  invalidated,  and the
     parties  hereto  shall use their  reasonable  efforts to find and employ an
     alternative  means to achieve the same or substantially  the same result as
     that contemplated by such term, provision,  covenant or restriction.  It is
     hereby stipulated and declared to be the intention of the parties that they
     would  have  executed  the  remaining  terms,  provisions,   covenants  and
     restrictions  without including any of such that may be hereafter  declared
     invalid, illegal, void or unenforceable.

          (m) Headings.  The headings in this  Agreement are for  convenience of
     reference only and shall not limit or otherwise affect the meaning hereof.

                   [Balance of page intentionally left blank;
                             signature page follows]




     IN WITNESS  WHEREOF,  the parties have  executed this  Registration  Rights
Agreement as of the date first written above.

SCIENCE DYNAMICS CORPORATION                 LAURUS MASTER FUND, LTD.


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

                                             Address for Notices:

                                             825 Third Avenue - 14th Floor
                                             New York, NY  10022
                                             Attention:        David Grin
                                             Facsimile:        212-541-4434









                                    EXHIBIT A

                                [Month __, 2003]

[Continental Stock Transfer
   & Trust Company
Two Broadway
New York, NY  10004
Attn:  William Seegraber]

Re:      [Company Name]. Registration Statement on Form [SB-2]
Ladies and Gentlemen:
- --------------------------------------------------------------------------------

     As counsel to Science  Dynamics  Corporation,  a Delaware  corporation (the
"Company"),  we have been  requested to render our opinion to you in  connection
with the resale by the  individuals  or  entitles  listed on Schedule A attached
hereto (the "Selling  Stockholders"),  of an aggregate of [_______]  shares (the
"Shares") of the Company's Common Stock.

     A  Registration  Statement on Form [SB-2] under the Securities Act of 1933,
as amended  (the  "Act"),  with respect to the resale of the Shares was declared
effective by the Securities and Exchange  Commission on [date].  Enclosed is the
Prospectus  dated [date].  We  understand  that the Shares are to be offered and
sold in the manner described in the Prospectus.

     Based upon the foregoing,  upon request by the Selling  Stockholders at any
time while the registration statement remains effective,  it is our opinion that
the Shares have been  registered  for resale under the Act and new  certificates
evidencing  the Shares  upon their  transfer or  re-registration  by the Selling
Stockholders may be issued without restrictive legend. We will advise you if the
registration statement is not available or effective at any point in the future.

                                                     Very truly yours,


                                                     [Company counsel]










                                   Schedule A
Selling Stockholder                                                 Shares
- -------------------                                               Being Offered