EXHIBIT 4.2

THIS NOTE AND THE COMMON STOCK REFERENCED  HEREIN HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED (THE "1933 ACT"), OR UNDER THE PROVISIONS
OF ANY APPLICABLE STATE SECURITIES LAWS, BUT HAS BEEN ACQUIRED BY THE REGISTERED
HOLDER HEREOF FOR PURPOSES OF INVESTMENT AND IN RELIANCE ON STATUTORY EXEMPTIONS
UNDER THE 1933 ACT, AND UNDER ANY APPLICABLE STATE SECURITIES LAWS.  NEITHER THE
NOTE NOR THE COMMON STOCK MAY BE SOLD,  PLEDGED,  TRANSFERRED OR ASSIGNED EXCEPT
IN A  TRANSACTION  WHICH  IS  EXEMPT  UNDER  PROVISIONS  OF THE 1933 ACT AND ANY
APPLICABLE  STATE  SECURITIES  LAWS OR  PURSUANT  TO AN  EFFECTIVE  REGISTRATION
STATEMENT; AND IN THE CASE OF AN EXEMPTION,  ONLY IF THE COMPANY HAS RECEIVED AN
OPINION OF COUNSEL  SATISFACTORY TO THE COMPANY THAT SUCH  TRANSACTION  DOES NOT
REQUIRE REGISTRATION OF THIS NOTE.

This  note is one of a  series  issued  in the  aggregate  principal  amount  of
$_________.

                           APPLIED DNA SCIENCES, INC.


___________ __, 2005                                                     $50,000

                     10% SECURED CONVERTIBLE PROMISSORY NOTE

Applied DNA Sciences, Inc. (the "Company"),  for value received, hereby promises
to pay to  _________________  or registered assigns (the "Holder") twelve months
from the date hereof on  _______________,  2006,  the "Maturity  Date"),  at the
principal  offices of the Holder,  the principal sum of FIFTY  THOUSAND  DOLLARS
($50,000)  in such coin or  currency  of the United  States of America as at the
time of  payment  shall be legal  tender for the  payment of public and  private
debts,  and to pay interest on the outstanding  principal sum hereof at the rate
of ten percent (10%) per annum. Any principal payment or interest payment on the
unpaid  principal amount of this Note not paid when due, whether at the Maturity
Date, on the effective date of an Early  Termination  Event,  by acceleration or
otherwise,  shall bear  interest at twelve  percent  (12%) or the  maximum  rate
permissible  by law,  whichever  is  less.  Payment  of  Principal  and  accrued
interest, if any, shall be payable on the Maturity Date in like coin or currency
to the Holder  hereof at the address of the Holder  designated  above or at such
other place as the Holder  shall have  notified  the Company in writing at least
five (5) days before the Maturity Date,  provided that any payment otherwise due
on a  Saturday,  Sunday  or  legal  Bank  holiday  may be paid on the  following
business day.

          This Note is secured by all the assets of the  Company  including  but
not limited to patents, licenses,  equipment,  fixtures,  inventory and accounts
receivable,  for the benefit of the Holder  pursuant to a Security  Agreement of
even date  herewith  ("Security  Agreement").  Reference  herein to the Security
Agreement  shall in no way impair the absolute and  unconditional  obligation of
the Company to pay both principal and interest hereon as provided herein.

          The rights and  remedies  of the Holder  hereunder  are subject to the
terms and conditions of the Security Agreement  including,  without  limitation,
powers with respect to the  enforceability and collectibility of all amounts due
hereunder.   Reference  to  the  Security  Agreement  is  made  for  a  complete
description of the rights, powers and obligations of the Holder.

                                       1


          1. Transfers of Note to Comply with the 1933 Act

          The  Holder  agrees  that  this  Note  may not be  sold,  transferred,
pledged,  hypothecated  or  otherwise  disposed of except as  follows:  (1) to a
person whom the Note may legally be transferred without registration and without
delivery of a current  prospectus  under the 1933 Act with  respect  thereto and
then only  against  receipt of an  agreement  of such  person to comply with the
provisions of this Section 1 with respect to any resale or other  disposition of
the Note;  or (2) to any person upon  delivery of a prospectus  then meeting the
requirements  of the 1933  Act  relating  to such  securities  and the  offering
thereof  for  such  sale  or  disposition,  and  thereafter  to  all  successive
assignees.

          2. Prepayment; Repayment Upon Consolidation or Merger.

          (a) The  principal  amount of this Note may be prepaid by the Company,
in whole or in part without premium or penalty, at any time. Upon any prepayment
of the entire principal amount of this Note, all accrued,  but unpaid,  interest
shall be paid to the Holder on the date of  prepayment.  The date upon which the
Company  prepays the principal plus all accrued and unpaid  interest due on this
Note shall be hereinafter referred to as the "Prepayment Date."

          (b) This Note shall be paid in full, without premium, in the event the
Company consolidates or merges with another corporation,  unless (i) the Company
shall be the surviving  corporation in such  consolidation or merger or (ii) the
other corporation controls, is under common control with or is controlled by the
Company  immediately  prior to the  consolidation  or merger  whether or not the
Company shall be the surviving  corporation in such  consolidation or merger, in
which  event  this  Note  shall  remain  outstanding  as an  obligation  of  the
consolidated or surviving corporation.

          3. Conversion of Note

          (a) This Note shall automatically  convert into shares of Common Stock
of the Company upon the filing of a  registration  statement with the Securities
and Exchange  Commission for Common Stock of the Company.  The  conversion  rate
shall be $.50 per  share,  and the  entirety  of the debt  shall be  applied  to
purchase of Common Stock at such price.

          (b) The Holder shall have the right from time to time, and at any time
on or prior to the Maturity  Date, to convert all or any part of the entirety of
the debt then  outstanding  under this Note into  fully paid and  non-assessable
shares of Common  Stock,  as such Common Stock exists on the issue date,  or any
shares of  capital  stock or other  securities  of the  Company  into which such
Common Stock shall hereafter be changed or  reclassified  at a conversion  price
equal to $.50 per share;

                                       2

          (c)  Notwithstanding  the  foregoing,  in the event  that any sums due
under this Note are not repaid on the  Maturity  Date,  the Holder will have the
option to convert the entirety of the debt then outstanding under this Note into
fully paid and  non-assessable  shares of Common  Stock,  as such  Common  Stock
exists on the issue date, or any shares of capital stock or other  securities of
the  Company  into  which  such  Common  Stock  shall  hereafter  be  changed or
reclassified  at a  conversion  price  equal to the number of Shares  derived by
dividing  the sum of such debt by the dollar  value  equal to 80% of the closing
ask price of the  Shares  on the last  trading  day  immediately  preceding  the
Maturity  Date as  reported  on the market  upon which the Shares  shall then be
trading,  provided,  however, that the conversion price shall never be less than
$0.33 per share. .

          4. Covenants of Company

          The Company covenants and agrees that, so long as any principal of, or
interest on, this Note shall remain  unpaid,  unless the Holder shall  otherwise
consent in writing, it will comply with the following terms:

          (a) Reporting Requirements. The Company will furnish to the Holder:

               (i) as soon as  possible,  and in any event  within ten (10) days
after  obtaining  knowledge  of the  occurrence  of (A) an Event of Default,  as
hereinafter  defined, (B) an event which, with the giving of notice or the lapse
of time or both, would constitute an Event of Default, or (C) a material adverse
change in the condition or operations,  financial or otherwise,  of the Company,
taken as whole,  the written  statement  of the Chief  Executive  Officer or the
Chief Financial Officer of the Company,  setting forth the details of such Event
of Default,  event or material  adverse  change and the action which the Company
proposes to take with respect thereto;

               (ii) promptly after the sending or filing thereof,  copies of all
financial  statements,  reports,  certificates of its Chief  Executive  Officer,
Chief Financial  Officer or accountants and other  information which the Company
or any subsidiary sends to any holders (other than the Notes) of its securities;

               (iii) promptly  after the  commencement  thereof,  notice of each
action,  suit or proceeding before any court or other governmental  authority or
other  regulatory  body or any  arbitrator  as to which  there  is a  reasonable
possibility of a determination  that would (A) materially  impact the ability of
the  Company or any  subsidiary  to conduct its  business,  (B)  materially  and
adversely affect the business,  operations or financial condition of the Company
taken as a whole, or (C) impair the validity or  enforceability  of the Notes or
the ability of the Company to perform its obligations under the Notes;

               (iv) promptly upon request, such other information concerning the
condition or  operations,  financial or otherwise,  of the Company as the Holder
from time to time may reasonably request.

                                       3

          (b) Taxes.  The Company has filed or will file all federal,  state and
local  tax  returns  required  to be  filed or sent or has  obtained  extensions
thereof.  Except as  otherwise  disclosed,  the  Company has timely paid or made
provision for all taxes shown as due and payable on its tax returns  required to
be filed  prior to the date hereof and all  assessments  received by the Company
and will  timely pay all taxes that will be shown as due and  payable on its tax
returns  required to be filed after the date  hereof,  except to the extent that
the Company  shall be  contesting  such taxes and  assessments  in good faith by
appropriate proceedings.

          (c)  Compliance  with Laws.  The Company will comply,  in all material
respects with all applicable laws, rules,  regulations and orders, except to the
extent  that  noncompliance  would not have a material  adverse  effect upon the
business, operations or financial condition of the Company taken as a whole.

          (d)  Keeping of Records and Books of  Account.  The Company  will keep
adequate records and books of account,  with complete entries made in accordance
with generally accepted accounting  principles,  reflecting all of its financial
and other business transactions.

          (e) Negative  Covenants.  The Company  covenants and agrees that while
this Note is outstanding it will not directly or indirectly:

               (i) Incur any indebtedness  (other than in the ordinary course of
its business) or grant any liens with respect to any of its assets,  without the
written consent of the Holder (which shall not be unreasonably withheld);

               (ii)  Guaranty or otherwise  in any way become or be  responsible
for indebtedness  for borrowed money, or for obligations,  in either case of any
of its officers, directors or principal stockholders or any of their affiliates,
contingently or otherwise,  other than such  guaranties  existing as of the date
hereof,  or in any way fail to comply with the provisions of the  Sarbanes-Oxley
Act of 2002;

               (iii) Declare or pay cash dividends;

               (iv) Sell,  transfer or dispose of, any of its assets  other than
in the ordinary course of its business and for fair value;

               (v) Purchase,  redeem,  retire or otherwise acquire for value any
of its capital stock now or hereafter outstanding; or

               (vi) Repay out of the proceeds of this Note any  indebtedness for
borrowed  funds or any related  party  obligations  except for Notes  heretofore
issued to persons to  investors  through  offerings  in which  Vertical  Capital
Partners, Inc acted as placement agent.

          (f)  Security  Interest.  Except  with  respect to prior  Notes of the
Company sold through offerings in which Vertical Capital Partners, Inc. acted as
placement  agent and which the Company intends either to repay with the proceeds
of these Notes or effect a conversion into Common Stock, the Company  represents

                                       4

and warrants that it has not granted any other party a security  interest in any
of its (or its subsidiaries) patents, licenses,  equipment,  fixtures, inventory
or accounts receivable.  The Company certifies under penalty of perjury that the
security  interest in the collateral is not pledged and the Holder will assume a
senior security position on such collateral.

          5. Events of Default and Remedies

          (a) Any one or more of the following  events which shall have occurred
and be continuing shall constitute an event of default (Event of Default):

               (i) Default in the payment of the  principal or accrued  interest
on this Note or upon any other indebtedness of the Company after the date hereof
that is greater than $100,000, as and when the same shall become due, whether by
default or otherwise,  which  Default shall have  continued for a period of five
(5) business days; or

               (ii) Any  representation  or warranty  made by the Company or any
officer of the Company in the Notes, or in any agreement, report, certificate or
other  document  delivered  to the Holder  pursuant to the Notes shall have been
incorrect in any material  respect when made which shall not have been  remedied
ten (10) days after written  notice thereof shall have been given by the Holder;
or

               (iii)  The   Company   shall  fail  to  perform  or  observe  any
affirmative covenant contained in Section 4 of this Note or any of the Notes and
such  Default,  if capable of being  remedied,  shall not have been remedied ten
(10) days after written notice thereof shall have been given by the Holder; or

               (iv) The  Company  or any  subsidiary  (A)  shall  institute  any
proceeding or voluntary case seeking to adjudicate it bankrupt or insolvent,  or
seeking  dissolution,  liquidation,  winding  up,  reorganization,  arrangement,
adjustment,  protection,  relief or composition of it or its debts under any law
relating to bankruptcy,  insolvency or reorganization  or relief of debtors,  or
seeking  the entry of any order for  relief or the  appointment  of a  receiver,
trustee,  custodian  or other  similar  official  for such  the  Company  or any
subsidiary or for any substantial part of its property,  or shall consent to the
commencement against it of such a proceeding or case, or shall file an answer in
any such case or proceeding commenced against it consenting to or acquiescing in
the commencement of such case or proceeding, or shall consent to or acquiesce in
the appointment of such a receiver,  trustee, custodian or similar official; (B)
shall be unable to pay its debts as such debts  become  due,  or shall  admit in
writing its  inability  to apply its debts  generally;  (C) shall make a general
assignment  for the  benefit  of  creditors;  or (D)  shall  take any  action to
authorize  or  effect  any of the  actions  set forth  above in this  subsection
5(a)(iv); or

               (v) Any  proceeding  shall  be  instituted  against  the  Company
seeking  to  adjudicate  it a bankrupt  or  insolvent,  or seeking  dissolution,
liquidation, winding up, reorganization,  arrangement,  adjustment,  protection,
relief  of  debtors,  or  seeking  the  entry  of an  order  for  relief  or the
appointment of a receiver,  trustee, custodian or other similar official for the
Company or for any substantial part of its property,  and either such proceeding
shall not have been  dismissed  or shall  not have been  stayed  for a period of


                                       5

sixty  (60) days or any of the  actions  sought in such  proceeding  (including,
without  limitation,  the  entry  of any  order  for  relief  against  it or the
appointment of a receiver,  trustee,  custodian or other similar official for it
or for any substantial part of its property) shall occur; or

               (vi) One or more final  judgments,  arbitration  awards or orders
for the  payment  of money in  excess  of  $100,000  in the  aggregate  shall be
rendered against the Company, which judgment remains unsatisfied for thirty (30)
days after the date of such entry.

               (vii) Delisting of the Common Stock from the principal  market or
exchange on which the Common Stock is listed for trading;  Company's  failure to
comply with the conditions for listing;  or notification that the Company is not
in compliance with the conditions for such continued listing.

               (viii)  The  issuance  of an SEC  stop  trade  order  or an order
suspending  trading of the Common Stock from the principal market or exchange on
which the Common  Stock is listed for  trading  for longer than five (5) trading
days.

               (ix) The failure by the Company to issue  shares of Common  Stock
to the Holder upon exercise by the Holder of the conversion rights of the Holder
in  accordance  with the terms of this Note, or the failure to transfer or cause
its transfer  agent to transfer  (electronically  or in  certificated  form) any
certificate  for shares of Common Stock issued to the Holder upon  conversion of
or  otherwise  pursuant to this Note as and when  required by this Note,  or the
failure  to remove any  restrictive  legend (or to  withdraw  any stop  transfer
instructions  in respect  thereof) on any  certificate  for any shares of Common
Stock issued to the Holder upon conversion of or otherwise pursuant to this Note
as and when required by this Note, and any such failure shall  continue  uncured
for ten (10) days after the Company shall have been notified  thereof in writing
by the Holder;

               (x) The failure by the Company to file the Registration Statement
on or about February 15, 2005, or obtain  effectiveness  with the Securities and
Exchange Commission of the Registration Statement within 120 days from that date
or such  Registration  Statement  lapses in effect (or sales cannot otherwise be
made there under effective,  whether by reason of the Company's failure to amend
or  supplement  the  prospectus  included  therein)  for more than  thirty  (30)
consecutive days after the Registration  Statement becomes effective which shall
include Common Stock into which this Note may be converted; or

               (xi) The Company shall  encumber or  hypothecate  the  collateral
subject to the Security Agreement to any party;

               (xii) A default  by the  Company of a  material  term,  covenant,
warranty or undertaking  of any other  agreement to which the Company and Holder
are  parties,  or the  occurrence  of an event of  default  under any such other
agreement; or

               (xiii) A default by the Company under its license  agreement with
Biowell Technology, Inc.

                                       6

          (b) In the event of and immediately upon the occurrence of an Event of
Default, the Note shall become immediately due and payable without any action by
the Holder and the Note  shall bear  interest  until paid at the rate of 12% per
annum or such amount as shall be allowed by law (the "Default  Interest  Rate").
If an Event of Default occurs and is continuing, Holder may pursue any available
remedy to collect  the  payment of all  amounts due under the Note or to enforce
the performance of any provision of the Note. No waiver of any default under the
Note shall be construed as a waiver of any subsequent  default,  and the failure
to exercise any right or remedy thereunder shall not waive the right to exercise
such right or remedy thereafter.


          (c) The Company  covenants  that in case the principal of, and accrued
interest on, the Note becomes due and payable by declaration or otherwise,  then
the Company  will pay in cash to the Holder of this Note,  the whole amount that
then shall have become due and payable on this Note for  principal  or interest,
as the case may be, and in addition  thereto,  such  further  amount as shall be
sufficient to cover the costs and expenses of collection,  including  reasonable
fees and disbursements of the Holder's legal counsel.  In case the Company shall
fail  forthwith  to pay such  amount,  the  Holder  may  commence  an  action or
proceeding at law or in equity for the collection of the sums so due and unpaid,
and may  prosecute  any such action or  proceeding  to judgment or final  decree
against Company or other obligor upon this Note,  wherever situated,  the monies
adjudicated or decreed to be payable.

          (d) The Company  agrees that it shall give notice to the Holder at its
registered address by facsimile,  confirmed by certified mail, of the occurrence
of any Event of Default  within ten (10) days after such Event of Default  shall
have occurred.

          6. Waiver of Automatic Stay

          The Company acknowledges and agrees that should a proceeding under any
bankruptcy or insolvency  law be commenced by or against the Company,  or if any
of the  Collateral  (as defined in the  Security  Agreement)  should  become the
subject of any  bankruptcy or insolvency  proceeding,  then the Holder should be
entitled to,  among other  relief to which the Holder may be entitled  under the
Note,  Security  Agreement,  Subscription  Agreement and any other  agreement to
which the Company and Holder are parties, (collectively "Loan Documents") and/or
applicable  law,  an order from the court  granting  immediate  relief  from the
automatic  stay  pursuant  to 11  U.S.C.  Section  362 to permit  the  Holder to
exercise all of its rights and remedies  pursuant to the Loan  Documents  and/or
applicable law. THE COMPANY  EXPRESSLY  WAIVES THE BENEFIT OF THE AUTOMATIC STAY
IMPOSED  BY  11  U.S.C.   SECTION  362.   FURTHERMORE,   THE  COMPANY  EXPRESSLY
ACKNOWLEDGES AND AGREES THAT NEITHER 11 U.S.C. SECTION 362 NOR ANY OTHER SECTION
OF THE BANKRUPTCY CODE OR OTHER STATUTE OR RULE (INCLUDING,  WITHOUT LIMITATION,
11 U.S.C. SECTION 105) SHALL STAY,  INTERDICT,  CONDITION,  REDUCE OR INHIBIT IN
ANY WAY THE  ABILITY  OF THE HOLDER TO  ENFORCE  ANY OF ITS RIGHTS AND  REMEDIES
UNDER THE LOAN DOCUMENTS  AND/OR  APPLICABLE LAW. The Company hereby consents to
any  motion  for  relief  from  stay  which  may be filed by the  Holder  in any
bankruptcy  or  insolvency  proceeding  initiated by or against the Company and,

                                       7

further,  agrees not to file any  opposition  to any motion for relief from stay
filed by the Holder. The Company  represents,  acknowledges and agrees that this
provision is a specific and material aspect of the Loan Documents,  and that the
Holder  would not agree to the terms of the Loan  Documents  if this waiver were
not a part of this Note. The Company further represents, acknowledges and agrees
that this waiver is knowingly,  intelligently and voluntarily made, that neither
the  Holder  nor any  person  acting  on  behalf  of the  Holder  has  made  any
representations to induce this waiver, that the Company has been represented (or
has had the  opportunity to be  represented) in the signing of this Note and the
Loan  Documents  and in the making of this waiver by  independent  legal counsel
selected by the Company and that the Company has had the  opportunity to discuss
this waiver with  counsel.  The Company  further  agrees that any  bankruptcy or
insolvency  proceeding  initiated  by the Company will only be brought in courts
within the geographic boundaries of New York State.

          7. Failure to Pay Upon Maturity

          In the  event  that the sum due  under  the Note is not  repaid on the
Maturity  Date,  the Holder  will have the option to either have the Note accrue
interest at 12% or such amount as legally  allowed until paid, or to convert the
entirety of the debt then  outstanding  under the Note into the number of Shares
derived by dividing the sum of such debt by the dollar value equal to 80% of the
closing ask price of the Shares on the last  trading day  immediately  preceding
the Maturity  Date as reported on the market upon which the Shares shall then be
trading,  provided,  however, that the conversion price shall never be less than
$0.33 per share.  Any Shares  acquired  thereby shall carry with them the demand
and piggy back registration rights granted to the Holder hereby.



          8. Unconditional Obligation; Fees, Waivers, Other.

          (a) The obligations to make the payments provided for in this Note are
absolute  and   unconditional   and  not  subject  to  any   defense,   set-off,
counterclaim, rescission, recoupment or adjustment whatsoever.

          (b) If, following the occurrence of an Event of Default,  Holder shall
seek to enforce the collection of any amount of principal of and/or  interest on
this Note,  there shall be  immediately  due and payable  from the  Company,  in
addition to the then unpaid  principal of, and accrued unpaid  interest on, this
Note,  all costs and  expenses  incurred  by  Holder  in  connection  therewith,
including, without limitation, reasonable attorneys' fees and disbursements.

          (c) No forbearance, indulgence, delay or failure to exercise any right
or  remedy  with  respect  to this  Note  shall  operate  as a  waiver  or as an
acquiescence  in any  default,  nor shall any single or partial  exercise of any
right or remedy preclude any other or further  exercise  thereof or the exercise
of any other right or remedy.

          (d) This Note may not be modified or discharged (other than by payment
or conversion) except by a writing duly executed by the Company and Holder.

                                       8

          (e) Holder hereby expressly waives demand and presentment for payment,
notice of nonpayment,  notice of dishonor,  protest, notice of protest, bringing
of suit,  and  diligence  in taking  any action to  collect  amounts  called for
hereunder,  and shall be directly  and  primarily  liable for the payment of all
sums  owing  and to be owing  hereon,  regardless  of and  without  any  notice,
diligence,  act or omission with respect to the  collection of any amount called
for hereunder or in connection with any right, lien, interest or property at any
and all times which the  Company  had or is existing as security  for any amount
called for hereunder.


                                       9

          9. Miscellaneous

          (a) The  headings  of the  various  paragraphs  of this  Note  are for
convenience  of  reference  only and shall in no way  modify any of the terms or
provisions of this Note.

          (b) This Note has been issued by the Company pursuant to authorization
of the Board of Directors of the Company.

          All notices  required or permitted to be given  hereunder  shall be in
writing and shall be deemed to have been duly given when personally delivered or
sent  by  registered  or  certified  mail  (return  receipt  requested,  postage
prepaid),  facsimile  transmission  or  overnight  courier to the address of the
intended  recipient  as set forth in the  preamble to this Note or at such other
address as the intended  recipient shall have hereafter given to the other party
hereto  pursuant to the provisions of this Note.(c) The Company may consider and
treat the  entity in whose name this Note shall be  registered  as the  absolute
owner  thereof for all  purposes  whatsoever  (whether or not this Note shall be
overdue)  and the Company  shall not be affected by any notice to the  contrary.
Subject to the  limitations  herein stated,  the  registered  owner of this Note
shall have the right to transfer  this Note by  assignment,  and the  transferee
thereof shall,  upon his registration as owner of this Note,  become vested with
all the  powers  and rights of the  transferor.  Registration  of any new owners
shall take place upon  presentation of this Note to the Company at its principal
offices,  together with a duly authenticated  assignment. In case of transfer by
operation of law, the  transferee  agrees to notify the Company of such transfer
and of his address, and to submit appropriate evidence regarding the transfer so
that this Note may be  registered  in the name of the  transferee.  This Note is
transferable only on the books of the Company by the holder hereof, in person or
by attorney, on the surrender hereof, duly endorsed.  Communications sent to any
registered owner shall be effective as against all holders or transferees of the
Note not registered at the time of sending the communication.

          (d)  Payments of  principal  and  interest  shall be made as specified
above to the  registered  owner of this Note.  No interest  shall be due on this
Note for such period of time that may elapse  between the  maturity of this Note
and its presentation for payment.

          (e) The Holder shall not, by virtue, hereof, be entitled to any rights
of a shareholder in the Company,  whether at law or in equity, and the rights of
the Holder are limited to those expressed in this Note.

          (f) Upon receipt by the Company of evidence reasonably satisfactory to
it of the loss, theft,  destruction or mutilation of this Note, and (in the case
of loss, theft or destruction) of reasonably satisfactory  indemnification,  and
upon surrender and  cancellation  of this Note, if mutilated,  the Company shall
execute and deliver a new Note of like tenor and date.

          (g) This Note shall be construed and enforced in  accordance  with the
laws of the State of New York,  without  giving  effect to the  conflicts of law
principles  thereof or the actual domiciles of the parties.  The Company and the
Holder hereby consent to the jurisdiction of the Courts of the State of New York
and the United States District  Courts  situated  therein in connection with any
action  concerning the provisions of this Note  instituted by the Holder against
the Company.

                                       10

          (h) The Company (i) agrees that any legal suit,  action or  proceeding
arising out of or relating to this Note shall be instituted  exclusively  in the
New  York  State  Supreme  Court,  County  of New York or in the  United  States
District Court for the Southern  District of New York, (ii) waives any objection
which the Company may have now or hereafter  based upon forum non  conveniens or
to the venue of any such  suit,  action  or  proceeding,  and (iii)  irrevocably
consents to the jurisdiction of the New York State Supreme Court,  County of New
York and the United States District Court for the Southern  District of New York
in any such suit, action or proceeding. The Company further agrees to accept and
acknowledge service of any and all process which may be served in any such suit,
action or proceeding in the New York State Supreme Court,  County of New York or
in the United States  District  Court for the Southern  District of New York and
agrees that service of process upon the Company, mailed by certified mail to the
Company's address,  will be deemed in every respect effective service of process
upon Payor,  in any suit,  action or  proceeding.  FURTHER,  THE COMPANY  HEREBY
WAIVES TRIAL BY JURY IN ANY ACTION TO ENFORCE THIS NOTE AND IN  CONNECTION  WITH
ANY DEFENSE, COUNTERCLAIM OR CROSSCLAIM ASSERTED IN ANY SUCH ACTION.

          (i) No  recourse  shall be had for the  payment  of the  principal  or
interest of this Note against any  incorporator  or any past,  present or future
stockholder  officer,  director,  agent or  attorney of the  Company,  or of any
successor  corporation,  either directly or through the Company or any successor
corporation,  otherwise, all such liability of the incorporators,  stockholders,
officers, directors, attorneys and agents being waived, released and surrendered
by the Holder hereof by the acceptance of this Note.

          (j) This Note shall bind the Company and its successors and assigns.


                      [THIS SPACE INTENTIONALLY LEFT BLANK]

IN WITNESS WHEREOF, the undersigned has duly executed and delivered this Note as
of the day and year first above written.

                                            APPLIED DNA SCIENCES, INC.


                                       By:  ________________________________
                                            Name:
                                            Title:

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