Document:

NEITHER THIS SECURITY NOR ANY SECURITIES THAT MAY BE ISSUED UPON CONVERSION
HEREOF HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
"SECURITIES ACT"), APPLICABLE STATE SECURITIES LAWS, OR APPLICABLE LAWS OF ANY
FOREIGN JURISDICTION. SUCH SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT
WITH A VIEW TO DISTRIBUTION OR RESALE. SUCH SECURITIES MAY NOT BE SOLD, OFFERED,
PLEDGED, HYPOTHECATED, RENOUNCED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF THE
CONSENT OF THE COMPANY, UNLESS WITH RESPECT TO SUCH SECURITIES THERE IS (A) AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND ANY APPLICABLE
STATE SECURITIES LAWS AND COMPLIANCE WITH APPLICABLE LAWS OF ANY FOREIGN
JURISDICTION, OR (B) AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT (I)
SUCH REGISTRATION IS NOT REQUIRED, AND (II) SUCH FOREIGN JURISDICTION LAWS HAVE
BEEN SATISFIED AND OTHERWISE COMPLIED WITH.

                           BioForce Nanosciences, Inc.
               Warrant for the Purchase of Shares of Common Stock

No.____________                                               ___________ shares

THIS CERTIFIES THAT, for value received, _____, (the "Holder"), an individual,
is entitled to subscribe for and purchase from BioForce Nanosciences, Inc., a
Delaware corporation (the "Company"), at any time from the date hereof through
and including the Expiration Date set forth below (the "Exercise Period"), ____
shares of Common Stock, par value $0.01 per share ("Common Stock"). The shares
purchasable hereunder upon exercise of this Warrant, will be fully paid and
nonassessable shares of Common Stock (the "Shares") and shall be exercisable at
an exercise price (the "Exercise Price"), prior to any adjustment, at $__ per
share subject to the limitations, terms and conditions set forth herein.

Transfer, assignment or hypothecation of this Warrant by the Holder may be only
in accordance with and subject to the terms, conditions and other provisions of
this Warrant. The term "Holder," as used herein, shall include the original
Holder and only such persons to whom this Warrant is transferred in strict
conformity with the terms and conditions set forth or incorporation by reference
herein. As used herein, the term "Warrant" shall mean and include this Warrant
and any warrant or warrants hereafter issued in consequence of the exercise or
transfer of this Warrant, in whole or in part.

      1. The "Expiration Date" of this Warrant is five years from the date of
this Warrant.

      2. This Warrant may be exercised during the Exercise Period as to the
whole or any lesser number of whole Shares by the surrender of this Warrant
(with the Form of Election at the end hereof duly completed and executed) to the
Company, marked to the attention of its Chief Executive Officer or such other
place as is designated in writing and delivered to Holder by the Company,
followed by a wire transfer to the bank account of the Company in an amount
equal to the Exercise Price multiplied by the number of Shares covered by such
exercise (the "Shares Purchase Price").

<PAGE>

      3. Exercise of this Warrant shall be deemed to have been effected as of
the close of the business day on which the Company has received the last of this
Warrant, a duly executed Form of Election and the Shares Purchase Price. Upon
each exercise of this Warrant, the Holder shall be deemed to be the holder of
record of the Shares issuable upon such exercise notwithstanding that the stock
transfer books of the Company shall then be closed. As soon as practicable after
each such exercise of this Warrant, the Company shall issue and deliver to the
Holder a certificate or certificates for the Shares issuable upon such exercise,
registered in the name of the Holder or its designee. If this Warrant should be
exercised in part only, the Company shall, upon surrender of this Warrant for
cancellation, execute and deliver a new warrant evidencing the right of the
Holder to purchase the balance of the Shares subject to purchase hereunder.

      4. The Company shall maintain a register (the "Warrant Register") on which
the names and addresses of the persons to whom the Warrant is issued and shall
be entitled to treat the registered holder of the Warrant on the Warrant
Register as the owner in fact thereof for all purposes and shall not be bound to
recognize any equitable or other claim to or interest in such Warrant on the
part of any other person and shall not be liable for any registration or
transfer of Warrants which are registered or to be registered in the name of a
fiduciary or the nominee of a fiduciary unless made with the actual knowledge
that a fiduciary or nominee is committing a breach of trust in requesting such
registration or transfer, or with the knowledge of such facts that its
participation therein amounts to bad faith. Subject to compliance with
applicable securities laws and any other restrictions set forth herein, this
Warrant shall be transferable only with the prior written consent of the
Company, and such consent shall not be unreasonably withheld; such transfer
shall be reflected on the books of the Company only upon delivery thereof with
the form of Assignment at the end hereof duly completed by the Holder or by his
duly authorized attorney or representative accompanied by proper evidence of
succession, assignment or authority to transfer. In all cases of transfer by an
attorney, the original power of attorney, duly approved or an official copy
thereof duly certified, shall be deposited with the Company. In case of transfer
by executors, administrators, guardians or other legal representative, duly
authenticated evidence of their authority shall be produced, and may be required
to be deposited with the Company in its discretion. Upon any registration of
transfer, the Company shall deliver a new warrant or warrants exchanged, at the
option of the Holder thereof, for another warrant, or other warrants of
different denominations, of like tenor and representing in the aggregate the
right to purchase a like number of shares of Common Stock upon surrender to the
Company or its duly authorized agent. Notwithstanding the foregoing, the Company
shall have no obligation to cause warrants to be transferred on its books to any
person, unless the Holder of such warrants shall furnish to the Company
information requested by the Company as it relates to compliance with the Act
and applicable state securities law, in accordance with the provisions of
Section 10 hereof.

      5. The Company shall at all times reserve and keep available out of its
authorized and unissued Common Stock, solely for the purpose of providing for
the exercise of this Warrant, such number of Shares as shall, from time to time,
be sufficient therefor.

                                      -2-
<PAGE>

      6. The Exercise Price shall be subject to adjustment from time to time as
follows:

            (a) In case the Company shall (i) declare a dividend or make
distribution on outstanding shares of its Common Stock in shares of Common
Stock, (ii) subdivide or reclassify the outstanding shares of Common Stock into
a greater number of shares, or (iii) combine or reclassify the outstanding
shares of Common Stock into a lesser number of shares, the Exercise Price in
effect at the time of the record date for such dividend or distribution on the
effective date of such subdivision, combination or reclassification shall be
adjusted so that it shall equal the price determined by multiplying the Exercise
Price then in effect by a fraction, the denominator of which shall be the number
of shares of Common Stock outstanding immediately after giving effect to such
action, and of which the numerator shall be the number of shares of Common Stock
outstanding immediately prior to such action. Such adjustment shall be made
successively whenever any event specified above shall occur.

            (b) Whenever the Exercise Price payable upon exercise of this
Warrant is adjusted pursuant to subsection (a) above, the number of Shares
purchasable upon exercise of this Warrant shall simultaneously be adjusted by
multiplying the number of Shares initially issuable upon exercise of this
Warrant by the initial Exercise Price in effect on the date hereof and dividing
the product so obtained by the Exercise price, as adjusted.

            (c) All calculations under this Section 6 shall be made to the
nearest one-hundredth of a cent and to the nearest whole Share.

      7. The following shall apply subject to the provisions of Section 8:

            (a) In case of any consolidation with or merger of the Company with
or into another corporation (other than merger or consolidation in which the
Company is the continuing or surviving corporation), or in case of any sale,
lease or conveyance to another corporation of the property of the Company as an
entirety or substantially as an entirety, appropriate provision shall be made so
that the Holder shall have the right thereafter to receive upon exercise of this
Warrant solely the kind and amount of shares of stock and other securities,
property cash or any combination thereof receivable upon such consolidation,
merger, sale, lease or conveyance and, in any such case, effective provisions
shall be made in its articles of incorporation or otherwise, if necessary, in
order to effect such agreement. Such agreement shall provide for adjustments,
which shall be nearly as equivalent as practicable to the adjustments in Section
6.

            (b) In case of any reclassification or change in the Shares of
Common Stock issuable upon exercise of this Warrant (other than a change in par
value, or from par value to no par value, or as a result of subdivision or
combination, but including any change in the shares into two or more classes or
series of shares) or in case of any consolidation or merger of another
corporation into the Company in which the Company is the continuing corporation
and in which there is a reclassification or change (including a change to the
right to receive cash or other property) in the Shares of Common Stock (other
than a change in par value, or from par value to no par value, or as a result of
a subdivision or combination, but including any change in the Shares into two or
more classes or series of Shares), the Holder shall have the right thereafter to
receive upon exercise of this Warrant solely the kind and amount of shares of
stock and other securities, property, cash or any combination thereof receivable
by the Holder of the number of Shares for which this Warrant might have been
exercised immediately prior to such reclassification, change, consolidation or
merger. Thereafter, appropriate provision (as reasonably determined by the Board
of Directors) shall be made for adjustment which shall be as nearly equivalent
as practicable to the adjustments in Section 6.

                                      -3-
<PAGE>

            (c) The above provisions of this Section 7 shall similarly apply to
successive reclassification and changes in Shares of Common Stock and to
successive consolidations, mergers, sales or conveyances.

      8. Upon written notice to the Holder of the Company's intent to consummate
a Change of Control (as defined below), the Company shall have the right,
exercisable in the Company's sole discretion, to require that the Holder
exercise the Holder's right to purchase all the shares that the Holder has a
right to purchase under this Warrant within thirty days of such notice. If the
Holder fails to exercise such right as to all the shares that the Holder has a
right to purchase within such thirty-day period, then the Exercise Period with
respect to the remaining Shares not so purchased and the Holder's other rights
under this Warrant shall immediately terminate. "Change of Control" means, with
respect to the Company, the occurrence of any one or more of the following:

            (a) Any individual, partnership, corporation, limited liability
company, or other organization, or combination thereof, (other than those
persons in control of the Company as of the date hereof) becomes the beneficial
owner, directly or indirectly, of securities of the Company representing more
than seventy percent (70%) of the combined voting power of the Company's then
outstanding securities; or

            (b) The stockholders of the Company approve (i) a plan of complete
liquidation of the Company, (ii) an agreement for the sale or disposition of all
or substantially all the Company's assets, or (iii) a merger, consolidation, or
reorganization of the Company with or involving any other entity, other than a
merger, consolidation, or reorganization that would result in the voting
securities of the Company outstanding immediately prior thereto continuing to
represent (either by remaining outstanding or by being converted into voting
securities of the surviving entity), more that fifty percent (50%) of the
combined voting power of the voting securities of the Company (or such surviving
entity) outstanding immediately after such merger, consolidation, or
reorganization.

      9. The issue of any stock or certificate upon the exercise of this Warrant
shall be made without charge to the Holder for any tax in respect of the issue
of such certificate. The Company shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of any certificate in a name other than that of the Holder and the
Company shall not be required to issue or deliver any such certificates unless
and until the person or persons requesting the issue thereof shall have paid to
the Company the amount of such tax or shall have established to the satisfaction
of the Company that such tax has been paid.

      10. Unless registered under the Securities Act of 1933, as amended (the
"Act"), and in addition to any other requirement contained herein or a separate
written agreement, this Warrant and the Shares or other securities issued upon
exercise hereof shall not be transferable unless, in the opinion of counsel
reasonably satisfactory to the Company, an exemption from registration under

                                      -4-
<PAGE>

applicable securities laws is available. This Warrant, the Shares and other
securities issued upon the exercise hereof shall be subject to a stop-transfer
and the certificate or certificates evidencing any such Shares or securities
shall bear the following legend and any other legend which counsel for the
Company may deem necessary or advisable:

      THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
      THE SECURITIES ACT OF 1933, AS AMENDED, NOR UNDER ANY STATE SECURITIES
      ACT. THEY MAY NOT BE SOLD, TRANSFERRED, PLEDGED, OR HYPOTHECATED IN THE
      ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO THE SHARES
      UNDER SUCH ACTS OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT
      SUCH REGISTRATION IS NOT REQUIRED.

      11. Upon receipt of evidence satisfactory to the Company relating to the
loss, theft, destruction or mutilation of this Warrant, and upon surrender and
cancellation of this Warrant if mutilated, and upon reimbursement of the
Company's reasonable incidental expenses, the Company shall execute and deliver
to the Holder thereof a new warrant of like date, tenor and denomination.

      12. The Holder of this Warrant shall not have, solely on account of such
status, any rights of a stockholder of the Company, either at law or in equity,
or to any notice of meetings of stockholders or of any other proceedings of the
Company.

      13. This Warrant shall be governed by and construed in accordance with the
laws of the State of Delaware.

      14. The Holder, if requested by the Company or the managing underwriter(s)
of a public offering, shall not sell, dispose of, transfer, make any short sale
of, grant any option for the purchase of, or enter into any hedging or similar
transaction with the same economic effect as a sale of any Common Stock (or
other securities) of the Company held by the Holder, for a period of time
specified by the managing underwriter(s). Holder agrees to execute and deliver
such other agreements as may be reasonably requested by the Company or the
managing underwriter(s) that are consistent with the foregoing or that are
necessary to give further effect thereto. In order to enforce the foregoing
covenant, the Company may impose stop-transfer instructions with respect to such
Common Stock (or other securities) until the end of such period.

                                      -5-
<PAGE>

      The Company warrants the due authorization, execution and delivery of this
Warrant as of the ____________.

                                             BIOFORCE NANOSCIENCES, INC.

                                             By:________________________________

                                             Name:______________________________

                                             Title:_____________________________

                                      -6-
<PAGE>

                              ELECTION TO PURCHASE

The Undersigned Holder hereby irrevocably elects (check one): [ ] to exercise
the within Warrant to purchase ________________________ Shares* of Common Stock
issuable upon the exercise thereof; [ ] to convert the within Warrant to shares
of Common Stock pursuant to Section 13 thereof. The undersigned requests that
certificates for such Shares, or, in the case of conversion, the number of
Conversion Shares issuable pursuant to Section 13 thereof, be issued in his/her
name and delivered to him/her/it at the following address:

________________________________________________________________________________

Date:______________

________________________________________________________________________________
                                Signature(s)(**)

________________________________________________________________________________

                                      -7-
<PAGE>

                                   ASSIGNMENT

      FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
the within Warrant to the extent of ________________ Shares (*) purchasable upon
exercise thereof to____________________________________________________________,
whose address is _________________________________________________ and hereby
irrevocably constitute and appoint ____________________________ his/hers/its
Attorney to transfer said Warrant on the book of the Company, with full power of
substitution.

Date:_______________

________________________________________________________________________________
                                Signature(s)(**)

________________________________________________________________________________

*     If the Warrant is to be exercised or transferred in its entirety, insert
      the word "All" before "Shares"; otherwise insert the number of shares then
      purchasable on the exercise thereof as to which transferred or exercised.
      If the Warrant shall not be transferred or exercised to purchase all
      shares purchasable upon exercise thereof, that a new warrant to purchase
      the balance of such shares be issued in the name of, and delivered to, the
      Holder at the address stated below.

**    Signatures(s) must conform exactly to the name(s) of the Holder as set
      forth on the first page of this Warrant.

                                      -8-THE WARRANT REPRESENTED BY THIS CERTIFICATE AND THE SECURITIES ISSUABLE
      UPON EXERCISE THEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
      1933. AS AMENDED, NOR UNDER ANY STATE SECURITIES ACT. THEY MAY NOT BE
      SOLD, TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A
      REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO THE WARRANT OR SUCH
      SECURITIES UNDER SUCH ACTS OR AN OPINION OF COUNSEL SATISFACTORY TO THE
      COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

                           BioForce Nanosciences, Inc.
               Warrant for the Purchase of Shares of Common Stock

                                                                  250,000 shares

      THIS CERTIFIES THAT, for value received, Gulfstream Capital Group, LLC
("Holder" or "Gulfstream"), a Delaware corporation, is entitled to subscribe for
and purchase from BioForce Nanosciences, Inc., a Delaware corporation (the
"Company"), at any time from the date hereof through and including the
Expiration Date set forth below (the "Exercise Period"), 250,000 shares of
Common Stock, par value $0.01 per share ("Common Stock"), subject to the vesting
schedule specified below. The shares purchasable hereunder, upon exercise of
this Warrant, will be fully paid and nonassessable shares of Common Stock (the
"Shares") and shall be exercisable at an exercise price (the "Exercise Price"),
prior to any adjustment, at $1.00 per share subject to the limitations, terms
and conditions set forth herein. The right to purchase the Shares shall be
subject to the following vesting schedule:

<TABLE>
<CAPTION>
==========================================================================================================
                                                        Number of                    Cumulative Total of
        Vesting Date              Vesting        Shares Subject to Vested         Shares Subject to Vested
                                 Schedule             Purchase Right                   Purchase Right
----------------------------------------------------------------------------------------------------------
<S>                               <C>                     <C>                              <C>
April 30 2003                      33.3%                  83,333                            83,333
----------------------------------------------------------------------------------------------------------
October 30, 2003                  16.66%                  41,666                           124,999
----------------------------------------------------------------------------------------------------------
April 30, 2004                    16.67%                  41,667                           166,666
----------------------------------------------------------------------------------------------------------
October 30, 2004                  16.66%                  41,666                           208,332
----------------------------------------------------------------------------------------------------------
April 30, 2005                    16.67%                  41,668                           250,000
==========================================================================================================
</TABLE>

                                      -1-
<PAGE>

The shares under this Warrant shall continue to vest as long as the Holder is
engaged by the Company pursuant to a signed Consulting Agreement by and between
Gulfstream and the Company (the "Consulting Agreement"). If the Holder's service
with the Company terminates for any reason, this Warrant shall no longer
continue to vest as specified above. The Holder will, however, have the option
of exercising the portion of the Warrant that was vested prior to termination.
Transfer, assignment or hypothecation of this Warrant by the Holder may be only
in accordance with and subject to the terms, conditions and other provisions of
this Warrant. The term "Holder", as used herein, shall include the original
Holder and only such persons to whom this Warrant is transferred in strict
conformity with the terms and conditions set forth or incorporation by reference
herein. As used herein, the term "Warrant" shall mean and include this Warrant
and any Warrant or Warrants hereafter issued in consequence of the exercise or
transfer of this warrant, in whole or in part.

      1. This Warrant shall expire on April 30, 2007 (subsequently amended to
read April 30, 2013).

      2. This Warrant may be exercised during the Exercise Period as to the
whole or any lesser number of whole Shares by the surrender of this Warrant
(with the form of Election at the end hereof duly completed and executed) to the
Company, marked to the attention of its Chief Executive Officer or such other
place as is designated in writing and delivered to Holder by the Company,
accompanied by a check payable to the order of the Company in an amount equal to
the Exercise Price multiplied by the number of Shares covered by such exercise
(the "Shares Purchase Price").

      3. Exercise of this Warrant shall be deemed to have been effected as of
the close of the business day on which the Company has received the last of this
Warrant, a duly executed form of election and the Shares Purchase Price. Upon
each exercise of this Warrant, the Holder shall be deemed to be the holder of
record of the Shares issuable upon such exercise notwithstanding that the stock
transfer books of the Company shall then be closed. As soon as practicable after
each such exercise of this Warrant, the Company shall issue and deliver to the
Holder a certificate or certificates for the Shares issuable upon such exercise,
registered in the name of the Holder or its designee. If this Warrant should be
exercised in part only, the Company shall, upon surrender of this Warrant for
cancellation, execute and deliver a new Warrant evidencing the right of the
Holder to purchase the balance of the Shares subject to purchase hereunder.

      4. The Company shall maintain a register (the "Warrant Register") on which
the names and addresses of the persons to whom the Warrant is issued and shall
be entitled to treat the registered holder of any Warrant on the Warrant
Register as the owner in fact thereof for all purposes and shall not be bound to
recognize any equitable or other claim to or interest in such Warrant on the
part of any other person and shall not be liable for any registration or
transfer of Warrants which are registered or to be registered in the name of a
fiduciary or the nominee of a fiduciary unless made with the actual knowledge
that a fiduciary or nominee is committing a breach of trust in requesting such
registration or transfer, or with the knowledge of such facts that its
participation therein amounts to bad faith. Subject to compliance with
applicable securities laws and any other restrictions set forth herein, this
Warrant shall be transferable only with the prior written consent of the
Company, and such consent shall not be unreasonably withheld; such transfer
shall be reflected on the books of the Company only upon delivery thereof with
the form of Assignment at the end hereof duly completed by the Holder or by his
duly authorized attorney or representative accompanied by proper evidence of
succession, assignment or authority to transfer. In all cases of transfer by an

                                      -2-
<PAGE>

attorney, the original power of attorney, duly approved or an official copy
thereof duly certified, shall be deposited with the Company. In case of transfer
by executors, administrators, guardians or other legal representative, duly
authenticated evidence of their authority shall be produced, and may be required
to be deposited with the Company in its discretion. Upon any registration of
transfer, the Company shall deliver a new Warrant or Warrants exchanged, at the
option of the Holder thereof, for another Warrant, or other Warrants of
different denominations, of like tenor and representing in the aggregate the
right to purchase a like number of shares of Common Stock upon surrender to the
Company or its duly authorized agent. Notwithstanding the foregoing, the Company
shall have no obligation to cause Warrants to be transferred on its books to any
person, unless the Holder of such Warrants shall furnish to the Company evidence
of compliance with the Act and applicable state securities law, in accordance
with the provisions of Section 10 hereof.

      5. The Company shall at all times reserve and keep available out of its
authorized and unissued Common Stock, solely for the purpose of providing for
the exercise of this Warrant, such number of Shares as shall, from time to time,
be sufficient therefore.

      6. The Exercise Price shall be subject to adjustment from time to time as
follows:

            (a) In case the Company shall (i) declare a dividend or make
distribution on outstanding shares of its Common Stock in shares of Common
Stock, (ii) subdivide or reclassify the outstanding shares of Common Stock into
a greater number of shares, or (iii) combine or reclassify the outstanding
shares of Common Stock into a lesser number of shares, the Exercise Price in
effect at the time of the record date for such dividend or distribution on the
effective date of such subdivision, combination or reclassification shall be
adjusted so that it shall equal the price determined by multiplying the Exercise
Price then in effect by a fraction, the denominator of which shall be the number
of shares of Common Stock outstanding immediately after giving effect to such
action, and of which the numerator shall be the number of shares of Common Stock
outstanding immediately prior to such action. Such adjustment shall be made
successively whenever any event specified above shall occur.

            (b) Whenever the Exercise Price payable upon exercise of this
Warrant is adjusted pursuant to subsection (a) above, the number of Shares
purchasable upon exercise of this Warrant shall simultaneously be adjusted by
multiplying the number of Shares initially issuable upon exercise of this
Warrant by the initial Exercise Price in effect on the date hereof and dividing
the product so obtained by the Exercise price, as adjusted.

                                      -3-
<PAGE>

            (c) All calculations under this Section 6 shall be made to the
nearest one-hundredth of a cent and to the nearest whole Share.

      7. (a) In case of any consolidation with or merger of the Company with or
into another corporation (other than merger or consolidation in which the
Company is the continuing or surviving corporation), or in case of any sale,
lease or conveyance to another corporation of the property of the Company as an
entirety or substantially as an entirety, appropriate provision shall be made so
that the Holder shall have the right thereafter to receive upon exercise of this
Warrant solely the kind and amount of shares of stock and other securities,
property cash or any combination thereof receivable upon such consolidation,
merger, sale, lease or conveyance and, in any such case, effective provisions
shall be made in its articles of incorporation or otherwise, if necessary, in
order to effect such agreement. Such agreement shall provide for adjustments,
which shall be nearly as equivalent as practicable to the adjustments in Section
6.

            (b) In case of any reclassification or change in the Shares of
Common Stock issuable upon exercise of this Warrant (other than a change in par
value, or from par value to no par value, or as a result of subdivision or
combination, but including any change in the shares into two or more classes or
series of shares) or in case of any consolidation or merger of another
corporation into the Company in which the Company is the continuing corporation
and in which there is a reclassification or change (including a change to the
right to receive cash or other property) in the Shares of Common Stock (other
then a change in par value, or from par value to no par value, or as a result of
a subdivision or combination, but including any change in the Shares into two or
more classes or series of Shares), the Holder shall have the right thereafter to
receive upon exercise of this Warrant solely the kind and amount of shares of
stock and other securities, property, cash or any combination thereof receivable
by the Holder of the number of Shares for which this Warrant might have been
exercised immediately prior to such reclassification, change, consolidation or
merger. Thereafter, appropriate provision (as reasonably determined by the Board
of Directors) shall be made for adjustment which shall be as nearly equivalent
as practicable to the adjustments in Section 6.

            (c) The above provisions of this Section 7 shall similarly apply to
successive reclassification and changes in Shares of Common Stock and to
successive consolidations, mergers, sales or conveyances.

      8. The issue of any stock or certificate upon the exercise of this Warrant
shall be made without charge to the Holder for any tax in respect of the issue
of such certificate. The Company shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of any certificate in a name other than that of the Holder and the
Company shall not be required to issue or deliver any such certificates unless
and until the person or persons requesting the issue thereof shall have paid to
the Company the amount of such tax or shall have established to the satisfaction
of the Company that such tax has been paid.

                                      -4-
<PAGE>

      9. Unless registered under the Securities Act of 1933, as amended (the
"Act), and in addition to any other requirement contained herein or a separate
written agreement, the Warrants and Shares or other securities issued upon
exercise of the Warrants shall not be transferable unless, in the opinion of
counsel reasonably satisfactory to the Company, an exemption from registration
under applicable securities laws is available. The Warrants, Shares and other
securities issued upon the exercise of this Warrant shall be subject to a
stop-transfer and the certificate or certificates evidencing any such Shares or
securities shall bear the following legend and any other legend which counsel
for the Company may deem necessary or advisable.

      THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
      THE SECURITIES ACT OF 1933, AS AMENDED, NOR UNDER ANY STATE SECURITIES
      ACT. THEY MAY NOT BE SOLD, TRANSFERRED, PLEDGED, OR HYPOTHECATED IN THE
      ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO THE SHARES
      UNDER SUCH ACTS OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT
      SUCH REGISTRATION IS NOT REQUIRED.

      10. Upon receipt of evidence satisfactory to the Company of the loss,
theft, destruction or mutilation of any Warrant and upon surrender and
cancellation of any Warrant if mutilated, and upon reimbursement of the
Company's reasonable incidental expenses, the Company shall execute and deliver
to the Holder thereof a new warrant of like date, tenor and denomination.

      11. The Holder of any such Warrant shall not have, solely on account of
such status, any rights of a stockholder of the Company, either at law or in
equity, or to any notice of meetings of stockholders or of any other proceedings
of the Company.

      12. This Warrant shall be governed by and construed in accordance with the
laws of the State of Delaware.

      13. If the Company proposes to file a Registration Statement under the
Securities Act (other than in connection with an exchange offer, a "rights"
offering to shareholders, a registration statement of Form S-8 or Form S-4 or
any successor forms relating to employee benefit plans, an acquisition of
another entity or in connection with a dividend reinvestment plan, an employee
benefit plan, the conversion of any convertible securities, or a stand-by
underwriting with respect to the call of a warrant, option, right or convertible
security for redemption) with respect to shares of Common Stock, the Company
shall give written notice of such proposed filing to Holder at least thirty (30)
calendar days before the anticipated filing date of such Registration Statement
or, in the event that the Company has not formulated its intent to file such
Registration Statement at least thirty (30) calendar days before the anticipated
filing date of such Registration Statement, as soon as practicable upon the
formation by the Company of such intent. The notice shall specify the
information required to be provided to the Company by Holder and shall offer to
Holder the opportunity to include in the Piggy Back Registration Statement such
number of Shares as Holder may request. The Company shall not be required to
honor any such request (i) if, in the opinion of counsel to the Company

                                      -5-
<PAGE>

reasonably acceptable to Holder, registration under the Act is not required for
the transfer of the Shares in a manner proposed by Holder; or (ii) to register
in the aggregate fewer than 10,000 Shares. In the case of an underwritten "firm
commitment basis" public offering of shares of its common stock, (an
"Underwritten Offering"), the Company shall use its best efforts to cause the
managing underwriter of the proposed underwritten offering to permit, such
Shares to be included in the proposed underwritten offering on the same terms
and conditions as applicable to the shares of Common Stock offered by the
Company and for the account of any person other than the Company, as the case
may be.

      Notwithstanding the foregoing if the managing underwriter of an
Underwritten Offering shall advise the Company in writing that, in its opinion,
the distribution of all or a portion of the Shares requested by Holder to be
included in the Piggy Back Registration Statement concurrently with the shares
of Common Stock being registered by the Company would materially adversely
affect the distribution of such securities by the Company for its own account,
or for the account of any person or persons that have asserted demand
registration rights under any other agreement with respect to such registration,
then such requested Shares shall not be included in the Piggy-Back Registration
Statement. If the managing underwriter elects to include less than all Shares,
then the number of Shares shall be pro rata with (i) other securities properly
requested to be included in the Piggy Back Registration Statement by other
holders pursuant to piggy back or incidental registration rights under any other
agreement or (ii) shares included in the Piggy Back Registration Statement for
the account of any corporate officer or director of the Company and any of their
respective family members, whichever results in the registration of the greater
number of Shares for Holder's account. The Company shall not be required to
maintain in effect the Piggy Back Registration Statement as it relates to Shares
beyond the period necessary to comply with the Securities Act (otherwise than
pursuant to Rule 415 or any similar regulation permitting the "shelf
registration") with respect to the distribution of the Shares included therein.

      In connection with any registration of Shares, and as a condition to the
Company's obligation to register the Shares, Holder shall promptly furnish to
the Company such information regarding Holder, the proposed distribution of the
Shares by Holder and such other matters as the Company may reasonably request in
writing.

      All expenses incident to the Company's performance of or compliance with
the provisions set forth herein (other than underwriting discounts and
commissions relation to the sale of the Shares) will be borne by the Company. In
addition, the Company shall, without charge to Holder, provide Holder with
reasonable quantities of preliminary prospectuses, final prospectuses and other
material required to effect the sales of the Shares to the public.

                                      -6-
<PAGE>

      14. Notwithstanding any other term hereof, after an initial public
offering of the shares of Common Stock of the Company on a recognized stock
exchange, including NASDAQ, the Holder shall have the right, at any time, to
convert this Warrant into that number of Shares (hereinafter referred to as the
"Conversion Shares") which shall equal the product obtained by multiplying all
Shares then issuable upon exercise of the Warrant by a fraction, the denominator
or which is the Market Price of the Company's Common Stock, as defined below,
and the numerator of which is the difference between the Market Price and the
Exercise Price. Where the number of Conversion Shares equal "CS", the number of
Shares equals "S", and Exercise Price equals "EP"' and the Market Price equals
"MP", the following formula shall determine the number of Conversion Shares at
any time issuable upon conversion of this Warrant to Common Stock pursuant to
this Section 14(a):

                                 CS = S (MP-EP)
                                      ---------
                                          MP

      (b) For purposes of Section 14(a) above, the term "Market Price" of the
Company's Common Stock shall mean: (i) if the Common Stock is listed on a
national securities exchange, the average closing prices for the Common Stock
reported on such exchange for the five (5) trading days immediately preceding
the date of exercise of the rights of conversion set forth in Section 14(a) (the
"Conversion Rights"); or (ii) if the Common Stock is not listed on a national
securities exchange but is quoted on the Nasdaq Tock market (Small Cap or
National Market System), the average closing rice prices for the Common Stock on
the Nasdaq Stock Market for the five (5) trading days immediately preceding the
date of exercise of Conversion Rights; or (iii) if neither (i) nor (ii) above
applies, and "bid" and "asked" prices for the Common Stock are quoted on the
National Association of Securities Dealers, Inc. ("NASD") Bulletin Board has
averaged at lease one (1%) percent of the total number of shares of Common Stock
outstanding during the four calendar weeks immediately preceding the exercise of
the Conversion Rights, the average of the mean between the closing "bid" and
"asked" prices reported on the OTC Bulleting Board for the five (5) trading days
immediately preceding the date of exercise of Conversion Rights; or (iv), if non
of the subsections (i), (ii) or (iii) apply, as determined by the Board of
Directors of the Company.

      (c) The Conversion Rights shall be exercised in the same manner as
provided herein, except that payment of the Shares Purchase price shall not be
tendered.

      15. The Holder, if requested by the Company or the managing underwriter(s)
of a public offering, shall not sell, dispose of, transfer, make any short sale
of, grant any option for the purchase of, or enter into any hedging or similar
transaction with the same economic effect as a sale of any Common Stock (or
other securities) of the Company held by the Holder, for a period of time
specified by the managing underwriter(s). Holder agrees to execute and deliver
such other agreements as may be reasonably requested by the Company or the
managing underwriter(s) that are consistent with the foregoing or that are
necessary to give further effect thereto. In order to enforce the foregoing
covenant, the Company may impose stop-transfer instructions with respect to such
Common Stock (or other securities) until the end of such period.

                                      -7-
<PAGE>

      16. The Company warrants the due authorization, execution and delivery of
this Warrant as of the 30th day of April 2003.

                                         BioForce Nanosciences, Inc.

                                         By: /s/ Gary A. Alianell
                                             -----------------------------------
                                             Gary A. Alianell, Ph.D.
                                             President & Chief Executive Officer

                                      -8-
<PAGE>

                              ELECTION TO PURCHASE

The Undersigned Holder hereby irrevocably elects (check one): [ ] to exercise
the within Warrant to purchase ________________________ Shares* of Common Stock
issuable upon the exercise thereof; [ ] to convert the within Warrant to shares
of Common Stock pursuant to Section 14 thereof. The undersigned requests that
certificates for such Shares, or, in the case of conversion, the number of
Conversion Shares issuable pursuant to Section 14 thereof, be issued in his/her
name and delivered to him/her/it at the following address:

________________________________________________________________________________

Date:______________

________________________________________________________________________________
                                Signature(s)(**)

________________________________________________________________________________

                                      -9-
<PAGE>

                                   ASSIGNMENT

      FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
the within Warrant to the extent of ________________ Shares (*) purchasable upon
exercise thereof to____________________________________________________________,
whose address is _________________________________________________ and hereby
irrevocably constitute and appoint ____________________________ his/hers/its
Attorney to transfer said Warrant on the book of the Company, with full power of
substitution.

Date:_______________

________________________________________________________________________________
                                Signature(s)(**)

________________________________________________________________________________

* If the Warrant is to be exercised or transferred in its entirety, insert the
word "All" before "Shares"; otherwise insert the number of shares then
purchasable on the exercise thereof as to which transferred or exercised. If
such Warrants shall not be transferred or exercised to purchase all shares
purchasable upon exercise thereof, that a new Warrant to purchase the balance of
such shares be issued in the name of, and delivered to, the Holder at the
address stated below.

** Signatures(s) must conform exactly to the name(s) of the Holder as set forth
on the first page of this Warrant.

                                      -10-

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