Document:

<PAGE>

                                                                    Exhibit 10.4

                           PHOTOGEN TECHNOLOGIES, INC.

                     INCENTIVE STOCK OPTION AWARD AGREEMENT

         THIS AWARD AGREEMENT ("Agreement") is made effective as of May 17,
2000, by and between Photogen Technologies, Inc., a Nevada corporation (the
"Company"), and Taffy J. Williams, Ph.D. (the "Optionee").

                               W I T N E S S E T H:

         WHEREAS, the Company, through its Compensation Committee (the
"Committee"), desires to grant to the Optionee an incentive stock option
pursuant to its Senior Executive Long Term Incentive Compensation Plan (the
"Plan") to purchase shares of the Company's common stock, par value $.001 per
share (the "Common Stock").

         NOW, THEREFORE, the parties hereto, intending to be legally bound,
agree as follows:

         1. GRANT OF OPTION AND TAX CONSEQUENCES. Subject to the terms and
conditions of this Agreement and the Plan, a copy of which has been delivered
to the Optionee, the Company hereby grants to the Optionee the right and
option to purchase from the Company all or part of an aggregate of 3,000,000
shares of Common Stock (the "Option"). The per share exercise price at which
the shares subject to Option may be purchased by Optionee shall be $15.00,
which price equals the closing sale price of the Common Stock as reported by
the Nasdaq SmallCap Market on the effective date of grant of this Option.
This Option is intended to qualify as an Incentive Stock Option within the
meaning of Section 422A of the Internal Revenue Code of 1986, as amended (the
"Code") (except to the extent limited by Section 422(d) of the Code, in which
case such portion of the Option that does not qualify as an Incentive Stock
Option under Section 422(a) shall be a NonQualified Stock Option). Optionee
should seek advice from his or her tax advisor concerning the Federal and
State income tax consequences of the Options and disposition of the Common
Stock following exercise.

         2. TIME OF EXERCISE. The Option will vest in accordance with, and
Optionee's right to exercise this Option shall be subject to, the following:

         1,000,000 Shares covered by the Option will vest and may first be
exercised on the first anniversary date of this Agreement; 1,000,000
additional Shares will vest and may first be exercised on the second
anniversary date of this Agreement; and 1,000,000 additional Shares will vest
and may first be exercised on the third anniversary date of this Agreement.

<PAGE>

Subject to Section 5, below, the right to exercise this Option shall in all
events expire at the close of business on the tenth anniversary of the date
of this Agreement, unless such right expires and terminates sooner in
accordance with this Agreement and the Plan. The Optionee's right to exercise
this Option shall be accelerated as provided in paragraph 5(e) below and as
may be provided by action of the Committee.

         3. ISO PROVISIONS.

                  (a) Optionee represents and warrants to the Company that
Optionee does not own, directly or by reason of the applicable attribution
rules in Code Section 424(d) and related Treasury Regulations, more than 10%
of the total combined voting power of all classes of share capital of the
Company or an Affiliate.

                  (b) Optionee understands and agrees that Code Section
422(d) provides that to the extent the Fair Market Value of stock with
respect to which incentive stock options are exercisable for the first time
(and thereby vest) during any calendar year (under the Plan and any other
incentive stock option plan of the Company or an Affiliate) exceeds $100,000,
such excess options will be non-qualified stock options. Accordingly,
Optionee agrees that to the extent this Option first becomes exercisable in
any year with respect to stock whose Fair Market Value exceeds $100,000, the
remaining portion of the Option that first becomes exercisable in that year
shall be a Non-Qualified Stock Option.

                  (c) Optionee agrees to notify the Company in writing
immediately after Optionee makes a Disqualifying Disposition of any Shares
acquired pursuant to the exercise of the Option. A "Disqualifying
Disposition" is any disposition (including any sale) of such Shares before
the later of (i) two years after the date the Optionee was granted the Option
hereunder, or (ii) one year after the date the Optionee acquired Shares by
exercising any part of the Option. If the Participant has died before such
stock is sold, these holding period requirements do not apply and no
Disqualifying Disposition can occur thereafter.

         4. METHOD OF EXERCISE AND PAYMENT FOR SHARES. This Option shall be
exercised by written notice directed to the Company at its principal office,
specifying the number of Shares to be acquired upon such exercise and
indicating that the exercise is being paid for (i) in cash, (ii) if
applicable, by a commitment by a broker-dealer to pay to the Company that
portion of any sale proceeds receivable by the Optionee upon the exercise of
the Option and sale of underlying Shares, or (iii) in a cashless exercise
whereby the number of Shares to be acquired shall be equal to the product of
(x) the number of Shares as to which the Option is being exercised,
multiplied by (y) a fraction, the numerator of which is the Fair Market Value
of the Shares as of the close of business on the date of exercise, minus the
Option Price of the Shares and the denominator of which is the said Fair
Market Value per share. Full payment for the Shares to be purchased on
exercise shall

                                       -2-
<PAGE>

accompany the notice, as applicable. The Option may be exercised by the
designated beneficiary or legal representative of Optionee in accordance with
Section 8 of the Plan.

         5. TERMINATION OF OPTION. Optionee is a party to that certain
Employment Agreement with the Company dated as of May 17, 2000 (the
"Employment Agreement"). Section 8 of the Employment Agreement provides that
the Employment Agreement and Optionee's employment by the Company may be
terminated upon the occurrence of certain events. The effective date of the
termination under the Employment Agreement is referred to herein as the
"Effective Date." The Options subject to this Agreement will terminate in
accordance with the following provisions if the Employment Agreement
terminates:

                  (a) If the Employment Agreement is terminated pursuant to
Sections 8(b)(i)(1) or (2) or Section 8(b)(ii) thereof, all Options that were
not vested before the Effective Date and all vested Options that Optionee
does not exercise before the Effective Date shall terminate as of the
Effective Date.

                  (b) If the Employment Agreement is terminated pursuant to
Section 8(b)(i)(3) thereof, Optionee (or his estate or personal
representative) will have 12 months after the Effective Date to exercise any
Options that vested in accordance with this Agreement before the Effective
Date. All Options that were not vested before the Effective Date shall
terminate as of the Effective Date and all vested Options that Optionee does
not exercise within such 12-month period shall terminate as of the end of
such 12-month period.

                  (c) If the Employment Agreement is terminated pursuant to
Section 8(b)(iii) thereof, the entire Option will immediately vest and will
remain exercisable for the remaining term of the Option.

                  (d) If the parties fail to renew this Agreement after the
Initial or any Renewal Term, all vested Options will remain exercisable for
the remaining term of the Option.

                  (e) Upon a termination of employment related to a Change in
Control, Options shall be treated in the manner set forth in Section 10 of
the Plan.

         6. ADJUSTMENT. The Committee shall make adjustments to the aggregate
number and kind of shares or other securities subject to this Option and in
the purchase price of this Option to reflect any change in the capitalization
of the Company as contemplated in Section 4(b) of the Plan.

                                       -3-
<PAGE>

         7. OPTION NON-ASSIGNABLE AND NON-TRANSFERABLE. This Option and all
rights hereunder shall be non-assignable and non-transferable other than by
will or the laws of descent and distribution and shall be exercisable during
the Optionee's lifetime only by the Optionee or the Optionee's guardian or
legal representative. The Plan and this Agreement shall be binding upon the
Optionee and any permitted successors and assigns.

         8. LIMITATION OF RIGHTS.

                  (a) No Rights as an Employee. Nothing in this Agreement or
the Plan shall be deemed to: create or affect any contract of employment
between the Optionee and Company or an Affiliate; prevent the Company or an
Affiliate from terminating Optionee's employment; give Optionee a right to be
retained in employment by the Company or any Affiliate for any period of
time; confer on any person any right to be selected as a Participant under
the Plan or the right to any other compensation, remuneration or benefits
(except to the extent expressly set forth in this Agreement).

                  (b) No Rights as a Stockholder. The Optionee shall have no
rights as a stockholder with respect to the shares covered by this Option
until the date the Optionee tenders full payment of the exercise price for
the portion of the Option being exercised and the issuance of a stock
certificate therefor, and no adjustment will be made for any dividends or
other rights for which the record date is prior to the date such certificate
is issued.

         9. STOCK LEGEND. The Optionee hereby represents and warrants to the
Company that upon exercise of any portion of the Option hereunder that the
Optionee will be acquiring such Shares for his or her own account, for
investment and not with a view to, or for the sale in connection with, the
distribution of any such Shares except in compliance with applicable
securities laws. The Optionee hereby agrees that the following legend shall
be endorsed upon the certificates evidencing the Optionee's Shares issued
pursuant to the exercise of this Option (unless there is an effective
registration covering such Shares):

                  The Shares evidenced by this certificate have not been
                  registered under the Securities Act of 1933, as amended, or
                  under state securities laws to the extent applicable. The
                  Shares may not be sold, offered for sale, or otherwise
                  transferred in the absence of an effective registration
                  statement under said Act (and any registration or
                  qualification as may be required under such state laws) or an
                  opinion of counsel satisfactory to the Company and its counsel
                  that such registration or qualification is not required.

                                       -4-
<PAGE>

         10. PLAN GOVERNS. The Optionee acknowledges that he or she has
received and reviewed a copy of the Company's Plan and acknowledges that the
Award and this Agreement are subject to all the terms and provisions of the
Plan which are applicable to Incentive Stock Options. All capitalized terms
not otherwise defined in this Agreement shall have the meanings given to them
in the Plan. In the event of any inconsistency between the term of this
Agreement and the Plan, the terms of the Plan (all of which are incorporated
in this Agreement by reference) shall prevail; provided, however, that the
provisions of Section 5 hereof and Section 7 of the Employment Agreement
shall prevail over any conflicting provisions of Sections 2(f) or 6(g) of the
Plan (it being agreed that the conflicting provisions of Sections 2(f) and
6(g) of the Plan shall not be applicable to this Agreement).

         11. REGISTRATION RIGHTS. The Company and Optionee agree to the
piggyback registration provisions set forth on Exhibit A attached hereto.

                  IN WITNESS WHEREOF, the Company has caused this Agreement
to be signed by one of its duly authorized officers, and the Optionee has
affixed his or her signature hereto on the date set forth above.

                                   /s/ Taffy J.  Williams, Ph.D.
                                   -----------------------------------
                                   Taffy J. Williams, Ph.D., Optionee

                              Photogen Technologies, Inc.

                              By:  /s/ Timothy C. Scott
                                   -----------------------------------
                                   Timothy C. Scott, President

                                       -5-
<PAGE>

                                                                EXHIBIT A

                          PIGGYBACK REGISTRATION RIGHTS

         1. PIGGYBACK REGISTRATIONS. (a) RIGHT TO PIGGYBACK. If, at any time
before the Company's registration statement on Form S-8 covering shares
issued pursuant to the Senior Executive Long Term Incentive Compensation Plan
becomes effective pursuant to the Securities Act the Company shall propose to
register Common Stock under the Securities Act (other than in a registration
on Form S-3 relating to sales of securities to participants in a Company
dividend reinvestment plan, Forms S-4 or S-8 or any successor forms, or in
connection with an acquisition or exchange offer or an offering of securities
solely to the existing shareholders or employees of the Company), the Company
shall give prompt written notice to the Optionee of its intention to effect
such a registration and, subject to the other terms of this Exhibit A, shall
include in such registration all Registrable Securities that are permitted
under applicable securities laws to be included in the form of registration
statement selected by the Company and with respect to which the Company has
received written requests for inclusion therein by the Optionee within 10
days after the receipt of the Company's notice (each, a "PIGGYBACK
REGISTRATION").

                  (b) PRIORITY ON PIGGYBACK REGISTRATIONS. If in the
Company's reasonable judgment, the number of securities requested to be
included in such registration exceeds the number which can be sold in such
offering without adversely affecting the marketability of the offering, the
Company may allocate or reduce the number of shares to be registered
hereunder as follows:

                  (i) first, up to that number of securities the Company
proposes to sell;

                  (ii) second, up to that number of registrable securities
requested to be included in such registration by the holders of the Series A
Convertible Exchangeable Preferred Stock;

                  (iii) third, up to that number of registrable securities
requested to be included in such registration by the holders of the Series B
Convertible Preferred Stock;

                  (iv) fourth, up to that number of registrable securities
requested to be included in such registration by the holders of Company
securities whose registration rights, in the reasonable judgment of the
Company, are senior to the registration rights of Optionee hereunder;

                  (v) fifth, up to that number of Registrable Securities
requested to be included in such registration by the Optionee; and

                  (vi) sixth, up to that number of other securities requested
to be included in such registration.

                                       -6-
<PAGE>

                  (c) RIGHT TO TERMINATE REGISTRATION. If, at any time after
giving written notice of its intention to effect a Piggyback Registration and
prior to the effective date of the registration statement filed in connection
with such registration, the Company shall determine for any reason not to
register such securities, the Company may, at its election, give written
notice of such determination to Optionee and thereupon be relieved of its
obligation to register any Registrable Securities in connection with such
registration (but not from its obligation to pay the Registration Expenses in
connection therewith as provided herein).

         2. EXPENSES OF REGISTRATION. Expenses incurred in connection with
Piggyback Registrations shall be borne by the Company.

         3. HOLDBACK AGREEMENTS. Optionee agrees, in the event of an
underwritten public offering of Common Stock under a registration statement
on Form S-1, S-3 or S-4, not to effect any offer, sale, distribution or
transfer, including a sale pursuant to Rule 144 (or any similar provision
then effect) under the Securities Act (except as part of such registration),
beginning on the date of receipt of a written notice from the Company setting
forth its intention to effect such registration and ending on the earlier of
(i) 180 days from the date of receipt of such written notice or (ii) 90 days
from the effective date of such Registration Statement.

         4. REGISTRATION PROCEDURES. Whenever the Company is under the
obligation to register Registrable Securities hereunder, the Company will use
all reasonable efforts to effect the registration and the sale of such
Registrable Securities, and pursuant thereto the Company will as
expeditiously as possible:

                  (a) subject to the provisions hereof, prepare and file with
the Commission a registration statement within 45 days of the receipt of
notice from the Optionee on any form for which the Company qualifies with
respect to such Registrable Securities and use all reasonable efforts to
cause such registration statement to become effective (provided that before
filing a registration statement or prospectus or any amendments or
supplements thereto, the Company will (i) furnish to the one counsel selected
by the Holders copies of all such documents proposed to be filed, which
documents will be subject to the review of such counsel, and (ii) notify
Optionee of Registrable Securities covered by such registration of any stop
order issued or threatened by the Commission);

                  (b) subject to the provisions hereof, prepare and file with
the Commission such amendments and supplements to such registration statement
and the prospectus used in connection therewith as may be necessary to keep
such registration statement effective for a period equal to the shorter of
(i) the time at which the registered shares are freely saleable under Rule
144(k), or (ii) the time by which all registrable securities covered by such
registration statement have been sold, and Optionee shall comply with
Company's reasonable requests in connection with such termination, and

                                       -7-
<PAGE>

comply with the provisions of the Securities Act with respect to the
disposition of all securities covered by such registration statement during
such period in accordance with the intended methods of disposition by the
sellers thereof set forth in such registration statement;

                  (c) furnish to Optionee such number of copies of such
registration statement, each amendment and supplement thereto, the prospectus
included in such registration statement (including each preliminary
prospectus) and such other documents as such seller may reasonably request in
order to facilitate the disposition of the Registrable Securities owned by
Optionee;

                  (d) use all reasonable efforts to register or qualify such
Registrable Securities under the securities or blue sky laws of such
jurisdictions as any seller reasonably requests and do any and all other acts
and things which may be reasonably necessary or advisable to enable Optionee
to consummate the disposition in such jurisdictions of the Registrable
Securities owned by Optionee (provided that the Company will not be required
to (i) qualify generally to do business in any jurisdiction where it would
not otherwise be required to qualify but for this Section 6(d), (ii) subject
itself to taxation in any jurisdiction, or (iii) consent to general service
of process in any such jurisdiction);

                  (e) notify Optionee, at any time when a prospectus relating
thereto is required to be delivered under the Securities Act, of the
happening of any event as a result of which the prospectus included in such
registration statement contains an untrue statement of a material fact or
omits any fact necessary to make the statements therein not misleading, and,
at the request of any such seller, the Company will prepare a supplement or
amendment to such prospectus so that, as thereafter delivered to the
purchasers of such Registrable Securities, such prospectus will not contain
an untrue statement of a material fact or omit to state any fact necessary to
make the statements therein not misleading; provided, however, that the
Company shall not be required to amend the registration statement or
supplement the Prospectus for a period of up to 90 days if the board of
directors determines in good faith that to do so would reasonably be expected
to have a material adverse effect on any proposal or plan by the Company to
engage in any financing, acquisition or disposition of assets (other than in
the ordinary course of business) or any merger, consolidation, tender offer
or similar transaction or would require the disclosure of any information
that the board of directors determines in good faith the disclosure of which
would be detrimental to the Company, it being understood that the period for
which the Company is obligated to keep the Registration Statement effective
shall be extended for a number of days equal to the number of days the
Company delays amendments or supplements pursuant to this provision. Upon
receipt of any notice pursuant to this Section 6(e), the Optionee shall
suspend all offers and sales of securities of the Company and all use of any
prospectus until advised by the Company that offers and sales may resume, and
shall keep confidential the fact and content of any notice given by the
Company pursuant to this Section 6(e);

                                       -8-
<PAGE>

                  (f) cause all such Registrable Securities to be listed on
each securities exchange on which similar securities issued by the Company
are then listed;

                  (g) provide a transfer agent and registrar for all such
Registrable Securities not later than the effective date of such registration
statement;

                  (h) enter into such customary agreements (including
underwriting agreements in customary form) and take all such other actions as
the reasonably request in order to expedite or facilitate the disposition of
such Registrable Securities;

                  (i) make available for inspection by a representative of
the Optionee any underwriter participating in any disposition pursuant to
such registration statement and any attorney, accountant or other agent
retained by any such seller or underwriter, all pertinent financial and other
records, pertinent corporate documents and properties of the Company, and
cause the Company's officers, directors, employees and independent
accountants to supply all information reasonably requested by any such
seller, underwriter, attorney, accountant or agent in connection with such
registration statement;

                  (j) otherwise use its reasonable efforts to comply with all
applicable rules and regulations of the Commission, and make available to its
security holders, as soon as reasonably practicable, an earnings statement
covering the period of at least 12 months beginning with the first day of the
Company's first full calendar quarter after the effective date of the
registration statement, which earnings statement shall satisfy the provisions
of Section 11(a) of the Securities Act and Rule 158 thereunder;

                  (k) in the event of the issuance of any stop order
suspending the effectiveness of a registration statement, or of any order
suspending or preventing the use of any related prospectus or suspending the
qualification of any Common Stock included in such registration statement for
sale in any jurisdiction, use all reasonable efforts promptly to obtain the
withdrawal of such order; and

                  (l) if the registration is an underwritten offering, use
all reasonable efforts to obtain a so-called "cold comfort" letter from the
Company's independent public accountants in customary form and covering such
matters of the type customarily covered by cold comfort letters.

         5. OBLIGATIONS OF OPTIONEE. Whenever Optionee sells any Registrable
Securities pursuant to a Piggyback Registration, Optionee shall be obligated
to comply with the applicable provisions of the Securities Act, including the
prospectus delivery requirements thereunder, and any applicable state
securities or blue sky laws. Optionee shall furnish to the Company such
written information regarding Optionee and any distribution proposed by
Optionee as the Company may reasonably request in writing and as shall be
reasonably required in connection with any registration,

                                       -9-
<PAGE>

qualification or compliance referred to in this Exhibit A and shall promptly
notify the Company of any changes in such information.

         6. PARTICIPATION IN UNDERWRITTEN REGISTRATIONS. Optionee may not
participate in any registration hereunder which is underwritten unless
Optionee (a) agrees to sell his securities on the basis provided in any
underwriting arrangements approved by the Company, (b) as expeditiously as
possible notifies the Company of the occurrence of any event as a result of
which any prospectus contains an untrue statement of material fact or omits
to state a material fact required to be stated therein or necessary to make
the statements therein not misleading and (c) completes and executes all
questionnaires, powers of attorney, indemnities, underwriting agreements and
other documents reasonably required under the terms of such underwriting
arrangements. The Company shall have the right to select the investment
banker(s) and manager(s) to administer an offering pursuant to a Piggyback
Registration.

         7. CERTAIN DEFINITIONS. As used in this Exhibit, the following terms
shall have the following respective meanings:

                  "COMMISSION" shall mean the U.S. Securities and Exchange
Commission.

                  "EXCHANGE ACT" shall mean the Securities Exchange Act of
1934, as amended, and the rules and regulations of the Commission thereunder,
all as the same shall be in effect from time to time.

                  "EXPENSES" shall mean all expenses incurred by the Company
in complying with Section 1 hereof, including without limitation, all
registration, qualification and filing fees, exchange listing fees, printing
expenses, escrow fees, fees and disbursements of counsel for the Company,
blue sky fees and expenses, and the expense of any special audits incident to
or required by any such registration; and all underwriting discounts, selling
commissions and stock transfer taxes applicable to the securities registered
by the Optionee, but excluding the costs and fees of any accountants,
attorneys or other experts retained personally by the Optionee.

                  "REGISTRABLE SECURITIES" means any Common Stock of the
Company issued or issuable upon exercise of options granted pursuant to the
Senior Executive Long Term Compensation Plan, or restricted stock awarded
pursuant to such Plan.

                  The terms "REGISTER," "REGISTERED" and "REGISTRATION" refer
to a registration effected by preparing and filing a registration statement
in compliance with the Securities Act.

                  "SECURITIES ACT" shall mean the Securities Act of 1933, as
amended.

                                       -10-<PAGE>

                                                                   Exhibit 10.5

                        FORM OF INDEMNIFICATION AGREEMENT

         This Agreement is entered into this 17th day of May, 2000, by and
between Photogen Technologies, Inc. a Nevada corporation (the "Company"), and
______________________ ("Indemnitee").

         WHEREAS, highly competent persons are becoming more reluctant to serve
corporations as directors or in other capacities unless they are provided with
adequate protection through insurance or adequate indemnification against
inordinate risks of claims and actions against them arising out of their service
to and activities on behalf of the corporation; and

         WHEREAS, the Board of Directors believes the Company should act to
assure such persons that there will be increased certainty of such protection in
the future; and believes that such protection is consistent with Article VI of
the Bylaws and, in particular, Section 6 thereof, and Section 78.752 of the
Nevada General Corporation Law; and

         WHEREAS, it is reasonable, prudent and necessary for the Company to
obligate itself by contract to indemnify such persons to the fullest extent
permitted by applicable law so that they will serve or continue to serve the
Company free from undue concern for litigation claims for damages arising out of
or related to the performance of such service; and

         WHEREAS, Indemnitee is willing to serve or continue to serve as a
director of the Company and its subsidiaries with the understanding that the
Indemnitee shall be indemnified to the fullest extent permitted by applicable
law.

         NOW, THEREFORE, in consideration of the premises and the covenants
contained herein, the Company and Indemnitee agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

         For the purposes of this Agreement, the following terms shall have the
meaning given here:

         Section 1.1 "Board" means the Board of Directors of the Company.

         Section 1.2 "Corporate Status" describes the status of a person who is
or was a director, officer, employee, agent or fiduciary of the Company or of
any other corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise which such person is or was serving at the express written
request of the Company.

<PAGE>

         Section 1.3 "Disinterested Director" means a director of the Company
who is not and was not a party to the Proceeding in respect of which
indemnification is sought by Indemnitee.

         Section 1.4 "Enterprise" means the Company and any other corporation,
partnership, joint venture, trust, employee benefit plan or other enterprise of
which Indemnitee is or was serving at the express written request of the Company
as a director, officer, employee, agent or fiduciary.

         Section 1.5 "Expenses" includes all reasonable attorneys' fees,
retainers, court costs, transcript costs, fees of experts, witness fees, travel
expenses, duplicating costs, printing and binding costs, telephone charges,
postage, delivery service fees, and all other disbursements or expenses of the
types customarily incurred in connection with prosecuting or defending (or
preparing to prosecute or defend) a Proceeding, investigating the matters at
issue in a Proceeding, or being or preparing to be a witness in a Proceeding.

         Section 1.6 "Good Faith" means Indemnitee having acted in good faith
and in a manner Indemnitee reasonably believed to be in or not opposed to the
best interests of the Enterprise, and, with respect to any criminal Proceeding,
having had no reasonable cause to believe Indemnitee's conduct was unlawful.

         Section 1.7 "Proceeding" includes any action, suit, arbitration,
alternate dispute resolution mechanism, investigation, administrative hearing or
any other actual, threatened or completed proceeding whether civil, criminal,
administrative or investigative, other than one initiated by Indemnitee. For
purposes of the foregoing sentence, a "Proceeding" shall not be deemed to have
been initiated by Indemnitee where Indemnitee seeks pursuant to Article VIII of
this Agreement to enforce Indemnitee's rights under this Agreement.

                                   ARTICLE II
                                TERM OF AGREEMENT

         This Agreement shall continue until and terminate upon the later of:
(i) six (6) years after the date that Indemnitee's Corporate Status shall have
ceased; or (ii) the final termination of all pending Proceedings in respect of
which Indemnitee is granted rights of indemnification or advancement of expenses
hereunder and of any proceeding commenced by Indemnitee regarding the
interpretation or enforcement of this Agreement.

                                   ARTICLE III
                  SERVICES BY INDEMNITEE, NOTICE OF PROCEEDINGS

         Section 3.1 SERVICES. Indemnitee agrees to serve as a Director of the
Company, and from time to time, in such capacity as a Director and/or Officer of
any other corporation, partnership, joint venture, trust, employee benefit plan
or other enterprise as directed by the

                                      - 2 -
<PAGE>

Board of Directors and agreed to by Indemnitee. Such service is subject to the
Bylaws and any written agreement between the Indemnitee and the Company or such
other entity.

         Section 3.2 NOTICE OF PROCEEDING. Indemnitee agrees promptly to notify
the Company in writing upon being served with any summons, citation, subpoena,
complaint, indictment, information or other document relating to any Proceeding
or matter which may be subject to indemnification or advancement of Expenses
covered hereunder.

         Section 3.3 COOPERATION. Indemnitee agrees to cooperate (and to cause
his representatives to cooperate) with the Company and its counsel in connection
with any Proceeding or other matter which may be subject to indemnification or
advancement of Expenses covered hereunder.

                                   ARTICLE IV
                                 INDEMNIFICATION

         Section 4.1 IN GENERAL. The Company shall indemnify and advance
Expenses to Indemnitee in connection with any Proceeding as provided in this
Agreement and to the fullest extent permitted by applicable law in effect on the
date hereof and to such greater extent as applicable law may thereafter from
time to time permit.

         Section 4.2 THIRD PARTY ACTIONS. If Indemnitee was or is a party or is
threatened to be made a party to any Proceeding (other than an action by or in
the right of the Company) by reason of his Corporate Status, or by reason of any
act or omission in any such capacity, the Company shall indemnify him against
any and all Expenses and liabilities of any type whatsoever (including, but not
limited to, judgments, fines, ERISA excise taxes or penalties, and amounts paid
in settlement) actually and reasonably incurred by or for him in connection with
the investigation, defense, settlement or appeal of such Proceeding or any
claim, issue or matter therein if he acted in Good Faith.

         Section 4.3 DERIVATIVE ACTIONS. If Indemnitee was or is a party or is
threatened to be made a party to any Proceeding by or in the right of the
Company to procure a judgment in its favor by reason of his Corporate Status, or
by reason of any act or omission in any such capacity, the Company shall
indemnify him against any and all Expenses actually and reasonably incurred by
or for him in connection with the investigation, defense, settlement, or appeal
of such Proceeding if he acted in Good Faith; except that no indemnification
under this Section 4.3 shall be made in respect of any claim, issue or matter as
to which such person shall have been adjudged by a court of competent
jurisdiction, after exhaustion of all appeals therefrom, to be liable to the
Enterprise or for amounts paid in settlement to the Enterprise, unless and only
to the extent that the court in which the Proceeding was brought or other court
of competent jurisdiction determines upon application that in view of all the
circumstances of the case, the Indemnitee is fairly and reasonably entitled to
indemnity for such expenses as the court deems proper.

                                     - 3 -
<PAGE>

         Section 4.4 INDEMNIFICATION OF A PARTY WHO IS WHOLLY OR PARTLY
SUCCESSFUL. Notwithstanding any other provision of this Agreement, to the extent
that Indemnitee is, by reason of Indemnitee's Corporate Status, a party to and
is successful, on the merits or otherwise, in any Proceeding, Indemnitee shall
be indemnified to the maximum extent permitted by law, against any and all
Expenses and liabilities of any type whatsoever (including, but not limited to,
judgments, fines, ERISA excise taxes or penalties, and amounts paid in
settlement) actually and reasonably incurred by or for him in connection
therewith. If Indemnitee is not wholly successful in such Proceeding but is
successful, on the merits or otherwise, as to one or more but less than all
claims, issues or matters in such Proceeding, the Company shall indemnify
Indemnitee to the maximum extent permitted by law, against all Expenses and
liabilities of any type whatsoever (including, but not limited to, judgments,
penalties, and amounts paid in settlement) actually and reasonably incurred by
or for him in connection with each successfully resolved claim, issue or matter.
For purposes of this Section 4.4 and without limitation, the termination of any
claim, issue or matter in such a Proceeding by dismissal, with or without
prejudice, shall be deemed to be a successful result as to such claim, issue or
matter, so long as there has been no finding (either adjudicated or pursuant to
Article VI) that Indemnitee did not act in Good Faith.

         Section 4.5 INDEMNIFICATION FOR EXPENSES OF A WITNESS. Notwithstanding
any other provision of this Agreement, to the extent that Indemnitee is, by
reason of Indemnitee's Corporate Status, a witness in any Proceeding, Indemnitee
shall be indemnified against all Expenses actually and reasonably incurred by or
for him in connection therewith.

                                    ARTICLE V
                             ADVANCEMENT OF EXPENSES

         Notwithstanding any provision to the contrary in Article VI, the
Company shall advance all reasonable Expenses which, by reason of Indemnitee's
Corporate Status, were incurred by or for him in connection with any proceeding
in advance of the final disposition thereof, within ten (10) business days after
the receipt by the Company of a statement or statements from Indemnitee
requesting such advance or advances. Such statement or statements shall
reasonably evidence the Expenses incurred by or for Indemnitee. Indemnitee
hereby agrees to repay any Expenses advanced hereunder if it shall ultimately be
determined that Indemnitee is not entitled to be indemnified against such
Expenses. Any advances and the undertaking to repay pursuant to this Article V
shall be unsecured and interest free.

                                   ARTICLE VI
                    DETERMINATION OF RIGHT TO INDEMNIFICATION

         Section 6.1 NO DETERMINATION NECESSARY WHEN INDEMNITEE WAS SUCCESSFUL.
To the extent Indemnitee has been successful on the merits or otherwise in
defense of any Proceeding referred to in Sections 4.2 or 4.3 of this Agreement
or in the defense of any claim, issue or matter

                                     - 4 -
<PAGE>

described therein, the Company shall indemnify Indemnitee against Expenses
actually and reasonably incurred by or for him in connection with the
investigation, defense, or appeal of such Proceeding.

         Section 6.2 FORUM FOR DETERMINATION. Indemnitee shall be entitled to
select the forum in which the validity of the Company's claim under Section 6.2
hereof that Indemnitee is not entitled to indemnification will be heard from
among the following:

                  (a)      A quorum of the Board consisting of Disinterested
                           Directors;

                  (b)      The shareholders of the Company;

                  (c)      Legal counsel selected by Indemnitee, and reasonably
                           approved by the Board, which counsel shall make such
                           determination in a written opinion; or

                  (d)      A panel of three arbitrators, one of whom is selected
                           by the Company, another of whom is selected by
                           Indemnitee and the last of whom is selected by the
                           first two arbitrators so selected.

As soon as practicable, and in no event later than thirty (30) days after
written notice of Indemnitee's choice of forum pursuant to this Section 6.2, the
Company shall, at its own expense, submit to the selected forum in such manner
as Indemnitee or Indemnitee's counsel may reasonably request, its claim that
Indemnitee is not entitled to indemnification, and the Company shall act in the
utmost good faith to assure Indemnitee a complete opportunity to defend against
such claim.

         Section 6.3 RIGHT TO APPEAL. Notwithstanding a determination by any
forum listed in Section 6.2 hereof that Indemnitee is not entitled to
indemnification with respect to a specific Proceeding, Indemnitee shall have the
right to apply to the court in which that Proceeding is or was pending, or any
other court of competent jurisdictions, for the purpose of enforcing
Indemnitee's right to indemnification pursuant to this Agreement.

         Section 6.4 EXPENSES UNDER THIS AGREEMENT. Notwithstanding any other
provision in this Agreement to the contrary, the Company shall indemnify
Indemnitee against all expenses incurred by Indemnitee in connection with any
hearing or proceeding under this Article VI involving Indemnitee and against all
Expenses incurred by Indemnitee in connection with any other action between the
Company and Indemnitee involving the interpretation or enforcement of the rights
of Indemnitee under this Agreement, but only to the extent Indemnitee prevails
in any such action.

         Section 6.5 THIRD PARTY DEFENDANT. Company hereby agrees that in the
event a claim is brought against Indemnitee in any Proceeding to which
Indemnitee would be entitled to

                                     - 5 -
<PAGE>

Indemnification under Articles IV and VI hereunder, and Indemnitee desires to
name Company as a third party defendant in any such Proceeding, Company will not
contest service of process or personal jurisdiction.

                                   ARTICLE VII
                 PRESUMPTIONS AND EFFECT OF CERTAIN PROCEEDINGS

         Section 7.1 BURDEN OF PROOF. In making a determination with respect to
entitlement to indemnification hereunder, the person, persons or entity making
such determination shall presume that Indemnitee is entitled to indemnification
under this Agreement. The Company shall have the burden of proof to overcome
that presumption by a preponderance of the evidence.

         Section 7.2 EFFECT OF OTHER PROCEEDINGS. The termination of any
Proceeding or of any claim, issue or matter therein, by judgment, order,
settlement or conviction, or upon a plea of nolo contendere or its equivalent,
shall not of itself adversely affect the right of Indemnitee to indemnification
or create a presumption that Indemnitee did not act in Good Faith.

         Section 7.3 RELIANCE AS SAFE HARBOR. For purposes of any determination
of Good Faith, Indemnitee shall be deemed to have acted in Good Faith if
Indemnitee's action is based on the records or books of account of the Company,
including financial statements, or on information supplied to Indemnitee by the
officers of the Company in the course of their duties, or on the advice of legal
counsel for the Company or on information or records given or reports made to
the Company by an independent certified public accountant or by an appraiser or
other expert selected with reasonable care by the Company. The provisions of
this Section 7.3 shall not be deemed to be exclusive or to limit in any way the
other circumstances in which the Indemnitee may be deemed to have met the
applicable standard of conduct set forth in this Agreement.

                                  ARTICLE VIII
                     NON-EXCLUSIVITY, INSURANCE, SUBROGATION

         Section 8.1 NON-EXCLUSIVITY. The rights of indemnification and to
receive advancement of Expenses as provided by this Agreement shall not be
deemed exclusive of any other rights to which Indemnitee may at any time be
entitled under applicable law, the Articles of Incorporation, the By-Laws, any
agreement, a vote of shareholders or a resolution of directors, directors and
officers insurance, or otherwise. No amendment, alteration, rescission or
replacement of this Agreement or any provision hereof shall be effective as to
Indemnitee with respect to any action taken or omitted by such Indemnitee in
Indemnitee's Corporate Status prior to such amendment, alteration, rescission or
replacement.

         Section 8.2 INSURANCE. The Company may maintain an insurance policy or
policies against liability arising out of this Agreement or otherwise.

                                     - 6 -
<PAGE>

         Section 8.3 SUBROGATION. In the event of any payment under this
Agreement, the Company shall be subrogated to the extent of such payment to all
of the rights of recovery of Indemnitee, who shall execute all papers required
and take all action necessary to secure such rights, including execution of such
documents as are necessary to enable the Company to bring suit to enforce such
rights.

         Section 8.4 NO DUPLICATIVE PAYMENT. Company shall not be liable under
this Agreement to make any payment of amounts otherwise indemnifiable hereunder
if and to the extent that Indemnitee has otherwise actually received such
payment under any insurance policy, contract, agreement or otherwise.

                                   ARTICLE IX
                               GENERAL PROVISIONS

         Section 9.1 SUCCESSORS AND ASSIGNS. This Agreement shall be binding
upon the Company and its successors and assigns and shall inure to the benefit
of Indemnitee and Indemnitee's heirs, executors and administrators.

         Section 9.2 SEVERABILITY. If any provision or provisions of this
Agreement shall be held to be invalid, illegal or unenforceable for any reason
whatsoever, the validity, legality and enforceability of the remaining
provisions of this Agreement (including without limitation, each portion of any
Section of this Agreement containing any such provision held to be invalid,
illegal or unenforceable, that is not itself invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby; and, to the fullest extent
possible, the provisions of this Agreement (including, without limitation, each
portion of any Section of this Agreement containing any such provision held to
be invalid, illegal or unenforceable, that is not itself invalid, illegal or
unenforceable) shall be construed so as to give effect as much as possible to
the intent manifested by the provision held invalid, illegal or unenforceable.

         Section 9.3 COUNTERPARTS; HEADINGS. This Agreement may be executed in
one or more counterparts, each of which shall for all purposes be deemed to be
an original but all of which together shall constitute one and the same
Agreement. Only one such counterpart signed by the party against whom
enforceability is sought needs to be produced to evidence the existence of this
Agreement. The headings of the paragraphs of this Agreement are inserted for
convenience only and shall not be deemed to constitute part of this Agreement or
to affect the construction thereof.

         Section 9.4 MODIFICATION AND WAIVER. No supplement, modification or
amendment of this Agreement shall be binding unless executed in writing by both
of the parties hereto. No waiver of any of the provisions of this Agreement
shall be deemed or shall constitute a waiver of any other provisions hereof
(whether or not similar) nor shall such waiver constitute a continuing waiver.

                                     - 7 -
<PAGE>

         Section 9.5 NOTICES. All notices, requests, demands and other
communications hereunder shall be in writing and shall be deemed to have been
duly given if (i) delivered by hand and receipted for by the party to whom said
notice or other communication shall have been directed, (ii) mailed by certified
or registered mail with postage prepaid, on the third business day after the
date of which it is so mailed, or (iii) mailed by overnight courier with postage
prepaid, on the first day after the date of which it is so mailed:

         If to Indemnitee:          as shown with Indemnitee's signature below

         If to Company:             Photogen Technologies, Inc.
                                    7327 Oak Ridge Highway
                                    Knoxville, TN 37931
                                    Attn: President

or to such other address as may have been furnished to Indemnitee by the Company
or to the Company by Indemnitee, as the case may be.

         Section 9.6 GOVERNING LAW. The parties agree that this Agreement shall
be governed by, and construed and enforced in accordance with, the laws of the
State of Nevada without application of the conflict of laws principles thereof.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement on
the day and year first above written.

                             COMPANY:

                                      PHOTOGEN TECHNOLOGIES, INC.

                                      By:
                                         --------------------------
                                               -------------------, President

                             INDEMNITEE:

                                         ---------------------------
                                               --------------------[name]

                             Notice Address:

                                      ------------------------
                                      ------------------------
                                      ------------------------

                                      - 8 -

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00010-of-00352.parquet"}]]