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                                                                       EXHIBIT 1




                                5,000,000 Shares

                       NANOPHASE TECHNOLOGIES CORPORATION

                                  Common Stock

                             UNDERWRITING AGREEMENT



                                                             __________, 1997


DONALDSON, LUFKIN & JENRETTE
     SECURITIES CORPORATION
FURMAN SELZ LLC
CIBC OPPENHEIMER CORP.
     As representatives of the
     several Underwriters
     named in Schedule I hereto
     c/o Donaldson, Lufkin & Jenrette
       Securities Corporation
       277 Park Avenue
       New York, New York 10172

Dear Sirs:

     Nanophase Technologies Corporation, a Delaware corporation (the
"COMPANY"), proposes to issue and sell 5,000,000 shares of its Common Stock,
$.01 par value (the "FIRM SHARES"), to the several underwriters named in
Schedule I hereto (the "UNDERWRITERS").   The Company also proposes to issue
and sell to the several Underwriters not more than an additional 750,000 shares
of its Common Stock, $.01 par value (the "ADDITIONAL SHARES"), if requested by
the Underwriters as provided in Section 2 hereof.   The Firm Shares and the
Additional Shares are hereinafter referred to collectively as the "SHARES". The







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shares of common stock of the Company to be outstanding after giving effect to
the sales contemplated hereby are hereinafter referred to as the "COMMON
STOCK".

     SECTION 1.  Registration Statement and Prospectus.  The Company has
prepared and filed with the Securities and Exchange Commission (the
"COMMISSION")  in accordance with the provisions of the Securities Act of 1933,
as amended, and the rules and regulations of the Commission thereunder
(collectively, the "ACT"), a registration statement on Form S-1 (File No.
333-36937), including a form of prospectus subject to completion, relating to
the Shares.  The registration statement, as amended at the time it became
effective, including the information (if any) deemed to be part of the
registration statement at the time of effectiveness pursuant to Rule 430A under
the Act, is hereinafter referred to as the "REGISTRATION STATEMENT"; and the
prospectus in the form first used to confirm sales of Shares is hereinafter
referred to as the "PROSPECTUS".  If the Company has filed or is required
pursuant to the terms hereof to file a registration statement pursuant to Rule
462(b) under the Act registering additional shares of Common Stock (a "RULE
462(b) REGISTRATION STATEMENT"), then, unless otherwise specified, any
reference herein to the term "Registration Statement" shall be deemed to
include such Rule 462(b) Registration Statement.

     SECTION 2.  Agreements to Sell and Purchase and Lock-Up Agreements.  On
the basis of the representations and warranties contained in this Agreement,
and subject to its terms and conditions, the Company agrees to issue and sell
to each Underwriter, and each Underwriter agrees, severally and not jointly, to
purchase from the Company at a price per Share of $______ (the "PURCHASE
PRICE") the number of Firm Shares set forth opposite the name of such
Underwriter in Schedule I hereto.

     On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to issue
and sell to the Underwriters the Additional Shares and the Underwriters shall
have the right to purchase, severally and not jointly, up to 750,000 Additional
Shares from the Company at the Purchase Price.   Additional Shares may be
purchased solely for the purpose of covering over-allotments made in connection
with the offering of the Firm Shares.   The Underwriters may exercise their
right to purchase Additional Shares in whole or in part from time to time by
giving written notice thereof to the Company within 30 days after the date of
this Agreement.  You shall give any such notice on behalf of the Underwriters
and such notice shall specify the aggregate number of Additional Shares to be
purchased pursuant to such exercise and the date for payment and delivery
thereof, which date shall be a business day (i) no earlier than two business
days after such notice has been given (and, in any event, no earlier than the
Closing Date (as hereinafter defined)) and (ii) no later than ten business days
after such




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notice has been given.   If any Additional Shares are to be purchased, each
Underwriter, severally and not jointly, agrees to purchase from the Company the
number of Additional Shares (subject to such adjustments to eliminate
fractional shares as you may determine) which bears the same proportion to the
total number of Additional Shares to be purchased from the Company as the
number of Firm Shares set forth opposite the name of such Underwriter in
Schedule I bears to the total number of Firm Shares.

     The Company hereby agrees not to (i) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, or otherwise transfer
or dispose of, directly or indirectly, any shares of Common Stock or any
securities convertible into or exercisable or exchangeable for Common Stock or
(ii) enter into any swap or other arrangement that transfers all or a portion
of the economic consequences associated with the ownership of any Common Stock
(regardless of whether any of the transactions described in clause (i) or (ii)
is to be settled by the delivery of Common Stock, or such other securities, in
cash or otherwise) for a period of 180 days after the date of the Prospectus
without the prior written consent of Donaldson, Lufkin & Jenrette Securities
Corporation, except (a) pursuant to this Agreement, (b) pursuant to the
preferred stock conversion to be completed upon the Closing Date, (c) for the 
Company's grant of stock options or issuance of Common Stock pursuant to the
exercise of stock options outstanding on the date of the Prospectus, pursuant
to the Company's 1992 Amended and Restated Stock Option Plan, as amended and as
described in the Prospectus, or (d) for the Company's issuance of Common Stock
pursuant to the exercise of warrants outstanding as of the date of the
Prospectus. Notwithstanding the foregoing, during such period (i) the Company
may grant stock options pursuant to the Company's existing stock option plan
and (ii) the Company may issue shares of Common Stock upon the exercise of an
option or warrant or the conversion of a security outstanding on the date
hereof.  The Company also agrees not to file any registration statement with
respect to any shares of Common Stock or any securities convertible into or
exercisable or exchangeable for Common Stock for a period of 180 days after the
date of the Prospectus without the prior written consent of Donaldson, Lufkin &
Jenrette Securities Corporation.  The Company shall, prior to or concurrently
with the execution of this Agreement, deliver an agreement executed by each of
the directors and officers of the Company substantially in the form of Annex I
attached hereto.

     SECTION 3.  Terms of Public Offering.  The Company is advised by you that
the Underwriters propose (i) to make a public offering of their respective
portions of the Shares as soon after the execution and delivery of this
Agreement as in your judgment is advisable and (ii) initially to offer the
Shares upon the terms set forth in the Prospectus.




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     SECTION 4.  Delivery and Payment.  Delivery to the Underwriters of and
payment for the Firm Shares shall be made at 9:00 A.M., New York City time, on
__________ , 1997 (the "CLOSING DATE") at such place as you shall designate.
The Closing Date and the location of delivery of and payment for the Firm
Shares may be varied by agreement between you and the Company.

     Delivery to the Underwriters of and payment for any Additional Shares to
be purchased by the Underwriters shall be made at such place as you shall
designate at 9:00 A.M., New York City time, on the date specified in the
applicable exercise notice given by you pursuant to Section 2 (an "OPTION
CLOSING DATE").   Any such Option Closing Date and the location of delivery of
and payment for such Additional Shares may be varied by agreement between you
and the Company.

     Certificates for the Shares shall be registered in such names and issued
in such denominations as you shall request in writing not later than two full
business days prior to the Closing Date or an Option Closing Date, as the case
may be.  Such certificates shall be made available to you for inspection not
later than 9:30 A.M., New York City time, on the business day prior to the
Closing Date or the applicable Option Closing Date, as the case may be.
Certificates in definitive form evidencing the Shares shall be delivered to you
on the Closing Date or the applicable Option Closing Date, as the case may be,
with any transfer taxes thereon duly paid by the Company, for the respective
accounts of the several Underwriters, against payment to the Company of the
Purchase Price therefor by wire transfer of Federal or other funds immediately
available in New York City.

     SECTION 5.  Agreements of the Company.  The Company agrees with you:

     (a) To advise you promptly and, if requested by you, to confirm such
advice in writing, (i) of any request by the Commission for amendments to the
Registration Statement or amendments or supplements to the Prospectus or for
additional information, (ii) of the issuance by the Commission of any stop
order suspending the effectiveness of the Registration Statement or of the
suspension of qualification of the Shares for offering or sale in any
jurisdiction, or the initiation of any proceeding for such purposes, (iii) when
any amendment to the Registration Statement becomes effective, (iv) if the
Company is required to file a Rule 462(b) Registration Statement after the
effectiveness of this Agreement, when the Rule 462(b) Registration Statement
has become effective and (v) of the happening of any event during the period
referred to in Section 5(d) below which makes any statement of a material fact
made in the Registration Statement or the Prospectus untrue or which requires
any additions to or changes in the Registration Statement or the Prospectus in
order to make the statements therein not misleading.  If at any time the
Commission shall issue any stop order



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suspending the effectiveness of the Registration Statement, the Company will
use its best efforts to obtain the withdrawal or lifting of such order at the
earliest possible time.

     (b) To furnish to you four (4) signed copies of the Registration Statement
as first filed with the Commission and of each amendment to it, including all
exhibits, and to furnish to you and each Underwriter designated by you such
number of conformed copies of the Registration Statement as so filed and of
each amendment to it, without exhibits, as you may reasonably request.

     (c) To prepare the Prospectus, the form and substance of which shall be
satisfactory to you, and to file the Prospectus in such form with the
Commission within the applicable period specified in Rule 424(b) under the Act;
during the period specified in Section 5(d) below, not to file any further
amendment to the Registration Statement and not to make any amendment or
supplement to the Prospectus of which you shall not previously have been
advised or to which you shall reasonably object after being so advised; and,
during such period, to prepare and file with the Commission, promptly upon your
reasonable request, any amendment to the Registration Statement or amendment or
supplement to the Prospectus which may be necessary or advisable in connection
with the distribution of the Shares by you, and to use its best efforts to
cause any such amendment to the Registration Statement to become promptly
effective.

     (d) Prior to 10:00 A.M., New York City time, on the first business day
after the date of this Agreement and from time to time thereafter for such
period as in the opinion of counsel for the Underwriters a prospectus is
required by law to be delivered in connection with sales by an Underwriter or a
dealer, to furnish in New York City to each Underwriter and any dealer as many
copies of the Prospectus (and of any amendment or supplement to the Prospectus)
as such Underwriter or dealer may reasonably request.

     (e) If during the period specified in Section 5(d), any event shall occur
or condition shall exist as a result of which, in the opinion of counsel for
the Underwriters, it becomes necessary to amend or supplement the Prospectus in
order to make the statements therein, in the light of the circumstances when
the Prospectus is delivered to a purchaser, not misleading, or if, in the
opinion of counsel for the Underwriters,  it is necessary to amend or
supplement the Prospectus to comply with applicable law, forthwith to prepare
and file with the Commission an appropriate amendment or supplement to the
Prospectus so that the statements in the Prospectus, as so amended or
supplemented, will not, in the light of the circumstances when it is so
delivered, be misleading, or so that the Prospectus will comply with applicable
law, and to furnish to each Underwriter



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and to any dealer as many copies thereof as such Underwriter or dealer may
reasonably request.

     (f) Prior to any public offering of the Shares, to cooperate with you and
counsel for the Underwriters in connection with the registration or
qualification of the Shares for offer and sale by the several Underwriters and
by dealers under the state securities or Blue Sky laws of such jurisdictions as
you may request, to continue such registration or qualification in effect so
long as required for distribution of the Shares and to file such consents to
service of process or other documents as may be necessary in order to effect
such registration or qualification; provided, however, that the Company shall
not be required in connection therewith to qualify as a foreign corporation in
any jurisdiction in which it is not now so qualified or to take any action that
would subject it to general consent to service of process or taxation other
than as to matters and transactions relating to the Prospectus, the
Registration Statement, any preliminary prospectus or the offering or sale of
the Shares, in any jurisdiction in which it is not now so subject.

     (g) To mail and make generally available to its stockholders as soon as
practicable an earnings statement covering the twelve-month period ending
December 31, 1998 that shall satisfy the provisions of Section 11(a) of the Act,
and to advise you in writing when such statement has been so made available.

     (h) During the period of three years after the date of this Agreement, to
furnish to you as soon as available copies of all reports or other
communications furnished to the record holders of Common Stock or furnished to
or filed with the Commission or any national securities exchange or market on
which any class of securities of the Company is listed and such other publicly
available information concerning the Company as you may reasonably request.

     (i) Whether or not the transactions contemplated in this Agreement are
consummated or this Agreement is terminated, to pay or cause to be paid all
expenses incident to the performance of its obligations under this Agreement,
including:  (i) the fees, disbursements and expenses of the Company's counsel
and the Company's accountants in connection with the registration and delivery
of the Shares under the Act and all other fees and expenses in connection with
the preparation, printing, filing and distribution of the Registration
Statement (including financial statements and exhibits), any preliminary
prospectus, the Prospectus and all amendments and supplements to any of the
foregoing, including the mailing and delivering of copies thereof to the
Underwriters and dealers in the quantities specified herein, (ii) all costs and
expenses related to the transfer and delivery of the Shares to the
Underwriters, including any transfer or



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other taxes payable thereon, (iii) all costs of printing or producing this
Agreement and any other agreements or documents in connection with the
offering, purchase, sale or delivery of the Shares, (iv) all expenses in
connection with the registration or qualification of the Shares for offer and
sale under the securities or Blue Sky laws of the several states and all costs
of printing or producing any Preliminary and Supplemental Blue Sky Memoranda in
connection therewith (including the filing fees and fees and disbursements of
counsel for the Underwriters in connection with such registration or
qualification and memoranda relating thereto), (v) the filing fees and
disbursements of counsel for the Underwriters in connection with the review and
clearance of the offering of the Shares by the National Association of
Securities Dealers, Inc., (vi) all fees and expenses in connection with the
preparation and filing of the registration statement on Form 8-A relating to
the Common Stock and all costs and expenses incident to the listing of the
Shares on the Nasdaq National Market, (vii) the cost of printing certificates
representing the Shares, (viii) the costs and charges of any transfer agent,
registrar and/or depositary, and (ix) all other costs and expenses incident to
the performance of the obligations of the Company hereunder for which provision
is not otherwise made in this Section.  It is understood, however, that, except
as otherwise provided in this Agreement, the Underwriters will pay all of their
costs and expenses, including fees and disbursements of their counsel, stock
transfer taxes payable on the resale of any of the Shares by them and any
advertising expenses connected with any offers they make.

     (j) To use its best efforts to list for quotation the Shares on the Nasdaq
National Market and to maintain the listing of the Shares on the Nasdaq
National Market or the New York Stock Exchange, with your approval, for a
period of three years after the date of this Agreement.

     (k) To use its best efforts to do and perform all things required or
necessary to be done and performed under this Agreement by the Company prior to
the Closing Date or any Option Closing Date, as the case may be, and to satisfy
all conditions precedent to the delivery of the Shares.

     (l) If the Registration Statement at the time of the effectiveness of this
Agreement does not cover all of the Shares, to file a Rule 462(b) Registration
Statement with the Commission registering the Shares not so covered in
compliance with Rule 462(b) by 10:00 P.M., New York City time, on the date of
this Agreement and to pay to the Commission the filing fee for such Rule 462(b)
Registration Statement at the time of the filing thereof or to give irrevocable
instructions for the payment of such fee pursuant to Rule 111(b) under the Act.



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     SECTION 6.  Representations and Warranties of the Company.  The Company
represents and warrants to each Underwriter that:

     (a) The Registration Statement has become effective (other than any Rule
462(b) Registration Statement to be filed by the Company after the
effectiveness of this Agreement); any Rule 462(b) Registration Statement filed
after the effectiveness of this Agreement will become effective no later than
10:00 P.M., New York City time, on the date of this Agreement; and no stop
order suspending the effectiveness of the Registration Statement is in effect,
and no proceedings for such purpose are pending before or threatened by the
Commission.

     (b) (i) The Registration Statement (other than any Rule 462(b)
Registration Statement to be filed by the Company after the effectiveness of
this Agreement), when it became effective, did not contain and, as amended, if
applicable, will not contain any untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading, (ii) the Registration Statement (other than
any Rule 462(b) Registration Statement to be filed by the Company after the
effectiveness of this Agreement) and the Prospectus comply and, as amended or
supplemented, if applicable, will comply in all material respects with the Act,
(iii) if the Company is required to file a Rule 462(b) Registration Statement
after the effectiveness of this Agreement, such Rule 462(b) Registration
Statement and any amendments thereto, when they become effective (A) will not
contain any untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading and (B) will comply in all material respects with the Act and
(iv) the Prospectus does not contain and, as amended or supplemented, if
applicable, will not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements therein, in the light of
the circumstances under which they were made, not misleading, except that the
representations and warranties set forth in this paragraph do not apply to
statements or omissions in the Registration Statement or the Prospectus based
upon information relating to any Underwriter furnished to the Company in
writing by such Underwriter through you expressly for use therein.

     (c) Each preliminary prospectus filed as part of the registration
statement as originally filed or as part of any amendment thereto, or filed
pursuant to Rule 424 under the Act, complied when so filed in all material
respects with the Act, and did not contain an untrue statement of a material
fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading, except that the representations and
warranties set forth in this paragraph do not apply to statements or omissions
in any preliminary prospectus



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based upon information relating to any Underwriter furnished to the Company in
writing by such Underwriter through you expressly for use therein.

     (d) The Company has been duly incorporated, is validly existing as a
corporation in good standing under the laws of its jurisdiction of
incorporation and has the corporate power and authority to carry on its
business as described in the Prospectus and to own, lease and operate its
properties, and is duly qualified and is in good standing as a foreign
corporation authorized to do business in each jurisdiction in which the nature
of its business or its ownership or leasing of property requires such
qualification, except where the failure to be so qualified would not have a
material adverse effect on the business, prospects, financial condition or
results of operations of the Company.

     (e) There are no outstanding subscriptions, rights, warrants, options,
calls, convertible securities, commitments of sale or liens granted or issued
by the Company relating to or entitling any person to purchase or otherwise to
acquire any shares of the capital stock of the Company, except as otherwise
disclosed in the Prospectus.

     (f) All the outstanding shares of capital stock of the Company have been
duly authorized and validly issued and are fully paid, non-assessable and upon
the occurrence of the Closing will not be subject to any preemptive or similar 
rights; and the Shares have been duly authorized and, when issued and delivered
to the Underwriters against payment therefor as provided by this Agreement, 
will be validly issued, fully paid and non-assessable, and the issuance of 
such Shares will not be subject to any preemptive or similar rights.

     (g) The Company has no direct or indirect subsidiaries.

     (h) The authorized capital stock of the Company conforms as to legal
matters to the description thereof contained in the Prospectus.

     (i) The Company is not now and will not be in violation of its charter or
by-laws or in default in the performance of any obligation, agreement, covenant
or condition contained in any indenture, loan agreement, mortgage, lease or
other agreement or instrument that is material to the Company to which the
Company is a party or by which the Company or its property is bound.

     (j) The execution, delivery and performance of this Agreement by the
Company, the compliance by the Company with all the provisions hereof and the
consummation of the transactions contemplated hereby will not (i) require any
consent, approval, authorization or other order of, or qualification with,  any
court



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or governmental body or agency (except such as may be required under the
securities or Blue Sky laws of the various states, the Nasdaq National Market,  
the National Association of Securities Dealers, Inc. or Delaware or Illinois
law in connection with the Company's reincorporation in Delaware), (ii)
conflict with or constitute a breach of any of the terms or provisions of, or a
default under, the charter or by-laws of the Company in effect at such time or 
any indenture, loan agreement, mortgage, lease or other agreement or instrument
that is material to the Company to which the Company is a party or by which the
Company or its property is bound, (iii) violate or conflict with any applicable
law or any rule, regulation, judgment, order or decree of any court or any
governmental body or agency having jurisdiction over the Company or its
property or (iv) result in the suspension, termination or revocation of any
Authorization (as defined below) of the Company or any other impairment of the
rights of the holder of any such Authorization.

     (k) There are no legal or governmental proceedings pending or threatened
to which the Company is or could be a party or to which any of its property is
or could be subject that are required to be described in the Registration
Statement or the Prospectus and are not so described; nor are there any
statutes, regulations, contracts or other documents that are required by the
Act to be described in the Registration Statement or the Prospectus or to be
filed as exhibits to the Registration Statement that are not so described or
filed as required.

     (l) The Company has not violated any foreign, federal, state or local law
or regulation relating to the protection of human health and safety, the
environment or hazardous or toxic substances or wastes, pollutants or
contaminants ("ENVIRONMENTAL LAWS") or any provisions of the Employee
Retirement Income Security Act of 1974, as amended, or the rules and
regulations promulgated thereunder, except for such violations which, singly or
in the aggregate, would not have a material adverse effect on the business,
prospects, financial condition or results of operation of the Company.

     (m) The Company has such permits, licenses, consents, exemptions,
franchises, authorizations and other approvals (each, an "AUTHORIZATION") of,
and has made all filings with and notices to, all governmental or regulatory
authorities and self-regulatory organizations and all courts and other
tribunals, including, without limitation, under any applicable Environmental
Laws, as are necessary to own, lease, license and operate its properties and to
conduct its business, except where the failure to have any such Authorization
or to make any such filing or notice would not, singly or in the aggregate,
have a material adverse effect on the business, prospects, financial condition
or results of operations of the Company.  Each such Authorization is valid and
in full force and effect and the Company is in compliance with all the terms
and conditions thereof and with the rules and



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regulations of the authorities and governing bodies having jurisdiction with
respect thereto; and no event has occurred (including, without limitation, the
receipt of any notice from any authority or governing body) which allows or,
after notice or lapse of time or both, would allow, revocation, suspension or
termination of any such Authorization or results or, after notice or lapse of
time or both, would result in any other impairment of the rights of the holder
of any such Authorization; and such Authorizations contain no restrictions that
are burdensome to the Company; except where such failure to be valid and in
full force and effect or to be in compliance, the occurrence of any such event
or the presence of any such restriction would not, singly or in the aggregate,
have a material adverse effect on the business, prospects, financial condition
or results of operations of the Company.

     (n) There are no costs or liabilities associated with Environmental Laws
(including, without limitation, any capital or operating expenditures required
for clean-up, closure of properties or compliance with Environmental Laws or
any Authorization, any related constraints on operating activities and any
potential liabilities to third parties) which would, singly or in the
aggregate, have a material adverse effect on the business, prospects, financial
condition or results of operations of the Company.

     (o) This Agreement has been duly authorized, executed and delivered by the
Company.

     (p) Ernst & Young LLP are independent public accountants with respect to
the Company as required by the Act.

     (q) The financial statements included in the Registration Statement and
the Prospectus (and any amendment or supplement thereto), together with related
schedules and notes, present fairly the financial position, statements of
operations, stockholders' equity and cash flows of the Company on the basis
stated therein at the respective dates or for the respective periods to which
they apply; such financial statements and related schedules and notes have been
prepared in accordance with generally accepted accounting principles
consistently applied throughout the periods involved, except as disclosed
therein; the supporting schedules, if any, included in the Registration
Statement present fairly in accordance with generally accepted accounting
principles the information required to be stated therein; and the other
financial and statistical information and data set forth in the Registration
Statement and the Prospectus (and any amendment or supplement thereto) are, in
all material respects, accurately presented and prepared on a basis consistent
with such financial statements and the books and records of the Company.



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     (r) The Company is not and, after giving effect to the offering and sale
of the Shares and the application of the proceeds thereof as described in the
Prospectus, will not be, an "investment company" as such term is defined in the
Investment Company Act of 1940, as amended.

     (s) Except as otherwise disclosed in the Prospectus, there are no
contracts, agreements or understandings between the Company and any person
granting such person the right to require the Company to file a registration
statement under the Act with respect to any securities of the Company or to
require the Company to include such securities with the Shares registered
pursuant to the Registration Statement.

     (t) Since the respective dates as of which information is given in the
Prospectus, other than as set forth in the Prospectus (exclusive of any
amendments or supplements thereto subsequent to the date of this Agreement),
(i) there has not occurred  any material adverse change or any development
involving a prospective material adverse change in the condition, financial or
otherwise, or the earnings, business, management or operations of the Company,
(ii) there has not been any material adverse change or any development
involving a prospective material adverse change in the capital stock or in the
long-term debt of the Company and (iii) the Company has not incurred any
material liability or obligation, direct or contingent.

     (u) Each certificate signed by any officer of the Company and delivered to
the Underwriters or counsel for the Underwriters shall be deemed to be a
representation and warranty by the Company to the Underwriters as to the
matters covered thereby.

     (v) The Company owns or possesses, or can acquire on reasonable terms, all
patents, patent rights, licenses, inventions, copyrights, know-how (including
trade secrets and other unpatented and/or unpatentable proprietary or
confidential information, systems or procedures), trademarks, service marks and
trade names ("intellectual property") currently employed by it in connection
with the business now operated by it except where the failure to own or possess
or otherwise be able to acquire such intellectual property would not, singly or
in the aggregate, have a material adverse effect on the business, prospects,
financial condition or results of operation of the Company; and the Company has
not received any notice of infringement of or conflict with asserted rights of
others with respect to any of such intellectual property which, singly or in
the aggregate, if the subject of an unfavorable decision, ruling or finding,
would have a material adverse effect on the business, prospects, financial
condition or results of operations of the Company.




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     (w) The Company has good and marketable title in fee simple to all real
property and good and marketable title to all personal property owned by it
which is material to the business of the Company, in each case free and clear
of all liens, encumbrances and defects except such as are described in the
Prospectus or such as do not materially affect the value of such property and
do not interfere with the use made and proposed to be made of such property by
the Company; and any real property and buildings held under lease by the
Company are held by it under valid, subsisting and enforceable leases with such
exceptions as are not material and do not interfere with the use made and
proposed to be made of such property and buildings by the Company, in each case
except as described in the Prospectus.

     SECTION 7.  Indemnification.  (a) The Company agrees to indemnify and hold
harmless each Underwriter, its directors, its officers and each person, if any,
who controls any Underwriter within the meaning of Section 15 of the Act or
Section 20 of the Securities Exchange Act of 1934, as amended (the "EXCHANGE
ACT"), from and against any and all losses, claims, damages, liabilities and
judgments (including, without limitation, any legal or other expenses incurred
in connection with investigating or defending any matter, including any action,
that could give rise to any such losses, claims, damages, liabilities or
judgments) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement (or any amendment
thereto), the Prospectus (or any amendment or supplement thereto) or any
preliminary prospectus, or caused by any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, except insofar as such losses, claims,
damages, liabilities or judgments are caused by any such untrue statement or
omission or alleged untrue statement or omission based upon information
relating to any Underwriter furnished in writing to the Company by such
Underwriter through you expressly for use therein; provided, however, that,
with respect to any untrue statement or alleged untrue statement or omission or
alleged omission made in any preliminary prospectus, the foregoing indemnity
agreement shall not inure to the benefit of any Underwriter from whom the
person asserting any such losses, claims, damages or liabilities purchased the
Shares concerned, or any person controlling such Underwriter, to the extent
that any such loss, claim, damage or liability of such Underwriter results from
the fact that a copy of the Prospectus (or Prospectus as amended or
supplemented) was not sent or given to such person, if required by the
Securities Act so to have been delivered, at or prior to the written
confirmation of the sale of such Shares to such person and the untrue statement
or alleged untrue statement or omission or alleged omission was corrected in
such Prospectus (or Prospectus as amended or supplemented), if the Company had




                                       13


   14




previously furnished copies of such Prospectus (or Prospectus as amended or
supplemented) to such Underwriter.

     (b) Each Underwriter agrees, severally and not jointly, to indemnify and
hold harmless the Company, its directors, its officers who signed the
Registration Statement and each person, if any, who controls the Company within
the meaning of Section 15 of the Act or Section 20 of the Exchange Act, to the
same extent as the foregoing indemnity from the Company to such Underwriter but
only with reference to information relating to such Underwriter furnished in
writing to the Company by such Underwriter through you expressly for use in the
Registration Statement (or any amendment thereto), the Prospectus (or any
amendment or supplement thereto) or any preliminary prospectus.

     (c)   In case any action shall be commenced involving any person in respect
of which indemnity may be sought pursuant to Section 7(a) or 7(b) (the
"indemnified party"), the indemnified party shall promptly notify the person
against whom such indemnity may be sought (the "indemnifying party") in writing
and the indemnifying party shall assume the defense of such action, including
the employment of counsel reasonably satisfactory to the indemnified party and
the payment of all fees and expenses of such counsel, as incurred (except that
in the case of any action in respect of which indemnity may be sought pursuant
to both Sections 7(a) and 7(b), the Underwriter shall not be required to assume
the defense of such action pursuant to this Section 7(c), but may employ
separate counsel and participate in the defense thereof, but the fees and
expenses of such counsel, except as provided below, shall be at the expense of
such Underwriter).   Any indemnified party shall have the right to employ
separate counsel in any such action and participate in the defense thereof, but
the fees and expenses of such counsel shall be at the expense of the indemnified
party unless (i) the employment of such counsel shall have been specifically
authorized in writing by the indemnifying party, (ii) the indemnifying party
shall have failed to assume the defense of such action or employ counsel
reasonably satisfactory to the indemnified party or (iii) the named parties to
any such action (including any impleaded parties) include both the indemnified
party and the indemnifying party, and the indemnified party shall have been
advised by such counsel that there may be one or more legal defenses available
to it which are different from or additional to those available to the
indemnifying party (in which case the indemnifying party shall not have the
right to assume the defense of such action on behalf of the indemnified party).
In any such case, the indemnifying party shall not, in connection with any one
action or separate but substantially similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances, be
liable for the fees and expenses of more than one separate firm of attorneys (in
addition to any local counsel) for all indemnified parties and all such fees and
expenses shall be reimbursed as they are incurred.  Such firm shall




                                       14


   15




be designated in writing by Donaldson, Lufkin & Jenrette Securities
Corporation, in the case of parties indemnified pursuant to Section 7(a), and
by the Company, in the case of parties indemnified pursuant to Section 7(b).
The indemnifying party shall indemnify and hold harmless the indemnified party
from and against any and all losses, claims, damages, liabilities and judgments
by reason of any settlement of any action (i) effected with its written consent
or (ii) effected without its written consent if the settlement is entered into
more than twenty business days after the indemnifying party shall have received
a request from the indemnified party for reimbursement for the fees and
expenses of counsel (in any case where such fees and expenses are at the
expense of the indemnifying party) and, prior to the date of such settlement,
the indemnifying party shall have failed to comply with such reimbursement
request.   No indemnifying party shall, without the prior written consent of
the indemnified party, effect any settlement or compromise of, or consent to
the entry of  judgment with respect to, any pending or threatened action in
respect of which the indemnified party is or could have been a party and
indemnity or contribution may be or could have been sought hereunder by the
indemnified party, unless such settlement, compromise or judgment (i)  includes
an unconditional release of the indemnified party from all liability on claims
that are or could have been the subject matter of such action and (ii) does not
include a statement as to or an admission of fault, culpability or a failure to
act, by or on behalf of the indemnified party.

     (d) To the extent the indemnification provided for in this Section 7 is
unavailable to an indemnified party or insufficient in respect of any losses,
claims, damages, liabilities or judgments referred to therein, then each
indemnifying party, in lieu of indemnifying such indemnified party, shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages, liabilities and judgments (i) in such
proportion as is appropriate to reflect the relative benefits received by the
Company on the one hand and the Underwriters on the other hand from the
offering of the Shares or (ii) if the allocation provided by clause 7(d)(i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 7(d)(i) above
but also the relative fault of the Company on the one hand and the Underwriters
on the other hand in connection with the statements or omissions which resulted
in such losses, claims, damages, liabilities or judgments, as well as any other
relevant equitable considerations.  The relative benefits received by the
Company on the one hand and the Underwriters on the other hand shall be deemed
to be in the same proportion as the total net proceeds from the offering
(before deducting expenses) received by the Company, and the total underwriting
discounts and commissions received by the Underwriters, bear to the total price
to the public of the Shares, in each case as set forth in the table on the
cover page of the Prospectus.  The relative fault of the Company on the one
hand and the Underwriters on the other hand shall be determined by reference
to,



                                       15


   16




among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Company or the Underwriters and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission.

     The Company and the Underwriters agree that it would not be just and
equitable if contribution pursuant to this Section 7(d) were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation which does not take account of
the equitable considerations referred to in the immediately preceding
paragraph.  The amount paid or payable by an indemnified party as a result of
the losses, claims, damages, liabilities or judgments referred to in the
immediately preceding paragraph shall be deemed to include, subject to the
limitations set forth above, any legal or other expenses incurred by such
indemnified party in connection with investigating or defending any matter,
including any action, that could have given rise to such losses, claims,
damages, liabilities or judgments.  Notwithstanding the provisions of this
Section 7, no Underwriter shall be required to contribute any amount in excess
of the amount by which the total price at which the Shares underwritten by it
and distributed to the public were offered to the public exceeds the amount of
any damages which such Underwriter has otherwise been required to pay by reason
of such untrue or alleged untrue statement or omission or alleged omission.  No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation.  The Underwriters' obligations to
contribute pursuant to this Section 7(d) are several in proportion to the
respective number of Shares purchased by each of the Underwriters hereunder and
not joint.

     (e) The remedies provided for in this Section 7 are not exclusive and
shall not limit any rights or remedies which may otherwise be available to any
indemnified party at law or in equity.

     SECTION 8.  Conditions of Underwriters' Obligations.  The several
obligations of the Underwriters to purchase the Firm Shares under this
Agreement are subject to the satisfaction of each of the following conditions:

     (a) All the representations and warranties of the Company contained in
this Agreement shall be true and correct on the Closing Date with the same
force and effect as if made on and as of the Closing Date.

     (b) If the Company is required to file a Rule 462(b) Registration
Statement after the effectiveness of this Agreement, such Rule 462(b)
Registration Statement shall have become effective by 10:00 P.M., New York City
time, on the



                                       16


   17




date of this Agreement; and no stop order suspending the effectiveness of the
Registration Statement shall have been issued and no proceedings for that
purpose shall have been commenced or shall be pending before or contemplated by
the Commission.

     (c) You shall have received on the Closing Date a certificate dated the
Closing Date, signed by Robert W. Cross and Dennis J. Nowak, in their
respective capacities as the President and Chief Executive Officer and Chief
Financial Officer and Vice President of Finance and Administration of the
Company, confirming the matters set forth in Sections 6(t), 8(a) and 8(b) and
that the Company has complied with all of the agreements and satisfied all of
the conditions herein contained and required to be complied with or satisfied
by the Company on or prior to the Closing Date.

     (d) Since the respective dates as of which information is given in the
Prospectus other than as set forth in the Prospectus (exclusive of any
amendments or supplements thereto subsequent to the date of this Agreement),
(i) there shall not have occurred  any change or any development involving a
prospective change in the condition, financial or otherwise, or the earnings,
business, management or operations of the Company, (ii) there shall not have
been any change or any development involving a prospective change in the
capital stock or in the long-term debt of the Company and (iii) the Company
shall not have incurred any liability or obligation, direct or contingent, the
effect of which, in any such case described in clause 8(d)(i), 8(d)(ii) or
8(d)(iii), in your judgment, is material and adverse and, in your judgment,
makes it impracticable to market the Shares on the terms and in the manner
contemplated in the Prospectus.

     (e)   You shall have received on the Closing Date an opinion (satisfactory
to you and counsel for the Underwriters), dated the Closing Date, of Katten
Muchin & Zavis, counsel for the Company, to the effect that:

           (i) the Company has been duly incorporated, is validly existing as a
      corporation in good standing under the laws of its jurisdiction of
      incorporation and has the corporate power and authority to carry on its
      business as described in the Prospectus and to own, lease and operate its
      properties;

           (ii) to such counsel's knowledge, the Company is duly qualified and
      is in good standing as a foreign corporation authorized to do business 
      in each jurisdiction in which the nature of its business or its 
      ownership or leasing of property requires such qualification, except
      where the failure to be so qualified would not have a material adverse
      effect on



                                       17


   18




      the business, prospects, financial condition or results of operations of
      the Company;

           (iii) all the outstanding shares of capital stock of the Company
      have been duly authorized and validly issued and are fully paid,
      non-assessable and not subject to any statutory preemptive rights, or to
      such counsel's knowledge, any contractual rights to subscribe for more
      shares;

           (iv) the Shares have been duly authorized and, when issued and
      delivered to the Underwriters against payment therefor as provided by
      this Agreement, will be validly issued, fully paid and non-assessable,
      and the issuance of such Shares will not be subject to any statutory
      preemptive rights, or to such counsel's knowledge, any contractual rights
      to subscribe for more shares;

           (v) this Agreement has been duly authorized, executed and delivered
      by the Company;

           (vi) the authorized capital stock of the Company conforms as to
      legal matters to the description thereof contained in the Prospectus;

           (vii) the Registration Statement has become effective under the Act,
      no stop order suspending its effectiveness has been issued and no
      proceedings for that purpose are, to such counsel's knowledge, pending
      before or contemplated by the Commission;

           (viii) the statements under the captions "Business--Government
      Regulations", "Management--Executive Compensation", "--Compensation
      Committee Interlocks and Insider Participation", "--Employment
      Agreements", "--Stock Option Plan", "--401k Plan", "--Limitation of
      Liability and Indemnification Matters", "--Certain Relationships and
      Related Transactions", "Description of Capital Stock--Certain Corporate
      Provisions", "Registration Rights" and "Underwriting" in the Prospectus 
      and Items 14 and 15 of Part II of the Registration Statement, insofar 
      as such statements constitute a summary of the legal matters,
      documents or proceedings referred to therein, fairly present the
      information called for with respect to such legal matters, documents and
      proceedings;

           (ix) the Company is not in violation of its charter or by-laws and,
      to such counsel's knowledge, the Company is not in default in the



                                       18


   19




      performance of any obligation, agreement, covenant or condition contained
      in any indenture, loan agreement, mortgage, lease or other agreement or
      instrument that is material to the Company to which the Company is a
      party or by which the Company or its property is bound;

           (x) the execution, delivery and performance of this Agreement by the
      Company, the compliance by the Company with all the provisions hereof
      and the consummation of the transactions contemplated hereby will not (A)
      require any consent, approval, authorization or other order of, or
      qualification with,  any court or governmental body or agency (except
      such as may be required under the securities or Blue Sky laws of the
      various states, the Nasdaq National Market, the National Association of
      Securities Dealers, Inc. or Delaware or Illinois Law in connection with
      the Company's reincorporation in Delaware), (B) conflict with or
      constitute a breach of any of the terms or, to such counsel's knowledge,
      provisions of, or a default under, the charter or by-laws of the Company
      or any indenture, loan agreement, mortgage, lease or other agreement or
      instrument that is material to the Company to which the Company is a
      party or by which the Company or its property is bound, (C) violate or
      conflict with any applicable law or any rule, regulation, judgment, order
      or decree of any court or any governmental body or agency having
      jurisdiction over the Company or its property or (D) result in the
      suspension, termination or revocation of any Authorization of the Company
      or any other impairment of the rights of the holder of any such
      Authorization;

           (xi) such counsel does not know of any legal or governmental
      proceedings pending or threatened to which the Company is or could be a
      party or to which any of their property is or could be subject that are
      required to be described in the Registration Statement or the Prospectus
      and are not so described, or of any statutes, regulations, contracts or
      other documents that are required to be described in the Registration
      Statement or the Prospectus or to be filed as exhibits to the
      Registration Statement that are not so described or filed as required by
      the Act;

           (xii) to such counsel's knowledge, the Company has not violated any
      Environmental Law or any provisions of the Employee Retirement Income
      Security Act of 1974, as amended, or the rules and regulations
      promulgated thereunder, except for such violations which, singly or in
      the aggregate, would not have a material adverse effect on the business,
      prospects, financial condition or results of operation of the Company;

           (xiii) to such counsel's knowledge, (A) the Company has such
      Authorizations of, and has made filings with and notices to, governmental
      or regulatory authorities and self-regulatory organizations and courts
      and



                                       19


   20




      other tribunals, including, without limitation, under any applicable
      Environmental Laws, as are necessary to own, lease, license and operate
      its respective properties and to conduct its business as presently
      conducted and as contemplated by the Prospectus, except where the failure
      to have any such Authorization or to make any such filing or notice would
      not, singly or in the aggregate, have a material adverse effect on the
      business, prospects, financial condition or results of operations of the
      Company; (B) each such Authorization is valid and in full force and
      effect and the Company is in compliance with all the terms and conditions
      thereof and with the rules and regulations of the authorities and
      governing bodies having jurisdiction with respect thereto; (C) no event
      has occurred (including, without limitation, the receipt of any notice
      from any authority or governing body) which allows or, after notice or
      lapse of time or both, would allow, revocation, suspension or termination
      of any such Authorization or results or, after notice or lapse of time or
      both, would result in any other impairment of the rights of the holder of
      any such Authorization; and (D) such Authorizations contain no
      restrictions that are burdensome to the Company; except where such
      failure to be valid and in full force and effect or to be in compliance,
      the occurrence of any such event or the presence of any such restriction
      would not, singly or in the aggregate, have a material adverse effect on
      the business, prospects, financial condition or results of operations of
      the Company;

           (xiv) the Company is not and, after giving effect to the offering
      and sale of the Shares and the application of the proceeds thereof as
      described in the Prospectus, will not be, an "investment company" as such
      term is defined in the Investment Company Act of 1940, as amended; and

           (xv) to such counsel's knowledge, there are no written contracts,
      agreements or understandings between the Company and any person granting
      such person the right to require the Company to file a registration
      statement under the Act with respect to any securities of the Company or
      to require the Company to include such securities with the Shares
      registered pursuant to the Registration Statement, except as set forth in
      the Prospectus;

           In addition, such counsel shall state that such counsel has 
participated in conferences with officers and representatives of the
Company, the Company's independent public accountants and you and your counsel,
at which the contents of the Registration Statement and the Prospectus were
discussed and (A) the Registration Statement and the Prospectus and any
supplement or amendment thereto (except for the financial statements, including
the notes thereto, schedules and other financial data included therein as to
which no opinion




                                       20


   21




need be expressed) comply as to form with the Act, and (B) (without taking any
further action to verify independently the statements made in the Registration
Statement and the Prospectus and, except as stated in the foregoing opinion,
without assuming responsibility for the accuracy, completeness or fairness of
such statements) (i) such counsel has no reason to believe that at the time the
Registration Statement became effective or on the date of this Agreement, the
Registration Statement and the form of prospectus subject to completion
included therein (except for the financial statements, including the notes
thereto, schedules  and other financial data as to which such counsel need not
express any belief) contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein not misleading and (ii) such counsel has no reason
to believe that the Prospectus, as amended or supplemented, if applicable
(except for the financial statements, including the notes thereto, schedules
and other financial data, as aforesaid) contains any untrue statement of a
material fact or omits to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.

     (f) You shall have received on the Closing Date an opinion (satisfactory
to you and counsel for the Underwriters), dated the Closing Date, of McAndrews,
Held & Malloy, Ltd., counsel for the Company, to the effect that:

           (i) To such counsel's knowledge, the Company owns or possesses, or
      can acquire on reasonable terms, all patents, patent rights, licenses,
      inventions, copyrights, know-how (including trade secrets and other
      unpatented and/or unpatentable proprietary or confidential information,
      systems or procedures), trademarks, service marks and trade names
      ("intellectual property") currently employed by them in connection with
      the business now operated by them except where the failure to own or
      possess or otherwise be able to acquire such intellectual property would
      not, singly or in the aggregate, have a material adverse effect on the
      business, prospects, financial condition or results of operation of the
      Company; and, to the best of such counsel's knowledge after due inquiry,
      the Company has not received any notice of infringement of or conflict
      with asserted rights of others with respect to any of such intellectual
      property which, singly or in the aggregate, if the subject of an
      unfavorable decision, ruling or finding, would have a material adverse
      effect on the business, prospects, financial condition or results of
      operations of the Company.

           (ii) The statements under the captions "Risk Factors--Dependence on
      Patents and Protection of Proprietary Information" and
      "Business--Intellectual Property and Proprietary Rights in the
      Prospectus",



                                       21


   22




     insofar as such statements constitute a summary of the legal 
     matters, documents or proceedings referred to therein, fairly
     present the information called for with respect to such legal 
     matters, documents and proceedings.

     The opinion of Katten Muchin & Zavis described in Section 8(e) above and
the opinion of McAndrews, Held & Malloy, Ltd. described in Section 8(f) above
shall be rendered to you at the request of the Company and shall so state
therein.

     (g) You shall have received on the Closing Date an opinion, dated the
Closing Date, of Latham & Watkins, counsel for the Underwriters, as to the
matters referred to in Sections 8(e)(iv), 8(e)(v), 8(e)(viii) (but only with
respect to the statements under the caption "Description of Capital
Stock--Certain Corporate Provisions" and "Underwriting") and the last paragraph
in Section 8(e).

     (h) You shall have received, on each of the date hereof and the Closing
Date, a letter dated the date hereof or the Closing Date, as the case may be,
in form and substance satisfactory to you, from Ernst & Young, LLP, independent
public accountants, containing the information and statements of the type
ordinarily included in accountants' "comfort letters" to Underwriters with
respect to the financial statements and certain financial information contained
in the Registration Statement and the Prospectus.

     (i) The Company shall have delivered to you the agreements specified in
Section 2 hereof which agreements shall be in full force and effect on the
Closing Date.

     (j) The Shares shall have been duly listed for quotation on the Nasdaq
National Market.

     (k) The Company shall not have failed on or prior to the Closing Date to
perform or comply with any of the agreements herein contained and required to
be performed or complied with by the Company on or prior to the Closing Date.

     The several obligations of the Underwriters to purchase any Additional
Shares hereunder are subject to the delivery to you on the applicable Option
Closing Date of such documents as you may reasonably request with respect to
the good standing of the Company, the due authorization and issuance of such
Additional Shares and other matters related to the issuance of such Additional
Shares.




                                       22


   23





     SECTION 9.  Effectiveness of Agreement and Termination.  This Agreement
shall become effective upon the execution and delivery of this Agreement by the
parties hereto.

     This Agreement may be terminated at any time on or prior to the Closing
Date by you by written notice to the Company if any of the following has
occurred:  (i) any outbreak or escalation of hostilities or other national or
international calamity or crisis or change in economic conditions or in the
financial markets of the United States or elsewhere that, in your judgment, is
material and adverse and, in your judgment, makes it impracticable to market
the Shares on the terms and in the manner contemplated in the Prospectus, (ii)
the suspension or material limitation of trading in securities or other
instruments on the New York Stock Exchange, the American Stock Exchange, the
Chicago Board of Options Exchange, the Chicago Mercantile Exchange, the Chicago
Board of Trade or the Nasdaq National Market or limitation on prices for
securities or other instruments on any such exchange or the Nasdaq National
Market, (iii) the suspension of trading of any securities of the Company on any
exchange or in the over-the-counter market, (iv) the enactment, publication,
decree or other promulgation of any federal or state statute, regulation, rule
or order of any court or other governmental authority which in your opinion
materially and adversely affects, or will materially and adversely affect, the
business, prospects, financial condition or results of operations of the
Company and its subsidiaries, taken as a whole, (v) the declaration of a
banking moratorium by either federal or New York State authorities or (vi) the
taking of any action by any federal, state or local government or agency in
respect of its monetary or fiscal affairs which in your opinion has a material
adverse effect on the financial markets in the United States.

     If on the Closing Date or on an Option Closing Date, as the case may be,
any one or more of the Underwriters shall fail or refuse to purchase the Firm
Shares or Additional Shares, as the case may be, which it has or they have
agreed to purchase hereunder on such date and the aggregate number of Firm
Shares or Additional Shares, as the case may be, which such defaulting
Underwriter or Underwriters agreed but failed or refused to purchase is not
more than one-tenth of the total number of Firm Shares or Additional Shares, as
the case may be, to be purchased on such date by all Underwriters, each
non-defaulting Underwriter shall be obligated severally, in the proportion
which the number of Firm Shares set forth opposite its name in Schedule I bears
to the total number of Firm Shares which all the non-defaulting Underwriters
have agreed to purchase, or in such other proportion as you may specify, to
purchase the Firm Shares or Additional Shares, as the case may be, which such
defaulting Underwriter or Underwriters agreed but failed or refused to purchase
on such date; provided that in no event shall the number of Firm Shares or
Additional Shares, as the case may be, which any Underwriter has agreed to
purchase pursuant to Section 2 hereof be increased




                                       23


   24




pursuant to this Section 9 by an amount in excess of one-ninth of such number
of Firm Shares or Additional Shares, as the case may be, without the written
consent of such Underwriter.  If on the Closing Date any Underwriter or
Underwriters shall fail or refuse to purchase Firm Shares and the aggregate
number of Firm Shares with respect to which such default occurs is more than
one-tenth of the aggregate number of Firm Shares to be purchased  by all
Underwriters and arrangements satisfactory to you and the Company for purchase
of such Firm Shares are not made within 48 hours after such default, this
Agreement will terminate without liability on the part of any non-defaulting
Underwriter and the Company.   In any such case which does not result in
termination of this Agreement, either you or the Company shall have the right
to postpone the Closing Date, but in no event for longer than seven days, in
order that the required changes, if any, in the Registration Statement and the
Prospectus or any other documents or arrangements may be effected. If, on an
Option Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Additional  Shares and the aggregate number of Additional Shares with
respect to which such default occurs is more than one-tenth of the aggregate
number of Additional Shares to be purchased on such date, the non-defaulting
Underwriters shall have the option to (i) terminate their obligation hereunder
to purchase such Additional Shares or (ii) purchase not less than the number of
Additional Shares that such non-defaulting Underwriters would have been
obligated to purchase on such date in the absence of such default.  Any action
taken under this paragraph shall not relieve any defaulting Underwriter from
liability in respect of any default of any such Underwriter under this
Agreement.

     SECTION 10.  Miscellaneous.  Notices given pursuant to any provision of
this Agreement shall be in writing via mail, overnight courier, hand delivery
or facsimile addressed as follows:  (i) if to the Company, to Nanophase
Technologies Corporation, 453 Commerce Street, Burr Ridge, Illinois  60521,
Attention:  Robert W. Cross, with a copy to Katten Muchin & Zavis, 525 West
Monroe Street, Suite 1600, Chicago, Illinois 60661, Attention:  Lawrence D.
Levin and (ii) if to any Underwriter, c/o Donaldson, Lufkin & Jenrette
Securities Corporation, 277 Park Avenue, New York, New York 10172, Attention:
Syndicate Department, or in any case to such other address as the person to be
notified may have requested in writing.

     The respective indemnities, contribution agreements, representations,
warranties and other statements of the Company and the several Underwriters set
forth in or made pursuant to this Agreement shall remain operative and in full
force and effect, and will survive delivery of and payment for the Shares,
regardless of (i) any investigation, or statement as to the results thereof,
made by or on behalf of any Underwriter, the officers or directors of any
Underwriter, any person controlling any Underwriter, the Company, the officers
or directors of the




                                       24


   25




Company or any person controlling the Company, (ii) acceptance of the Shares
and payment for them hereunder and (iii) termination of this Agreement.

     If for any reason the Shares are not delivered by or on behalf of the
Company as provided herein (other than as a result of any termination of this
Agreement pursuant to Section 9), the Company agrees to reimburse the several
Underwriters for all reasonable out-of-pocket expenses (including the
reasonable fees and disbursements of counsel) incurred by them. Notwithstanding
any termination of this Agreement, the Company shall be liable for all expenses
which it has agreed to pay pursuant to Section 5(i) hereof.  The Company also
agrees to reimburse the several Underwriters, their directors and officers and
any persons controlling any of the Underwriters for any and all reasonable 
fees and expenses (including, without limitation, the reasonable fees and 
disbursements of counsel) incurred by them in connection with enforcing their 
rights hereunder (including, without limitation, pursuant to Section 7 hereof).

     Except as otherwise provided, this Agreement has been and is made solely
for the benefit of and shall be binding upon the Company, the Underwriters, the
Underwriters' directors and officers, any controlling persons referred to
herein, the Company's directors and the Company's officers who signed the
Registration Statement and their respective successors and assigns, all as and
to the extent provided in this Agreement, and no other person shall acquire or
have any right under or by virtue of this Agreement.  The term "successors and
assigns" shall not include a purchaser of any of the Shares from any of the
several Underwriters merely because of such purchase.

     This Agreement shall be governed and construed in accordance with the laws
of the State of New York.

     This Agreement may be signed in various counterparts which together shall
constitute one and the same instrument.




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     Please confirm that the foregoing correctly sets forth the agreement
between the Company and the several Underwriters.


                                    Very truly yours,

                                    NANOPHASE TECHNOLOGIES CORPORATION

                                    By:________________________________
                                       Title:



DONALDSON, LUFKIN & JENRETTE
     SECURITIES CORPORATION
FURMAN SELZ LLC
CIBC OPPENHEIMER CORP.

Acting severally on behalf of
     themselves and the several
     Underwriters named in
     Schedule I hereto

By   DONALDSON, LUFKIN & JENRETTE
     SECURITIES CORPORATION

     By___________________________




                                       26


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                                   SCHEDULE I



                                                           Number of Firm Shares
Underwriters                                                  to be Purchased
Donaldson, Lufkin & Jenrette Securities 
  Corporation
Furman Selz LLC
CIBC Oppenheimer Corp.
                                                                
                                                                             
                                                                 ---------
                                                    Total        5,000,000
                                                                 =========





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                                    Annex I







                                       2