SARBANES-OXLEY CERTIFICATIONS


I, Robert M. Bernstein, certify that:

1.  I have reviewed this report on Form 10-K, filed by Material Technologies,
    Inc. for the year ended December 31, 2002;

2.  Based on my knowledge, this report does not contain any untrue statement of
    a material fact or omit to state a material fact necessary to make the
    statements made, in light of the circumstances under which such statements
    were made, not misleading with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial
    information included in this Form 10-K report, fairly present in all
    material respects the financial condition, results of operations and cash
    flows of the registrant as of, and for, the periods presented in this
    report;

4.  The registrant's other certifying officers and I are responsible for
    establishing and maintaining disclosure controls and procedures (as defined
    in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

                a) designed such disclosure controls and procedures to ensure
                   that material information relating to the registrant, is made
                   known to us by others within those entities, particularly
                   during the period in which this report is being prepared;

                b) evaluated the effectiveness of the registrant's disclosure
                   controls and procedures as of a date within 90 days prior to
                   the filing date of this report (the "Evaluation Date"); and

                c) presented in this report our conclusions about the
                   effectiveness of the disclosure controls and procedures
                   based on our evaluation as of the Evaluation Date;

5.  The registrant's other certifying officers and I have disclosed, based on
    our most recent evaluation, to the registrant's auditors and the audit
    committee or registrant's board of directors (or persons performing the
    equivalent functions):

                a) all significant deficiencies in the design or operation of
                   internal controls which could adversely affect the
                   registrant's ability to record, process, summarize and report
                   financial data and have identified for the registrant's
                   auditors any material weaknesses in internal controls; and

                b) any fraud, whether or not material, that involves management
                   or other employees who have a significant role in the
                   registrant's internal controls; and

6.  The registrant's other certifying officers and I have indicated in this
    report whether or not there were significant changes in internal controls or
    in other factors that could significantly affect internal controls
    subsequent to the date of our most recent evaluation, including any
    corrective actions with regard to significant deficiencies and material
    weaknesses.


Date: March 28, 2003                     By: /s/ Robert M. Bernstein
                                              Robert M. Bernstein
                                              Chief Executive Officer