0001193125-03-035712 10-Q 4 20030630 20030813 NANOPHASE TECHNOLOGIES CORPORATION 0000883107 3390 363687863 IL 1231 10-Q 34 000-22333 03840557 453 COMMERCE ST BURR RIDGE IL 60521 6303231200 453 COMMERCE STREET BURR RIDGE IL 60521 10-Q 1 d10q.htm FORM 10-Q EX-31.1 3 dex311.htm CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULES 13A-14(A) EX-31.2 4 dex312.htm CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULES 13A-14(A) EX-32 5 dex32.htm CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER