The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2000
Filed:
Mar. 10, 1997
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A03F / ; G03F / ;
U.S. Cl.
CPC ...
430330 ; 430165 ; 430191 ; 430192 ; 430325 ; 430326 ;
Abstract
A method for fixing, on a substrate, functional material such as proteins, enzymes, polysaccharides, nucleic acids, microorganisms, viruses and cultured cells, includes the steps of (i) forming on the substrate a photosensitive layer containing DNQ, novolak, and optionally imidazole; (ii) applying onto the substrate functional material containing at least one amino group; (iii) before or after step (ii), irradiating in a pattern the photosensitive layer with light of appropriate wavelength(s) to convert DNQ to a ketene compound; and (iv) reacting the amino group with the ketene compound to fix via amido bonding the functional material to the substrate via the photosensitive layer along the pattern.