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.

Date of Patent:
Mar. 12, 1991

Filed:

Apr. 01, 1988
Applicant:
Inventors:

Tetsuro Asakura, Koganei, JP;

Makoto Demura, Koganei, JP;

Takeshi Kuroo, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12Q / ; G01N / ;
U.S. Cl.
CPC ...
435177 ; 204403 ; 435182 ; 435817 ;
Abstract

A silk fibroin membrane containing an entrapped biocatalyst such as an enzyme or microorganism is provided by forming a mixture of a biocatalyst solution and a silk fibroin solution, forming a membrane by casting the mixture, drying the membrane and mechanically treating the resultant membrane at a temperature and humidity to produce the membrane in .beta.-form and to structurally stabilize the membrane. Mechanically treating may be by stretching or compressing. A biocatalyst sensor is formed by coating an electrically conductive substrate with a gas-permeable layer and coating the gas-permeable layer with the silk fibroin membrane containing an entrapped biocatalyst.


Find Patent Forward Citations

Asakura, Tetsuro. (1991). Biocatalyst entrapped in a silk fibroin membrane (U.S. Patent No. 4999295). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4999295

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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