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:
Oct. 15, 1991
Filed:
Sep. 15, 1988
Applicant:
Inventor:
Arnold L Newman, Kensington, MD (US);
Assignee:
Biotronic Systems Corporation, Rockville, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12M / ;
U.S. Cl.
CPC ...
435288 ; 435291 ; 435817 ; 204403 ;
Abstract
A biochemical analyte sensor comprises a pair of electrical conductors in a fluid environment. Between the conductors is a surface of silicone rubber, for instance. An enzyme/substrate combination causes molecules of a volatile material to be produced in the fluid. The volatile material nucleates as bubbles near the surface of the sensor. The bubbles displace molecules of the fluid from the surface and drastically alter the dielectric properties on or near the sensor surface.