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:
Jan. 21, 1992
Filed:
May. 01, 1987
Applicant:
Inventor:
William D Stanbro, Columbia, MD (US);
Assignee:
Biotronic Systems Corporation, Rockville, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 8201 ; 204403 ; 324658 ; 324663 ; 324686 ; 422 681 ; 422 69 ; 422 70 ; 422 90 ; 422 98 ; 427-2 ; 427 79 ; 427 80 ; 427 81 ; 435288 ; 435291 ; 435819 ; 436525 ; 436528 ;
Abstract
A dielectric material of a capacitive affinity sensor has a three-dimensional molecular binding site array. A glass base is layered with a binding agent like silane from which a polymeric backbone like polylysine extends. The polymeric backbone is prepared to accept receptor molecules like cortisol hemisuccinate to bind a specific antibody. Such an array changes dielectric properties between the two electrodes of the capacitive affinity sensor to greatly enhance sensitivity of the sensor.