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. 11, 2000
Filed:
Aug. 05, 1997
Applicant:
Inventor:
Christiane Munkholm, Salem, MA (US);
Assignee:
Bayer Corporation, E. Walpole, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436113 ; 436106 ; 436164 ; 436172 ; 436800 ; 422 55 ; 422 8205 ; 422 8207 ; 422 8208 ; 422 8211 ;
Abstract
The present invention provides an ammonia sensor having a pH sensitive fluorophore immobilized in a hydrophobic polymer, wherein the fluorophore can react quantitatively with ammonia and the transducing moiety of the fluorophore is neutrally charged when deprotonated. The present invention also provides a method for detecting ammonia using the ammonia sensor and optical sensing devices that include the ammonia sensor.