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. 29, 2002
Filed:
Sep. 20, 2000
Applicant:
Inventors:
Joseph R. Lakowicz, Ellicott City, MD (US);
Henryk Szmacinski, Carmel, IN (US);
Assignee:
University of Maryland, Baltimore, Baltimore, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/00 ;
U.S. Cl.
CPC ...
C12Q 1/00 ;
Abstract
A system and method of optically measuring Na and K in a sample such as blood which contains high concentrations Na (up to 160 mM) and K (up to 6.5 mM) using a photoluminescent probe having intrinsic analyte-induced lifetime changes. Specifically, the use of lifetime-based sensing of Na and K at the extracellular concentrations present in whole blood or, blood serum. The preferred embodiment uses phase-modulation fluorometry.