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:
Feb. 18, 1992
Filed:
Jul. 21, 1988
A Peter Snyder, Bel Air, MD (US);
David B Greenberg, Cincinnati, OH (US);
Pasquale V Scarpino, Cincinnati, OH (US);
University of Cincinnati, Cincinnati, OH (US);
Abstract
The present invention concerns a spectrometric technique to determine microorganism detection and identification by taking advantage of the inherent extracellular enzymes present in living organisms, as opposed to dead, non-enzyme producing organisms. These enzymes are harnessed in the in vivo reactions with a non-fluorescent dye containing a select organic functional group that is known to be cleaved or hydrolyzed by the certain enzyme. The dye is tailored such that one of the products fluoresces, so that by employing a conventional spectrofluorimeter, the rate of fluorescence can be determined. By subjecting a plurality of samples having different cellular concentrations of viable microorganisms to the same non-fluorescent dye, or by subjecting the same bacterial sample to a number of different non-fluorescent dyes, a pattern of fluorescent rates emerge. By employing the pattern recognition set to standard microorganism fluorescent response curves, microorganism detection and identification can be determined. Thus, the present invention concerns a process for determining microorganism detection, identification and concentration.