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:
Sep. 06, 2016
Filed:
Oct. 28, 2011
Stephen B. Roscoe, Woodbury, MN (US);
Kurt J. Halverson, Lake Elmo, MN (US);
Jesse D. Miller, Hudson, WI (US);
Stephanie J. Moeller, Stillwater, MN (US);
Jason W. Bjork, Newport, MN (US);
Stephen B. Roscoe, Woodbury, MN (US);
Kurt J. Halverson, Lake Elmo, MN (US);
Jesse D. Miller, Hudson, WI (US);
Stephanie J. Moeller, Stillwater, MN (US);
Jason W. Bjork, Newport, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Compositions that comprise water, a first indicator reagent that can be converted by a first biological activity to a first biological derivative, and a plurality of particles are provided. The first indicator reagent can comprise a fluorogenic enzyme substrate having a fluorophore selected from the group consisting of umbelliferone, 7-aminocoumarin, β-naphthylamine, β-naphthol, fluorescein, resorufin, 9H-(1,3-dichloro-9,9-dimethyl acridin-2-one), rhodamine 110, a derivative of any of the foregoing fluorophores, and a combination of any of the foregoing fluorophores. The particles are capable of receiving and retaining the first biological derivative from an aqueous liquid. The first biological derivative can be indicative of a microorganism. The compositions further can comprise a gelling agent. Methods of using the compositions to detect the presence or absence of a microorganism in a sample are also provided.