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. 11, 2001
Filed:
Mar. 23, 2000
Axiom Biotechnologies, Inc., San Diego, CA (US);
Abstract
Sensitive methods for identifying compounds having biological activity comprising combining living cells with two fluorescent membrane permeable ionic dyes having the same charge sign, the first of which has an emission spectrum which overlaps the excitation spectrum of the second fluorescent membrane penetrative dye. The fluorescence is then induced by illuminating the dyes at a wavelength corresponding to the excitation spectrum of the first fluorescent dye and emission is then registered at a wavelength corresponding to the emission spectrum of the second fluorescent dye (FRET). The change in the FRET is indicative of a modulation of cell membrane potential by the biologically active compounds.