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:
Nov. 19, 2013
Filed:
Sep. 27, 2006
Christopher J. Woolverton, Kent, OH (US);
Christopher J. Woolverton, Kent, OH (US);
Kent State University, Kent, OH (US);
Abstract
A method for detecting a ligand is provided. Antibodies to a predetermined ligand are attached to substrates. The substrates are superparamagnetic, dyed beads. The beads are exposed to an electromagnetic field to immobilize the beads. The beads are contacted with a sample and the antibodies are allowed to recognize and capture the ligand in the sample. The electromagnetic field is optionally removed. The beads are contacted with a liquid crystalline material and the light transmission properties of the liquid crystalline material are examined for alteration caused by the presence of aggregates of the beads and the ligand. A functional cassette for the detection of ligands comprises a pair of opposed, transparent substrates defining a space therebetween, a pair of transparent electrodes disposed on at least a portion of the opposed substrates on a side facing the opposing substrate and defining a primary detection area, and a secondary detection area adapted to capture aggregates of a ligand and ligand-recognizing antibodies attached to superparamagnetic, dyed beads. The detection areas are in fluid communication with each other.