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. 18, 2011
Filed:
Jul. 13, 2009
Hisashi Ohtsuka, Ashigarakami-gun, JP;
Hisashi Ohtsuka, Ashigarakami-gun, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A sensor-chip includes a sensor-portion having at least a metal-layer deposited on a surface of a dielectric-plate. A fluorescent-label binding-substance in an amount corresponding to the amount of a detection-target-substance in a liquid-sample binds onto the sensor-portion. The amount of the detection-target-substance is detected based on the amount of light generated by excitation of a fluorescent-label in the fluorescent-label binding-substance. A fluorescent-substance the charge state of which changes in the liquid-sample according to the pH of the liquid-sample, and which contains a plurality of fluorescent-dye-molecules enclosed by a material that transmits fluorescence output from the fluorescent-dye-molecules, is used as the fluorescent-label. With the fluorescent-label binding-substance bound to the sensor-portion, the fluorescent-label is attracted to the sensor-portion by adjusting the pH of the sample-liquid to neutralize the charge state of the fluorescent-substance, thereby attracting the fluorescent-label onto the sensor-portion. In this state, the amount of the detection-target-substance is detected.