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:
Mar. 03, 2009
Filed:
May. 08, 2003
Brian T. Cunningham, Lexington, MA (US);
Peter Y. LI, Andover, MA (US);
Constance Chang-hasnain, Palo Alto, CA (US);
Carlos Mateus, Albany, CA (US);
Brian T. Cunningham, Lexington, MA (US);
Peter Y. Li, Andover, MA (US);
Constance Chang-Hasnain, Palo Alto, CA (US);
Carlos Mateus, Albany, CA (US);
SRU Biosystems, Inc., Woburn, MA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
An apparatus and method for detection of peak wavelength values of colorimetric resonant optical biosensors using tunable filters and tunable lasers is provided. Biomolecular interactions may be detected on a biosensor by directing collimated white light towards a surface of the biosensor. Molecular binding on the surface of the biosensor is indicated by a shift in the peak wavelength value of reflected or transmitted light from the biosensor, while an increase in the wavelength corresponds to an increase in molecular absorption. A tunable laser light source may generate the collimated white light and a tunable filter may receive the reflected or transmitted light and pass the light to a photodiode sensor. The photodiode sensor then quantifies an amount of the light reflected or transmitted through the tunable filter as a function of the tuning voltage of the tunable filter.