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:
Jul. 06, 2010
Filed:
May. 09, 2008
Peter Kiesel, Palo Alto, CA (US);
Noble M Johnson, Menlo Park, CA (US);
Meng H Lean, Briarcliff Manor, NY (US);
H. Ben Hsieh, Mountain View, CA (US);
Michael a Kneissl, Mountain View, CA (US);
Peter Kiesel, Palo Alto, CA (US);
Noble M Johnson, Menlo Park, CA (US);
Meng H Lean, Briarcliff Manor, NY (US);
H. Ben Hsieh, Mountain View, CA (US);
Michael A Kneissl, Mountain View, CA (US);
Palo Alto Research Center, Inc., Palo Alto, CA (US);
Abstract
A compact sensor for detecting the presence of biological or chemical species includes a microdisk laser and a wavelength shift detector. The microdisk laser is coated with a biological or chemical recognition element, which binds preferentially with a target analyte. Because the recognition element and the target analyte adhere to the sidewall surface of the microdisk laser, they increase the effective diameter of the laser, which shifts the output wavelength by a detectable amount. The presence of a wavelength shift indicates the presence of the target analyte, and the magnitude of the wavelength shift corresponds to the mass load of the target analyte on the sidewall surface of the microdisk laser.