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. 12, 2013
Filed:
Sep. 21, 2010
Ali Afzali, Ossining, NY (US);
Ageeth A. Bol, Yorktown Heights, NY (US);
Amal Kasry, White Plains, NY (US);
George S. Tulevski, White Plains, NY (US);
Ali Afzali, Ossining, NY (US);
Ageeth A. Bol, Yorktown Heights, NY (US);
Amal Kasry, White Plains, NY (US);
George S. Tulevski, White Plains, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Egypt Nanotechnology Center, , EG;
Abstract
A method of using an optical sensor, the optical sensor comprising a sensing surface comprising graphene layer, the sensing surface located on a substrate, includes determining a first optical absorption spectrum for the graphene layer by a spectrophotometer; adding an analyte, the analyte selected to cause a shift in the first optical absorption spectrum, to the graphene layer; determining a second optical absorption spectrum for the modified graphene layer by a spectrophotometer; determining a shift between the first optical absorption spectrum and the second optical absorption spectrum; and determining a makeup of the analyte based on the determined shift.