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:
Dec. 05, 2017
Filed:
Nov. 08, 2013
Rashid Bashir, Champaign, IL (US);
Bobby Reddy, Savoy, IL (US);
Muhammad a Alam, West Lafayette, IN (US);
Pradeep R Nair, Kerali, IN;
Jonghyun Go, Seongnam-si, KR;
Rashid Bashir, Champaign, IL (US);
Bobby Reddy, Savoy, IL (US);
Muhammad A Alam, West Lafayette, IN (US);
Pradeep R Nair, Kerali, IN;
Jonghyun Go, Seongnam-si, KR;
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
Provided herein are methods and devices for measuring pH and for amplifying a pH signal to obtain ultrasensitive detection of changes in pH. This is achieved by providing a sensor and a transducer, wherein the sensor transconductance is sensitive to changes in pH and the transducer transconductance is not affected by pH change. The transducer instead compensates for changes in the sensor transconductance arising from pH change. The unique configuration of the sensor and transducer with respect to each other provides substantial increases in a pH amplification factor, thereby providing pH sensing devices with a giant Nernst response and, therefore, effectively increased pH sensitivity.