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. 22, 2008
Filed:
Mar. 02, 2004
Marc S. Weinberg, Needham, MA (US);
Jeffrey Borenstein, Holliston, MA (US);
Christopher E. Dubé, Lexington, MA (US);
Ralph Hopkins, Chestnut Hill, MA (US);
Edwin Carlen, Cambridge, MA (US);
Marc S. Weinberg, Needham, MA (US);
Jeffrey Borenstein, Holliston, MA (US);
Christopher E. Dubé, Lexington, MA (US);
Ralph Hopkins, Chestnut Hill, MA (US);
Edwin Carlen, Cambridge, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
Electrostatic capacitance measurements are used to detect chemical or biological analytes, or chemical interactions, with great sensitivity. A diaphragm is coated with a material capable of selectively interacting with an analyte of interest, and interaction of the analyte with the coating exerts stresses tangential to the diaphragm's surface. These stresses cause diaphragm displacements that are sensed as varying capacitance.