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Chemical and biological sensing using tuning forks

United States Patent

July 10, 2012
View the Complete Patent at the US Patent & Trademark Office
A device for sensing a chemical analyte is disclosed. The device is comprised of a vibrating structure having first and second surfaces and having an associated resonant frequency and a wire coupled between the first and second surfaces of the vibrating structure, wherein the analyte interacts with the wire and causes a change in the resonant frequency of the vibrating structure. The vibrating structure can include a tuning fork. The vibrating structure can be comprised of quartz. The wire can be comprised of polymer. A plurality of vibrating structures are arranged in an array to increase confidence by promoting a redundancy of measurement or to detect a plurality of chemical analytes. A method of making a device for sensing a chemical analyte is also disclosed.
Tao; Nongjian (Scottsdale, AZ), Boussaad; Salah (Wilmington, DE)
Arizona Board of Regents (Scottsdale, AZ)
11/ 568,209
October 23, 2006
STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH OR DEVELOPMENT The U.S. Government has a paid-up license in the present invention and the right in limited circumstances to require the patent owner to license others on fair and reasonable terms as provided by the terms of Grant No. DE-FG03-01ER45943 awarded by the Department of Energy.