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Chemical and biological sensing using tuning forks

Patent ·
OSTI ID:1176453
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.
Research Organization:
Univ. of Arizona, Scottsdale, AZ (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG03-01ER45943
Assignee:
Arizona Board of Regents (Scottsdale, AZ)
Patent Number(s):
8,215,170
Application Number:
11/568,209
OSTI ID:
1176453
Country of Publication:
United States
Language:
English

References (3)

Frequency Encoding of Resonant Mass Sensors for Chemical Vapor Detection journal September 2003
Polymer Wire Chemical Sensor Using a Microfabricated Tuning Fork journal August 2003
Rapid scan Fourier transform detection of a frequency encoded quartz crystal microbalance array journal December 2003