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Electrostatic thin film chemical and biological sensor

United States Patent

January 19, 2010
View the Complete Patent at the US Patent & Trademark Office
A chemical and biological agent sensor includes an electrostatic thin film supported by a substrate. The film includes an electrostatic charged surface to attract predetermined biological and chemical agents of interest. A charge collector associated with said electrostatic thin film collects charge associated with surface defects in the electrostatic film induced by the predetermined biological and chemical agents of interest. A preferred sensing system includes a charge based deep level transient spectroscopy system to read out charges from the film and match responses to data sets regarding the agents of interest. A method for sensing biological and chemical agents includes providing a thin sensing film having a predetermined electrostatic charge. The film is exposed to an environment suspected of containing the biological and chemical agents. Quantum surface effects on the film are measured. Biological and/or chemical agents can be detected, identified and quantified based on the measured quantum surface effects.
Prelas; Mark A. (Columbia, MO), Ghosh; Tushar K. (Columbia, MO), Tompson, Jr.; Robert V. (Columbia, MO), Viswanath; Dabir (Columbia, MO), Loyalka; Sudarshan K. (Columbia, MO)
The Curators of the University of Missouri (Columbia, MO)
11/ 639,405
December 13, 2006
STATEMENT OF GOVERNMENT INTEREST This invention was made with government assistance from the Department of Energy Grant No ID NATO HITECH.LG 970587. The Government has certain rights in the invention.