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Reference type: Book Chapter
Authors: DiCesare JC, Parker J, Horne SN, Kita J, Earni R, Peeples C
Publication date: 2004
Chapter title: Progress in developing nerve agent sensors using combinatorial techniques.
Chapter number: 3
Page numbers: 17-22.
DOI: 10.1557/PROC-787-G2.3 Alternative URL: http://www.mrs.org/s_mrs/bin.asp?CID=2622&DID=60576&DOC=FILE.PDF

Book title: Molecularly Imprinted Materials-2003
Editors: Kofinas P, Sellergren B, Roberts MJ
Publisher: Materials Research Society
City: Warrendale
Series title: MRS Symposium Proceedings
Volume number: 787

Abstract: Development of a sensor capable of selective detection of specific nerve agents is imperative in today's atmosphere of terrorism. The sensor needs to be inexpensive, portable, reliable, absent of false positives and available to all military and first responders. By utilizing the techniques of molecular imprinting, combinatorial chemistry, silica sol-gel synthesis and lanthanide luminescence, a sensor for the detection of the hydrolysis product of the nerve agent soman is being developed. There are many parameters that require investigation in order for the sensor to become a reality. These parameters include 1) the selection of a chelate that can bind to the lanthanide and anchor the nerve agent simulant during the formation of the molecularly imprinted polymer, 2) the determination of the environment best suited for this complex formation, 3) the formation, as well as modification of the silica sol-gel for molecular imprinting to take place, and 4) the proper quantity and ratios of monomers used to create the three dimensional imprint. Key to the success of optimizing these parameters is the development of a combinatorial assay that allows for the synthesis and testing of tens of thousands of combinations of parameters. Work on the development of the combinatorial assay has lead to a method of preparing thin film polymers capable of analyzing the presence of nerve agent simulants. Current work is underway to validate the combinatorial assay and to synthesize and evaluate a library of sensor materials selective for nerve agents

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