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Proceedings Paper

Utilizing upconverting phosphors for the detection of TNT
Author(s): Garry Glaspell; J. S. Tabb; Al Shearer; James Wilkins; Clint Smith; Ricky Massaro
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Paper Abstract

Herein we purpose to utilize upconverting phosphors to detect explosives. To detect TNT, antibodies specific to TNT are conjugated to the surface. The role of the antibodies is two fold; to bind a quencher and to accept TNT. The quencher is a bifunctional molecule, with one end containing a TNT analog and the other end being a dark fluorescent quenching dye. The dye is chosen so that the luminescence from the phosphor will be absorbed preventing it from emitting, reducing luminescence from the phosphor. However, in the presence of TNT the quencher that is bound with DNT will be displaced. With the quencher displaced the phosphor will be able to emit light indicating TNT is present in the select area.

Paper Details

Date Published: 29 April 2010
PDF: 6 pages
Proc. SPIE 7664, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XV, 76641G (29 April 2010); doi: 10.1117/12.846578
Show Author Affiliations
Garry Glaspell, U.S. Army Engineer Research and Development Ctr. (United States)
J. S. Tabb, Agave BioSystems (United States)
Al Shearer, Authentix (United States)
James Wilkins, U.S. Army Engineer Research and Development Ctr. (United States)
Clint Smith, U.S. Army Engineer Research and Development Ctr. (United States)
Ricky Massaro, U.S. Army Engineer Research and Development Ctr. (United States)


Published in SPIE Proceedings Vol. 7664:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XV
Russell S. Harmon; John H. Holloway; J. Thomas Broach, Editor(s)

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