This work was supported through DARPA's Tactical Sensors Program through a Space and Naval Warfare Systems Center Contract (N66001-98-C-8514) and the National Science Foundation, Division of Material Research (Grant No. DMR 9900034). The technical point of contact for this DARPA program is Dr. Edward Carapezza.
Detection of TNT and Picric Acid on Surfaces and in Seawater by Using Photoluminescent Polysiloles
Article first published online: 28 MAY 2001
© 2001 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany
Angewandte Chemie International Edition
Volume 40, Issue 11, pages 2104–2105, June 1, 2001
How to Cite
Sohn, H., Calhoun, R. M., Sailor, M. J. and Trogler, W. C. (2001), Detection of TNT and Picric Acid on Surfaces and in Seawater by Using Photoluminescent Polysiloles . Angew. Chem. Int. Ed., 40: 2104–2105. doi: 10.1002/1521-3773(20010601)40:11<2104::AID-ANIE2104>3.0.CO;2-#
- Issue published online: 28 MAY 2001
- Article first published online: 28 MAY 2001
- Manuscript Revised: 16 MAR 2001
- Manuscript Received: 18 DEC 2000
Nitroaromatic explosives can be detected in a simple and rapid method by the quenching of the photoluminescence of fluorescent polysiloles. Quenching is achieved by electron transfer from the conduction band of the polysiloles to electron-poor molecules such as picric acid, nitrobenzene, 2,4-dinitrotoluene (DNT), and 2,4,6-trinitrotoluene (TNT). Dilute polymer solutions can also be employed as a forensic spray-on reagent to visualize TNT or picric acid residues under a UV lamp (see picture of the print of a nitrile-gloved hand that had been in contact with TNT).