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Simple sensitive TNT detection

23 February 2012

Indian scientists have created a gel that gives a fluorescence response when exposed to particles of explosive trinitrotoluene – better known as TNT. By adding the gel to filter paper, they have shown how to make a cheap system for quick and easy TNT detection that is nonetheless highly sensitive.

……Ayyappanpillai Ajayaghosh and his team at the National Institute for Interdisciplinary Science and Technology in Trivandrum decided to investigate whether fluorescent gels could be used to detect TNT. They used OPVPF, a perfluoroarene based gelator known to form arene-perfluoroarene interactions in a brick wall arrangement. The team suspected that such an organisation might result in fluorescence quenching by the electron deficient aromatic TNT molecules…..

Read more:http://www.rsc.org/chemistryworld/News/2012/February/tnt-explosives-detection.asp

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Written by csirindia

February 25, 2012 at 1:03 pm

Posted in NIIST

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