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Updated: Feb 16, 2026

Research and Development of High-performance Explosives
Published on: February 20, 2016
Ormosil-coated conjugated polymers for the detection of explosives in aqueous environments
Ross N Gillanders1, Iain A Campbell1, James M E Glackin1
1Organic Semiconductor Centre, SUPA, School of Physics & Astronomy, University of St Andrews, Fife KY16 9SS, Scotland, United Kingdom.
Abstract:
A fluorescence-based sensor for detecting explosives, based on a conjugated polymer coated with an ormosil layer, has been developed for use in aqueous environments. The conjugated polymer Super Yellow was spin-coated onto glass substrates prior to a further spin-coating of an MTEOS/TFP-TMOS-based ormosil film, giving an inexpensive, solution-based barrier material for ruggedization of the polymer to an aqueous environment. The sensors showed good sensitivity to 2,4-DNT in the aqueous phase at micromolar and millimolar concentrations, and also showed good recovery of fluorescence when the explosive was removed.
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