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. 2018 Mar 1:179:426-429.
doi: 10.1016/j.talanta.2017.10.062. Epub 2017 Nov 24.

Ormosil-coated conjugated polymers for the detection of explosives in aqueous environments

Ross N Gillanders  1 , Iain A Campbell  1 , James M E Glackin  1 , Ifor D W Samuel  2 , Graham A Turnbull  3
Affiliations
Free article

Ormosil-coated conjugated polymers for the detection of explosives in aqueous environments

Ross N Gillanders et al. Talanta. .
Free article

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.

Keywords: Aqueous explosives; Optical sensing; Organic semiconductors; Sol-gels; Super yellow.

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