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

Ross N. Gillanders, Iain A. Campbell, James M. E. Glackin, Ifor D. W. Samuel, Graham Alexander Turnbull

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)426-429
JournalTalanta
Volume179
Early online date3 Nov 2017
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Organic semiconductors
  • Sol-gels
  • Aqueous explosives
  • Optical sensing
  • Super yellow

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