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

TALANTA

卷:179

Article

Gillanders, Ross N.¹  Campbell, Iain A.¹  Glackin, James M. E.¹  Samuel, Ifor D. W.¹  Turnbull, Graham A.¹ 

[1] Univ St Andrews, Sch Phys & Astron, SUPA, Organ Semicond Ctr, St Andrews KY16 9SS, Fife, Scotland

关键词: Organic semiconductors;    Sol-gels;    Aqueous explosives;    Optical sensing;    Super yellow;   

DOI  :  10.1016/j.talanta.2017.10.062

来源: Elsevier

【 摘 要 】

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/IFF-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.

【 授权许可】

Free