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Issue 79, 2012
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FRET- and PET-based sensing in a single material: expanding the dynamic range of an ultra-sensitive nitroaromatic explosives assay

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Abstract

A polyethylenimine polymer derivatized with pyrene moieties suitable for the fluorescence-based detection of nitroaromatic explosives (NAC) in aqueous systems is described. The system exhibits an exceptionally wide dynamic sensing range of 7 orders of magnitude (from 33 ppt to 225 ppm TNT or Tetryl). This broad range was achieved by the combination of FRET and PET sensing mechanisms in a single material. The sensing material is suitable for a paper strip assay. Simplicity, selectivity, and the wide dynamic range suggest this material for explosives detection in the field.

Graphical abstract: FRET- and PET-based sensing in a single material: expanding the dynamic range of an ultra-sensitive nitroaromatic explosives assay

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Supplementary files

Article information


Submitted
22 Jun 2012
Accepted
19 Aug 2012
First published
20 Aug 2012

Chem. Commun., 2012,48, 9903-9905
Article type
Communication

FRET- and PET-based sensing in a single material: expanding the dynamic range of an ultra-sensitive nitroaromatic explosives assay

Y. Wang, A. La, C. Brückner and Y. Lei, Chem. Commun., 2012, 48, 9903
DOI: 10.1039/C2CC34492K

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