Issue 18, 2024

Water-recyclable and reusable fluorescent sensors for nerve gas mimetic detection

Abstract

Herein, the serendipitous discovery of two water-recyclable and reusable fluorescent sensors IMPC (cyan–blue–cyan) and IMPC-OH (green–blue–green) is reported for sensing nerve agent simulants diethylcyanophosphonate and diethylchlorophosphate, respectively, with high sensitivity, short response time, and low detection limits. The unique features of these probes are their regeneration with the addition of a green and cheap solvent, namely water in CHCl3, and ease of fabrication into a portable paper-strip system that can also be regenerated. Various spectroscopic studies were employed to understand the mechanism of sensing and regeneration of both probes; the results reveal that water plays a critical role in the hydrolysis of the adduct formed with DCNP and DCP, which enables the retrieval of the probe with its original fluorescence.

Graphical abstract: Water-recyclable and reusable fluorescent sensors for nerve gas mimetic detection

Supplementary files

Article information

Article type
Paper
Submitted
03 Jun 2024
Accepted
22 Jul 2024
First published
05 Aug 2024

Analyst, 2024,149, 4714-4722

Water-recyclable and reusable fluorescent sensors for nerve gas mimetic detection

A. Thakur, P. A. Chaudhran and A. Sharma, Analyst, 2024, 149, 4714 DOI: 10.1039/D4AN00789A

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