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Fluorescence

Selective Near-Infrared Fluorescent Probe for Monitoring Thiophenol in Real Water Samples and Living Cells

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Pages 1366-1376 | Received 09 Jun 2020, Accepted 26 Jul 2020, Published online: 06 Aug 2020
 

Abstract

Thiophenol (PhSH) and its derivatives are useful chemicals for synthetic applications; however, they are highly toxic to humans and other organisms. In this work, we developed a novel near-infrared (NIR) fluorescent probe for sensing and imaging PhSH. The probe system displays several advantageous features, including NIR emission (centered at approximately 730 nm), a large Stokes shift (150 nm), a turn-on responding mode, high selectivity toward thiophenol, and a low detection limit (0.23 μM). Furthermore, practical tests revealed that the probe can be applied to monitor PhSH in tap, lake, and river water samples and living cells.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (number 21804085).

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