A simple H2S fluorescent probe with long wavelength emission: Application in water, wine, living cells and detection of H2S gas. (March 2020)

• Record Type: Journal Article
• Authors: Zhong, Keli; Zhou, Shiyi; Yan, Xiaomei; Li, Xuepeng; Hou, Shuhua; Cheng, Lei; Gao, Xue; Li, Yang; Tang, Lijun
• Is Part Of: Dyes and pigments. Volume 174(2020)
• Publication Date: 2020-03
• Subjects: H2S -- Long-wavelength emission -- Fluorescent probe -- Wine sample -- Bioimaging; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2019.108049
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: As an important endogenous signal molecule, abnormal levels of H2 S are closely related with many diseases. Although numerous H2 S-specific fluorescent probes have been designed, most of them have some limitations including synthetic complexity, short emission wavelength, restricted applications. In this work, a simple H2 S selective fluorescent probe (L ) has been designed and synthesized by two-step reactions using 4-diethylaminosalicylaldehyde and 1, 4-dimethylpyridinium iodide as raw materials. Probe L displays high selectivity and sensitivity to H2 S in DMF/H2 O (4/6, v/v, HEPES, 10 mM, pH = 7.4) with a long-wavelength emission, a large Stokes shift, and good anti-interference ability. The practical applicabilities of probe L to detect H2 S were evaluated in actual water samples, wine samples, and living cells. Moreover, the L -doped polylactic acid (PLA) nanofibrous film prepared by electrospinning can be used to detect H2 S gas. Graphical abstract: Image 1 Highlights: A simple fluorescent turn-on H2 S probe with D-π-A structure was synthesized. The synthetic process of probe L with a long wavelength emission is facile. Probe L with large Stokes shift can recognize H2 S in water, wine and living cells. The L -doped electrospinning nanofibrous film is capable to detect H2 S gas.