A spectroscopic probe with FRET-ICT feature for thiophenol monitoring in real water samples

Zhang-Yi Li; Meng-Min Xiao; Yi Zheng; Bao-Xiang Zhao

doi:10.1016/j.saa.2022.121397

A spectroscopic probe with FRET-ICT feature for thiophenol monitoring in real water samples

Spectrochim Acta A Mol Biomol Spectrosc. 2022 Oct 15:279:121397. doi: 10.1016/j.saa.2022.121397. Epub 2022 May 16.

Authors

Zhang-Yi Li¹, Meng-Min Xiao², Yi Zheng³, Bao-Xiang Zhao⁴

Affiliations

¹ Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: lzyi12345@126.com.
² Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: xiaomengmin@163.com.
³ Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: 202022150216@mail.sdu.edu.cn.
⁴ Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China. Electronic address: bxzhao@sdu.edu.cn.

PMID: 35598576
DOI: 10.1016/j.saa.2022.121397

Abstract

Thiophenol (PhSH) is widely used in industry, however, it is extremely harmful to the environment and human health due to its high toxicity. In this work, we developed a new FRET-ICT-based ratiometric fluorescent and colorimetric probe (DMNP) for detecting PhSH. DMNP had an ultrahigh energy transfer efficiency (99.7%) and clear spacing of two emission peaks (133 nm). DMNP achieved a fast response to PhSH and exhibited drastic enhancement (over 2100 folds) of the fluorescence intensity ratio upon addition of PhSH. DMNP showed good linear response in the PhSH concentration ranges of 0.5-13 μM and 17.0-22.0 μM. Meanwhile, DMNP could also be applied to monitor PhSH in a variety of real water samples.

Keywords: Colorimetric probe; FRET; Ratiometric fluorescent probe; Thiophenol; Water samples.

MeSH terms

Fluorescence Resonance Energy Transfer* / methods
Fluorescent Dyes* / chemistry
Humans
Phenols
Spectrometry, Fluorescence
Sulfhydryl Compounds
Water / chemistry

Substances

Fluorescent Dyes
Phenols
Sulfhydryl Compounds
Water
thiophenol