Two simple but effective turn-on benzothiazole-based fluorescent probes for detecting hydrogen sulfide in real water samples and HeLa cells

Anal Chim Acta. 2022 Jan 2:1189:339225. doi: 10.1016/j.aca.2021.339225. Epub 2021 Oct 30.

Abstract

Two simple turn-on fluorescent probes, containing a benzothiazole and the 2,4-dinitrobenzenesulfonyl group, were designed for detecting H2S. Two probes exhibited good selectivity and high sensitivity, which were applied to detect the H2S in real water samples. Probe P2 with a positive charge had better solubility than probe P1 in water; therefore, probe P2 was successfully applied to detect both the endogenous and exogenous H2S in lysosomes of living HeLa cells.

Keywords: Cell image; H(2)S; Lysosome-targeted; PET; Turn-on fluorescent probes; Water solubility.

MeSH terms

  • Benzothiazoles
  • Fluorescent Dyes*
  • HeLa Cells
  • Humans
  • Hydrogen Sulfide*
  • Optical Imaging
  • Water

Substances

  • Benzothiazoles
  • Fluorescent Dyes
  • Water
  • Hydrogen Sulfide