A near-infrared fluorescent probe for hydrogen polysulfides detection with a large Stokes shift

Spectrochim Acta A Mol Biomol Spectrosc. 2020 Dec 5:242:118755. doi: 10.1016/j.saa.2020.118755. Epub 2020 Aug 1.

Abstract

Due to the crucial biological roles of hydrogen polysulfides (H2Sn) in living systems, the selective determination of H2Sn is essential. In this work, we reported a turn-on fluorescent probe, JSI-Sn, for H2Sn with high sensitivity and good selectivity. Probe JSI-Sn displayed a near-infrared emission (λmaxEm = 701 nm) and a large Stokes shift (123 nm) in the presence of H2Sn in solution. Using probe JSI-Sn as an indispensable tool, the monitoring of intracellular H2Sn in living cells and zebrafish were realized.

Keywords: Bioimaging; Fluorescent probe; Hydrogen polysulfides; Large Stokes shift; Near-infrared.

MeSH terms

  • Animals
  • Fluorescent Dyes*
  • Hydrogen*
  • Sulfides
  • Zebrafish

Substances

  • Fluorescent Dyes
  • Sulfides
  • Hydrogen
  • polysulfide