A High-Sensitivity Coumarin-Based Fluorescent Probe for Monitoring Hydrogen Sulfide in Living Cells.

A novel coumarin-based fluorescence probe has been constructed for the selective and sensitive detection of hydrogen sulfide (H2S). This probe displays high sensitivity and linearity to H2S in degassed PBS buffers and fetal bovine serum. It reacts with H2S with high selectivity over Cys, GSH, and other anions. Meanwhile, successful detection of H2S in living cells was also demonstrated. [ABSTRACT FROM AUTHOR]