A novel FRET-based ratiometric fluorescent probe H2S-CR for the quantitative detection of H2S was designed and synthesized. It exhibits a response time of 20 min, a considerable fluorescence signal enhancement (15 fold), and an extremely low detection limit (19 nM). It can be successfully applied to imaging H2S in living cells.
K. Huang, L. Yu, P. Xu, X. Zhang and W. Zeng, RSC Adv., 2015, 5, 17797 DOI: 10.1039/C4RA16578K
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