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Carbon-dot-based ratiometric fluorescent sensor for detecting hydrogen sulfide in aqueous media and inside live cells

2012; Royal Society of Chemistry; Volume: 49; Issue: 4 Linguagem: Inglês

10.1039/c2cc37329g

1364-548X

Changmin Yu, Xizhen Li, Fang Zeng, Fangyuan Zheng, Shuizhu Wu,

Molecular Sensors and Ion Detection

A FRET ratiometric fluorescent sensor was developed for detecting H2S in aqueous media and serum, as well as inside live cells. For this sensor, carbon dots serve as the energy donor and also the anchoring site for the probe. This sensor is highly selective and sensitive with a detection limit of 10 nM which is the lowest among fluorescent H2S sensors.