A mitochondria-targeting fluorescent probe for the selective detection of glutathione in living cells
作者:Xue-Liang Liu、Li-Ya Niu、Yu-Zhe Chen、Mei-Ling Zheng、Yunxu Yang、Qing-Zheng Yang
DOI:10.1039/c6ob02407f
日期:——
We report a fluorescentprobe for the selectivedetection of mitochondrial glutathione (GSH). The probe, containing triphenylphosphine as a mitochondrial targeting group, exhibited ratiometric and selectivedetection of GSH over Cys/Hcy. The probe was used for imaging mitochondrial GSH in living HeLa cells.
BODIPY-Based Ratiometric Fluorescent Sensor for Highly Selective Detection of Glutathione over Cysteine and Homocysteine
作者:Li-Ya Niu、Ying-Shi Guan、Yu-Zhe Chen、Li-Zhu Wu、Chen-Ho Tung、Qing-Zheng Yang
DOI:10.1021/ja309079f
日期:2012.11.21
We report a ratiometric fluorescent sensor based on monochlorinated BODIPY for highly selective detection of glutathione (GSH) over cysteine (Cys)/homocysteine (Hcy). The chlorine of the monochlorinated BODIPY can be rapidly replaced by thiolates of biothiols through thiol halogen nucleophilic substitution. The amino groups of Cys/Hcy but not GSH further replace the thiolate to form amino-substituted BODIPY. The significantly different photophysical properties of sulfur- and amino-substituted BODIPY enable the discrimination of GSH over Cys and Hcy. The sensor was applied for detection of GSH in living cells.