Turn-on Phosphorescent Chemodosimeter for Hg2+ Based on a Cyclometalated Ir(III) Complex and Its Application in Time-Resolved Luminescence Assays and Live Cell Imaging
Inorganic Chemistry2014Vol. 53(21), pp. 11498–11506
Citations Over TimeTop 10% of 2014 papers
Jiaxi Ru, Liping Guan, Xiaoliang Tang, Wei Dou, Xiang Yao, Wanmin Chen, Yaming Liu, Guolin Zhang, Weisheng Liu, Yue Meng, Chunming Wang
Abstract
A novel "turn-on" phosphorescent chemodosimeter based on a cyclometalated Ir(III) complex has been designed and synthesized, which displays high selectivity and sensitivity toward Hg(2+) in aqueous media with a broad pH range of 4-10. Furthermore, by time-resolved photoluminescence techniques, some interferences from the short-lived background fluorescence can be eliminated effectively and the signal-to-noise ratio of the emission detection can be improved distinctly by using the chemodosimeter. Finally, the chemodosimeter can be used to monitor Hg(2+) effectively in living cells by confocal luminescence imaging.
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