Switchable and selective detection of Zn2+ or Cd2+ in living cells based on 3'-O-substituted arrangement of benzoxazole-derived fluorescent probes

Two benzoxazole-derived ESIPT fluorescent sensors and show highly selective detection of Zn(2+) and Cd(2+), respectively, in aqueous solution and living cells. The selectivity switching from Zn(2+) to Cd(2+) is attributed to the different binding mode which is dependent on the 3'-O-substituted...

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Bibliographic Details
Published in:	Chemical communications (Cambridge, England) Vol. 50; no. 56; p. 7514
Main Authors:	Xu, Yongqian, Xiao, Liangliang, Sun, Shiguo, Pei, Zhichao, Pei, Yuxin, Pang, Yi
Format:	Journal Article
Language:	English
Published:	England 18-07-2014
Subjects:	Benzoxazoles - chemistry Benzoxazoles - metabolism Cadmium - chemistry Cadmium - metabolism Cell Line, Tumor Female Fluorescent Dyes - chemistry Fluorescent Dyes - metabolism Humans Zinc - chemistry Zinc - metabolism
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Summary:	Two benzoxazole-derived ESIPT fluorescent sensors and show highly selective detection of Zn(2+) and Cd(2+), respectively, in aqueous solution and living cells. The selectivity switching from Zn(2+) to Cd(2+) is attributed to the different binding mode which is dependent on the 3'-O-substituted arrangement.
ISSN:	1364-548X
DOI:	10.1039/c4cc02335h