Journal
DYES AND PIGMENTS
Volume 98, Issue 1, Pages 146-152Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2013.01.026
Keywords
Fluorescent probe; Copper ion; Aqueous media; Coumarin; Living cell; High selectivity
Funding
- National Natural Scientific Foundation of China [21201092]
- Research Fund for the Doctoral Program of Higher Education [20120211120020]
- Gansu NST [1208RJYA028]
- Fundamental Research Funds for the Central Universities [Lzujbky-2012-65, Lzujbky-2012-203]
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In this work, we have successfully provided a new fluorescent probe based on coumarin and quinoline (CQ) for detecting copper ion. This system utilizes such a chemical process, which responses instantaneously at room temperature with linear proportionality to the amount of copper ion. The receptor can be applied to monitoring of Cu2+ ion in aqueous solution with a pH span 5-11. The chemosensor CQ has a high fluorescence on/off ratio of over 48 and exhibits a high selectivity and sensitivity toward Cu2+ over other common metal ions in near aqueous media. And the compound CQ can easily stain living cells, having potential application in biology. (C) 2013 Elsevier Ltd. All rights reserved.
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