Journal
TALANTA
Volume 132, Issue -, Pages 727-732Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2014.10.034
Keywords
Fluorescent probe; Copper ion; Hydrogen sulfide; Displacement approach; Imaging
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Funding
- National Natural Science Foundation of China [21302094]
- Jiangsu Natural Science Foundation [BK20130552]
- Fundamental Research Funds for the Central Universities [20620140214]
- Research Fund for the Doctoral Program of Higher Education of China [20130091120036]
- Jiangsu Province large scientific instruments shared services platform [BZ201307]
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A novel highly selective and sensitive fluorescent probe (NJ1) had been designed and synthesized for Cu2+ detection by fluorescence quenching mechanism, and then the enhancement of fluorescence intensity with the addition of hydrogen sulfide in complex NJ1Cu aqueous solution at physiological conditions were described. This on-off-on type fluorescence recognition system was a reversible process, which could be utilized to monitor copper ion and hydrogen sulfide based on a complex Nj1Cu formation-Cu2+ displacement approach. Importantly, this real-time recognition process of Cu2+ and hydrogen sulfide exhibited excellent anti-interference ability. In addition, this new fluorescent probe also has potential utility for Cu2+ and hydrogen sulfide detection in living cells, providing a potential tool for investigating copper ion and hydrogen sulfide in living systems or environment. (C) 2014 Elsevier B.V. All rights reserved.
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