Fluorometric sensing of Cu ion with smart fluorescence light-up probe, triazolylpyrene (Py) |
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Authors: | Subhendu Sekhar Bag Rajen KunduSangita Talukdar |
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Institution: | Bioorganic Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039 Assam, India |
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Abstract: | We report the detection of Cu2+ ion with fluorescence light-up probe, triazolylpyrene (TNDMBPy). Thus, the probe showed a remarkable fluorescence enhancement of both of the monomer and excimer emissions and a 2:1 probe-Cu2+ complexation with high selectivity, high stability constant and low detection limit. Formation of the excimer was also rationalized on the basis of DFT calculation. Our probe is also capable of sensing SDS micelle-encapsulated-Cu2+ ion in aqueous media with high association constant, thus, showing its practical utility. Thus, our probe could be used as an efficient Cu2+ ion selective fluorescence light-up probe, and may find applications in chemical and biological systems. |
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Keywords: | Click fluorophore fluorescence light-up probe Chemosensor Selective detection of Cu(II) ion Cu(II) ion detection inside micelle Excimer/monomer fluorescence |
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