Thiazole sulfonamide based ratiometric fluorescent chemosensor with a large spectral shift for zinc sensing |
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| Authors: | Aasif Helal |
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| Affiliation: | Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea |
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| Abstract: | A new thiazole sulfonamide (TTP, 1) based Zn2+ selective intrinsic chemosensor has been synthesized and investigated. The chemosensor shows a selective fluorescence enhancement (3.0 fold) with Zn2+ over biologically relevant cations (Ca2+, Mg2+, Na+, and K+) and biologically non-relevant cations (Cd2+) in an aqueous ethanol system. It produces an increase in the quantum yield and a longer emission wavelength shift (64 nm) on Zn2+ binding with the potential of a ratiometric assay. |
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| Keywords: | Thiazole sulfonamide Chemosensor Fluorescence Ratiometric sensing of Zn2+ ESIPT |
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