Abstract
A new thiophenyl pyrazoline probe for Cu2+ in aqueous solution was synthesized and characterized by IR, NMR, HRMS and X-ray analysis. The probe displays remarkably high selectivity and sensitivity for Cu2+ with a detection limit of 1.919 × 10−7 M in aqueous solution (EtOH:HEPES = 1:1, v/v, 0.02 M, pH = 7.2). In addition, the probe is further successfully used to image Cu2+ in living cells and the probe possesses good reversibility.
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Acknowledgments
This study was supported by 973 Program (2010CB933504) and National Natural Science Foundation of China (90813022 and 20972088).
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Meng-Meng Li and Wen-Bo Zhao contributed equally to this work.
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Li, MM., Zhao, WB., Zhang, TT. et al. A New Thiophenyl Pyrazoline Fluorescent Probe for Cu2+ in Aqueous Solution and Imaging in Live Cell. J Fluoresc 23, 1263–1269 (2013). https://doi.org/10.1007/s10895-013-1259-x
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DOI: https://doi.org/10.1007/s10895-013-1259-x