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Issue 4, 2018
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A turn-on fluorescent BOPHY probe for Cu2+ ion detection

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A new fluorine–boron compound BOPHY-PTZ was designed and synthesized. The fluorescent dye was used as a highly sensitive probe for Cu2+ ion detection. The mechanism of detection involved Cu2+ ion oxidation of the phenothiazine (PTZ) moiety and blocked the intramolecular charge transfer (ICT) process from the electron-donating PTZ moiety to the electron-accepting BOPHY moiety. BOPHY-PTZ showed a weak fluorescence in solution. However, it displayed a strong fluorescence signal enhancement upon the addition of Cu2+ ions, and 1.0 nM concentration of Cu2+ can be clearly detected. The assay is simple, sensitive and convenient, and it exhibits excellent selectivity for Cu2+ ions over the other metal ions. The BOPHY-PTZ probe could be used for Cu2+ ion detection in practical samples and for environmental monitoring related applications.

Graphical abstract: A turn-on fluorescent BOPHY probe for Cu2+ ion detection

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The article was received on 11 Oct 2017, accepted on 09 Jan 2018 and first published on 10 Jan 2018

Article type: Paper
DOI: 10.1039/C7NJ03911E
Citation: New J. Chem., 2018,42, 2520-2525
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    A turn-on fluorescent BOPHY probe for Cu2+ ion detection

    C. He, H. Zhou, N. Yang, N. Niu, E. Hussain, Y. Li and C. Yu, New J. Chem., 2018, 42, 2520
    DOI: 10.1039/C7NJ03911E

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