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A turn-on fluorescence BOPHY probe for Cu2+ ions detection


A new fluorine boron compound BOPHY-PTZ was designed and synthesized. The fluorescence dye was used as a highly sensitive probe for Cu2+ ions detection. The mechanism of detection involved Cu2+ ions oxidization 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 weak fluorescence in solution. However, it displayed 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 shows excellent selectivity for Cu2+ ions over the other metal ions. The BOPHY-PTZ probe could be used for Cu2+ ions detection in practical samples, and for environment monitoring related applications.

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Publication details

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, Accepted Manuscript
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    A turn-on fluorescence BOPHY probe for Cu2+ ions detection

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

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