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Issue 12, 2018
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A novel water soluble pillar[5]arene and phenazine derivative self-assembled pseudorotaxane sensor for the selective detection of Hg2+ and Ag+ with high selectivity and sensitivity

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Abstract

We design and synthesize a novel bifunctional supramolecular pseudorotaxane chemosensor (G-WAP), which uses water soluble cationic pillar[5]arene (WAP) as the host and a phenazine imidazole (G) as guest. The real-time fluorescence response did show efficient quenching of the supramolecular pseudorotaxane chemosensor (G-WAP) upon the addition of Ag+ and an obvious fluorescence color change of the supramolecular pseudorotaxane chemosensor (G-WAP) is observed upon the addition of Hg2+. Excellent sensitivity and selectivity toward the Hg2+ and Ag+ detection were verified in the presence of other competitive cations, and the detection limits of G-WAP for Ag+ is 1.2 × 10−8 M, for Hg2+ is 5.0 × 10−7 M. Consequently, this supramolecular pseudorotaxane chemosensor proved to be an efficient tool in the identification of mercury and silver ions in water.

Graphical abstract: A novel water soluble pillar[5]arene and phenazine derivative self-assembled pseudorotaxane sensor for the selective detection of Hg2+ and Ag+ with high selectivity and sensitivity

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Publication details

The article was received on 29 Jan 2018, accepted on 01 May 2018 and first published on 02 May 2018


Article type: Paper
DOI: 10.1039/C8NJ00508G
Citation: New J. Chem., 2018,42, 10148-10152
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    A novel water soluble pillar[5]arene and phenazine derivative self-assembled pseudorotaxane sensor for the selective detection of Hg2+ and Ag+ with high selectivity and sensitivity

    Y. Zhang, X. Chen, G. Liang, K. Zhong, Q. Lin, H. Yao and T. Wei, New J. Chem., 2018, 42, 10148
    DOI: 10.1039/C8NJ00508G

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