Tunable Photonic Polyelectrolyte Colorimetric Sensing for Anions, Cations and Zwitterions

Authors

  • Wei Hong,

    1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China)
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  • Xiaobin Hu,

    Corresponding author
    1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China)
    • State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China).
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  • Binyuan Zhao,

    1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China)
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  • Fan Zhang,

    Corresponding author
    1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China)
    • State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China).
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  • Di Zhang

    Corresponding author
    1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China)
    • State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240 (PR China).
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Abstract

original image

Inverse-opal strong polyelectrolyte sensors, achieved by using a colloidal crystal templating method, respond sensitively and universally to various anions, cations, and zwitterions with brilliant structural colors that can even be observed by the naked eye. They are very attractive for a range of applications, such as ion detection, separation, ionic conduction, and catalysts.

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