Advanced Materials

Malachite Green Derivative–Functionalized Single Nanochannel: Light-and-pH Dual-Driven Ionic Gating

Authors

  • Liping Wen,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Qian Liu,

    1. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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  • Jie Ma,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Ye Tian,

    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Cuihong Li,

    1. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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  • Zhishan Bo,

    Corresponding author
    1. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
    • College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
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  • Lei Jiang

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
    • Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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Abstract

A highly efficient and perfectly reversible ionic gate that can be activated by pH or UV light is demonstrated. Switching between the OFF state and the ON state is mainly dependent on the surface charge transition brought about by a malachite green derivative attached to the interior surface of an ion track-etched conical nanochannel, which makes it suitable for confined spaces. Applications in electronics, actuators, and biosensors can be foreseen.

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