Malachite green derivative-functionalized single nanochannel: Light-and-pH dual-driven ionic gating

Liping Wen, Qian Liu, Jie Ma, Ye Tian, Cuihong Li, Zhishan Bo, Lei Jiang

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68 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)6193-6198
Number of pages6
JournalAdvanced Materials
Issue number46
Publication statusPublished - 4 Dec 2012
Externally publishedYes


  • biomimetics
  • ionic gates
  • nanochannels
  • switches

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