Light and pH cooperative nanofluidic diode using a spiropyran- functionalized single nanochannel

Minghui Zhang, Xu Hou, Jingtao Wang, Ye Tian, Xia Fan, Jin Zhai, Lei Jiang

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148 Citations (Scopus)


An artificial nanofluidic diode system is prepared (see figure), mimicking the light-gated and pH-tunable ion channels that play an important role in life sciences. When UV light is off, the nanochannel is in the closed state, analogous to a resistance. Under UV light irradiation and at pH 7, the current flows from the tip to the base, analogous to a diode; at pH 3, the situation (and the diode) is reversed.

Original languageEnglish
Pages (from-to)2424-2428
Number of pages5
JournalAdvanced Materials
Issue number18
Publication statusPublished - 8 May 2012
Externally publishedYes


  • current rectification
  • ion channels
  • nanochannels
  • nanofluidic diodes

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