A Bioinspired Multifunctional Heterogeneous Membrane with Ultrahigh Ionic Rectification and Highly Efficient Selective Ionic Gating.

Zhang, Zhen; Kong, Xiang-Yu; Xiao, Kai; Xie, Ganhua; Liu, Qian; Tian, Ye; Zhang, Huacheng; Ma, Jie et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A bioinspired multifunctional heterogeneous membrane composed of a block copolymer (PS-b-P4VP) membrane and a porous anodic alumina membrane is fabricated. The ionic rectification is so strong that the maximum ratio is ≈489, and the chemical actuation of the anion or cation gate from the "OFF" to the "ON" state promotes a 98.5% increase in the channel conductance.

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