Electric Field-Controlled Ion Transport In Tio? Nanochannel
By Li, Dan; Jing, Wenheng; Li, Shuaiqiang; Shen, Hao & Xing, Weihong
Published in ACS Applied Materials \& Interfaces
NULL
2015
Abstract
On the basis of biological ion channels, we constructed Tio? membranes with rigid channels of 2.3 nm to mimic biomembranes with flexible channels; an external electric field was employed to regulate ion transport in the confined channels at a high ionic strength in the absence of electrical double layer overlap. Results show that transport rates for both Na+ and Mg2+ were decreased irrespective of the direction of the electric field. Furthermore, a voltage-gated selective ion channel was formed, the Mg2+ channel closed at
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