A Tunable Ionic Diode Based on a Biomimetic Structure‐Tailorable Nanochannel

A tunable ionic diode is presented that is based on biomimetic structure‐tailorable nanochannels, with precise ion‐transport characteristics from ohmic behavior to bidirectional rectification as well as gating properties. The forward/reverse directions of the ionic diode and the degree of rectificat...

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Published inAngewandte Chemie International Edition Vol. 56; no. 28; pp. 8168 - 8172
Main Authors Xiao, Kai, Chen, Lu, Zhang, Zhen, Xie, Ganhua, Li, Pei, Kong, Xiang‐Yu, Wen, Liping, Jiang, Lei
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 03.07.2017
EditionInternational ed. in English
Subjects
Biomimetics
Gating
ion rectification
ion selectivity
ionic diodes
nanochannels
nanopores
Surface charge
ion selectivity
nanopores
ion rectification
ionic diodes
nanochannels
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Summary:A tunable ionic diode is presented that is based on biomimetic structure‐tailorable nanochannels, with precise ion‐transport characteristics from ohmic behavior to bidirectional rectification as well as gating properties. The forward/reverse directions of the ionic diode and the degree of rectification can be well‐regulated by combining the patterned surface charge and the sophisticated structure. This system creates an ideal platform for precise transportation of ions and molecules, and potential applications in analytical sciences are anticipated. A biomimetic structure‐tailorable nanochannel is presented that can realize the precise ions transport characteristics as ionic rectification and ionic gating. Theoretical simulation based on PNP equations verified this phenomenon well. This system creates an ideal experimental and theoretical platform for precise transportation of ions and molecules, which has potential applications in analytical sciences.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201704137