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Updated: May 15, 2025

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
Published on: February 23, 2017
Programmable cation migration in unipolar 2D ion channels via dynamic Debye length
Yi-Lu Zhang1, Shizhe Feng2, Yumei Tan1
1School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China. liuz@scu.edu.cn.
Abstract:
Programmable ion migration in artificial ion channels constructed from two-dimensional (2D) materials represents a significant advancement in the development of bioinspired materials and technologies. Here, we achieve programmable cation migration in unipolar 2D ion channels by tuning the Debye length. These unipolar channels are engineered in a graphene oxide (GO) membrane composed of parallel-stacked, negatively charged laminae. This work provides a strategy for controlled ion transport, offering insights for biomimetic iontronics, ion-based memory, and advanced sensing applications.
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