Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China.
Department of Public Fundamental Courses, West Yunnan University of Applied Sciences, Dali 671000, Yunnan, P. R. China.
Analyst. 2021 Nov 8;146(22):6815-6821. doi: 10.1039/d1an01522b.
Solid-state nanochannels have attracted considerable attention for their similar ion transport properties to biological ion channels. The construction of porous ion channels with good stability at the submicro/micrometer scale is very beneficial to develop large-area ion channel devices. In this manuscript, based on thermal crosslinking of a small organic molecule containing triphenylamine and styrene groups, we construct a heterogeneous membrane with asymmetrical charge and wettability on cylindrical anodic aluminum oxide (AAO) channels ( ≈ 319 nm). This heterogeneous membrane has typical ion current rectification characteristics with a high rectification ratio of 36.9 and good stability. This work provides an effective strategy for the construction of submicrochannel heterogeneous membranes and also broadens the application range of bionic ion channels.
固态纳米通道因其具有类似于生物离子通道的离子输运特性而受到广泛关注。在亚微米/微米尺度上构建具有良好稳定性的多孔离子通道，对于开发大面积离子通道器件非常有益。在本文中，基于含有三苯胺和苯乙烯基团的小分子的热交联，我们在圆柱形阳极氧化铝（AAO）通道（ ≈ 319nm）上构建了具有不对称电荷和润湿性的异质膜。这种异质膜具有典型的离子电流整流特性，整流比高达 36.9，稳定性良好。这项工作为亚微米通道异质膜的构建提供了一种有效的策略，也拓宽了仿生离子通道的应用范围。
