This Minireview gives an overview of strategies for engineering bioinspired self-assembled ion channels based on different fabrication processes such as supramolecular assembly, nanosystem-based fabrication, and polymer-based integration, showing great potential for various applications.
Highly efficient biological ion channels with sophisticated transport characteristics in living organisms have inspired the design of artificial channels that are functionally comparable to those of their natural counterparts and applicable on a much larger scale. To date, self-assembly offers a facile process for producing nanoconfined ion channels that exhibit smart ion transport properties, including ion selectivity, gating, and rectification, showing great potential for various applications. In this Minireview, we give an overview of strategies for engineering bioinspired self-assembled ion channels. We focus on emerging channel assemblies based on different fabrication processes such as supramolecular assembly, nanosystem-based fabrication, and polymer-based integration. The applications of these bioinspired channels, in exploration of physiological events, detection of molecules/ions, ion separation, and energy conversion, are concisely presented. Finally, the future developments and challenges of this booming research field are proposed.