Cooperative and Inhibitory Ion Transport in Functionalized Angstrom-Scale Two-Dimensional Channels

TL;DR

This study demonstrates how angstrom-scale acetate-functionalized MoS2 channels can mimic biological ion channels by exhibiting cooperative and inhibitory ion transport behaviors, advancing understanding of molecular mechanisms.

Contribution

It reveals the molecular origin of ion gating and interplay in artificial angstrom-scale channels, a feature rarely achieved in previous designs.

Findings

Demonstration of cooperative ion transport behavior

Observation of inhibitory ion transport mechanisms

Enhanced understanding of ion gating in artificial channels

Abstract

Significant success has been achieved in fabricating angstrom-scale artificial solid ionic channels aiming to replicate the biological ion channels (BICs).Besides high selectivity, BICs also exhibit sophisticated ion gating and interplay. However, such behavior and functionality are seldomly recreated in the artificial counterparts due to the insufficient understanding of the molecular origin. Here we report cooperative and inhibitory ion transport in angstrom-scale acetate functionalized MoS2 two dimensional channels.