Highly‐Efficient Ion Gating through Self‐Assembled Two‐Dimensional Photothermal Metal‐Organic Framework Membrane

Author:

Zhou Yuming12,Xiong Tianyi34,Lu Jiahao3,Yu Ping34ORCID,Jiang Yanan1ORCID,Xia Fan2ORCID,Mao Lanqun1ORCID

Affiliation:

1. College of Chemistry Beijing Normal University Beijing 100875 China

2. Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 China

3. Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

4. University of Chinese Academy of Sciences Beijing 100049 China

Abstract

AbstractBiological ion channels regulate the ion flow across cell membrane via opening or closing of the pores in response to various external stimuli. Replicating the function of high ion gating effects with artificial porous materials has been challenging. Herein, we report that the self‐assembled two‐dimensional metal‐organic framework (MOF) membrane can serve as an excellent nanofluidic platform for smart regulation of ion transport. The MOF membrane with good photothermal performance exhibits extremely high ion gating ratio (up to 104), which is among the highest values in MOF membrane nanochannels for light‐controlled ion gating reported so far. By repeatedly turning on and off the light, the nanofluidic device shows outstanding stability and reversibility that can be applied in the remote light‐switching system. This work may spark promising applications of MOF membrane with variety of stimuli responsive properties in ion sieving, biosensing, and energy conversion.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

General Medicine

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