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Related Concept Videos

Non-gated Ion Channels

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.

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Related Experiment Video

Updated: May 10, 2026

Writing and Low-Temperature Characterization of Oxide Nanostructures

Writing and Low-Temperature Characterization of Oxide Nanostructures

Published on: July 18, 2014

All-Oxide Metasurfaces Formed by Synchronized Local Ionic Gating.

Hyeon Han¹, Arpit Sharma¹, Jiho Yoon¹

¹Nano Systems from Ions, Spins, and Electrons (NISE), Max Planck Institute of Microstructure Physics, 06120, Halle (Saale), Germany.

Advanced Materials (Deerfield Beach, Fla.)

|May 13, 2024

Summary

This summary is machine-generated.

Ionic gating of oxide thin films can now uniformly control large device arrays. A conducting underlayer ensures synchronized manipulation of electrical, magnetic, and optical properties for novel metasurfaces.

Keywords:

ionic gating metasurfaces synchronized local ionic gating thin films

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Last Updated: May 10, 2026

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Published on: July 18, 2014

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Ionic gating is a method for tuning thin film properties.
Traditional three-terminal configurations show non-uniform gating in large device arrays.
This non-uniformity hinders the simultaneous control of multiple devices.

Purpose of the Study:

To address the non-uniform ionic gating response in large thin-film device arrays.
To enable synchronized manipulation of electrical, magnetic, and optical properties.
To demonstrate the formation of designer metasurfaces with uniform and coherent responses.

Main Methods:

Investigating the electrokinetics of ionic gating in thin films.
Employing a thin conducting underlayer to create a uniform charge potential.
Fabricating SrCoO2.5 thin films for metasurface creation.

Main Results:

A uniform charge potential circumvents non-uniform gating responses in device arrays.
Synchronized local ionic gating allows simultaneous property manipulation.
Designer metasurfaces exhibited anomalous optical reflection due to coherent device response.

Conclusions:

The use of a conducting underlayer enables uniform ionic gating across large device arrays.
This technique allows for the creation of novel metasurfaces with tunable properties.
Findings offer insights into ionic gating electrokinetics and broad applications.