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Electrodes: Overview

Electrodes: Overview

Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and potential. One fundamental component is electrodes, conductive materials that enable electron transfer reactions at their surfaces.
There are two main types of electrodes in electrochemical cells. The first type, known as the working or indicator electrode, has a potential that is sensitive to the analyte's concentration and reacts to changes in the...

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Updated: Jun 5, 2026

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

Published on: March 3, 2014

Semiconducting electrodes for neural interfacing: a review.

Arman Ahnood¹, Andre Chambers², Amy Gelmi³

¹School of Engineering, RMIT University, VIC 3000, Australia.

Chemical Society Reviews

|February 3, 2023

Summary

This summary is machine-generated.

Semiconducting electrodes offer advanced neural interfacing, enabling precise electrical, optical, and chemical sensing and modulation. These novel materials surpass traditional metallic electrodes for neural applications.

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Area of Science:

Neuroscience
Materials Science
Biomedical Engineering

Background:

Electronic technology has revolutionized medicine and biology by enabling direct neural tissue interfaces.
Implantable devices like deep brain stimulators and cochlear implants treat intractable conditions.
Neural recording and stimulation electrodes aid in understanding nervous system complexity.

Purpose of the Study:

To review emerging semiconducting electrodes for neural interfacing.
To explore their capabilities in electrical, optical, and chemical sensing and modulation.
To contrast their performance and applications with conventional metallic electrodes.

Main Methods:

Review of recent advances in semiconducting materials for neural interfaces.
Discussion of electrical, optical, and chemical sensing and modulation modalities.
Comparative analysis of semiconducting versus metallic electrodes.

Main Results:

Semiconducting materials enable novel devices and structures for effective neural interfacing.
These materials offer high spatial and temporal precision in sensing and modulation.
Unique electrochemical and photo-electrochemical attributes advance electrical neural interfacing.

Conclusions:

Semiconducting electrodes represent a significant advancement in neural interfacing technology.
They open new avenues for precise electrical, optical, and chemical neural modulation and sensing.
Their unique properties offer advantages over traditional metallic electrodes in research and treatment.