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Related Experiment Video

Updated: Jul 5, 2026

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes
09:27

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

Published on: March 3, 2014

Neural stimulation and recording electrodes.

Stuart F Cogan1

  • 1EIC Laboratories Inc., Norwood, MA 02062, USA. scogan@eiclabs.com

Annual Review of Biomedical Engineering
|April 24, 2008
PubMed
Summary
This summary is machine-generated.

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Understanding electrode electrochemical mechanisms is crucial for neural prosthetics and treatments. This research reviews materials and techniques for safe and effective neural stimulation and recording.

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Electrochemistry

Background:

  • Neural stimulation and recording are foundational for advanced prostheses and therapies targeting neurological disorders.
  • Developing chronically implanted devices, especially those with microelectrode arrays, requires a deep understanding of electrode electrochemical behavior.
  • Current electrode materials like titanium nitride, platinum, and iridium oxide offer distinct advantages and limitations for neural applications.

Purpose of the Study:

  • To elucidate the electrochemical mechanisms governing neural stimulation and recording electrode performance.
  • To critically evaluate charge-balanced waveforms and potential excursion limits for reversible charge injection.
  • To present characterization techniques for assessing electrode properties relevant to in vivo and in vitro performance.

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Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats
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Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats
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Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats

Published on: June 22, 2017

Related Experiment Videos

Last Updated: Jul 5, 2026

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes
09:27

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

Published on: March 3, 2014

Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats
10:51

Chronic Transcranial Electrical Stimulation and Intracortical Recording in Rats

Published on: May 11, 2018

Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats
10:46

Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats

Published on: June 22, 2017

Main Methods:

  • Review of electrochemical mechanisms for charge injection (capacitive and Faradaic).
  • Analysis of electrode materials including titanium nitride, platinum, and iridium oxide.
  • Description of techniques for electrochemical property characterization.

Main Results:

  • Identified available materials supporting charge injection via capacitive and Faradaic mechanisms.
  • Critiqued criteria for reversible charge injection, including charge-balanced waveforms and potential limits.
  • Highlighted differences between in vitro and in vivo electrode responses.

Conclusions:

  • Optimizing electrode materials and electrochemical parameters is essential for safe and effective neural interface development.
  • Characterization techniques are vital for predicting and understanding electrode performance in chronic implants.
  • Further research into electrode-tissue interfaces will advance neural prosthetic and therapeutic technologies.