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Related Concept Videos

Patch Clamp01:18

Patch Clamp

Many fundamental cell functions such as muscle contraction and nerve transmission rely on the electrical signals produced by the movement of positively and negatively charged ions across the cell membrane. One competent method to record current flowing across the whole cell or single ion channel is the patch-clamp technique.
In this method, a glass micropipette containing electrolyte solution is tightly sealed against a small portion of the cell membrane. As a result, a patch of the cell...

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One-channel Cell-attached Patch-clamp Recording
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The patch clamp technique: principles and technical considerations.

Bruce G Kornreich1

  • 1Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.

Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology
|August 11, 2007
PubMed
Summary

Patch clamp techniques enable high-fidelity measurement of ionic currents, advancing the study of ion channels in excitable tissues. This method improves understanding and management of cardiac diseases.

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Last Updated: Jul 13, 2026

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Area of Science:

  • Cardiovascular Physiology
  • Electrophysiology
  • Molecular Biology

Background:

  • Excitable tissues rely on ion channel function for physiological and pathophysiological processes.
  • Understanding cardiac ionic currents is crucial for diagnosing and treating heart conditions.
  • Patch clamp techniques provide high-fidelity measurements of small-scale ionic currents.

Purpose of the Study:

  • To review the fundamental principles of patch clamp techniques.
  • To summarize the application of patch clamp recordings to cardiac ionic currents.
  • To highlight key considerations in cardiac myocyte isolation, electrode fabrication, and voltage clamp.

Main Methods:

  • The review outlines the principles of patch clamp, focusing on the gigaohm seal formation.
  • It discusses the properties of biological membranes and ion channels relevant to patch clamp.
  • The application to recording cardiac ionic currents is detailed, including specific experimental considerations.

Main Results:

  • Patch clamp techniques have significantly enhanced the understanding of ion channel roles in cardiac physiology and disease.
  • The method allows for precise measurement of ionic currents, aiding in diagnosis, treatment, and prognosis of cardiac conditions.
  • This review synthesizes foundational knowledge and practical aspects of applying patch clamp to cardiac electrophysiology.

Conclusions:

  • Patch clamp technology has revolutionized the study of ion channels in excitable tissues, particularly in cardiology.
  • The technique's application provides critical insights into cardiac electrophysiology and disease mechanisms.
  • Further understanding of patch clamp methodology, including myocyte isolation and voltage clamp, is essential for advancing cardiac research.