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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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Single-cell Microinjection for Cell Communication Analysis
09:59

Single-cell Microinjection for Cell Communication Analysis

Published on: February 26, 2017

Electroanalytical eavesdropping on single cell communication.

Donghyuk Kim1, Secil Koseoglu, Benjamin M Manning

  • 1Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.

Analytical Chemistry
|July 20, 2011
PubMed
Summary
This summary is machine-generated.

This review covers single cell exocytosis measurement using microelectrodes. It details the history, instrumentation, cell types, and key insights gained from this technique.

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Transcriptome Analysis of Single Cells
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Area of Science:

  • Biophysical techniques
  • Cellular biology
  • Neuroscience

Background:

  • Exocytosis is a fundamental cellular process involving the release of molecules from a cell.
  • Accurate measurement of exocytosis at the single-cell level is crucial for understanding cellular function.
  • Microelectrode techniques offer high temporal and spatial resolution for studying exocytosis.

Purpose of the Study:

  • To provide a comprehensive review of single-cell exocytosis measurement using microelectrodes.
  • To cover the historical development of this measurement technique.
  • To discuss the fundamental insights gained into cellular processes.

Main Methods:

  • Review of literature on microelectrode-based measurements of single-cell exocytosis.
  • Discussion of basic instrumentation required for electrochemical detection.
  • Analysis of various cell types investigated using these methods.

Main Results:

  • Detailed overview of the evolution of microelectrode technology for exocytosis studies.
  • Summary of key parameters measurable, such as release kinetics and quantal content.
  • Identification of diverse cell types amenable to this analysis, including neurons and endocrine cells.

Conclusions:

  • Microelectrode measurements provide invaluable data on single-cell exocytosis.
  • The technique has significantly advanced our understanding of cellular secretion.
  • Future directions may involve further miniaturization and integration with other analytical methods.