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Ion channel characterization using single cell impedance spectroscopy

Arum Han1, A Bruno Frazier

  • 1Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA. arum.han@ece.tamu.edu

Lab on a Chip
|October 27, 2006
PubMed

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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...