voltage clamp


voltage clamp
A technique in electrophysiology, in which a microelectrode is inserted into a cell, and current injected through the electrode so as to hold the cell\'s membrane potential at some predefined level. The technique can be used with separate electrodes for voltage-sensing and current-passing; for small cells, the same electrode can be used for both. Voltage clamp is a powerful technique for the study of ion channels. See patch clamp.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

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  • Voltage clamp — The voltage clamp is used by electrophysiologists to measure the ion currents across a neuronal membrane while holding the membrane voltage at a set level. Neuronal membranes contain many different kinds of ion channels, some of which are voltage …   Wikipedia

  • voltage clamp — …   Useful english dictionary

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  • Patch clamp — The patch clamp technique is a laboratory technique in electrophysiology that allows the study of single or multiple ion channels in cells. The technique can be applied to a wide variety of cells but is especially useful in the study of excitable …   Wikipedia

  • Patch-Clamp — Ableitung einer Nervenzelle aus dem Hippocampus. Die Pipette wurde im Foto nachträglich blau eingefärbt. Die Patch Clamp Technik (engl. patch clamp technique) ist eine Messmethode in der Elektrophysiologie, mit der sich der Strom durch einzelne… …   Deutsch Wikipedia

  • Patch-Clamp-Verfahren — Patch Clamp Ableitung einer Nervenzelle aus dem Hippocampus. Die Pipette wurde im Foto nachträglich blau eingefärbt. Die Patch Clamp Technik (engl. patch clamp technique) ist eine Messmethode in der Elektrophysiologie, mit der sich der Strom… …   Deutsch Wikipedia


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