voltage gradient

См. также в других словарях:

• voltage gradient — Literally, the electric field in a region, defined as the potential difference between two points divided by the distance between them. Used more loosely, the potential difference across a plasma membrane …   Dictionary of molecular biology

• Voltage-gated ion channel — Voltage gated ion channels are a class of transmembrane ion channels that are activated by changes in electrical potential difference near the channel; these types of ion channels are especially critical in neurons, but are common in many types… …   Wikipedia

• Voltage-gated proton channel — Voltage gated proton channels are ion channels that have the unique property of opening with depolarization, but in a strongly pH sensitive manner [Citation last1=Cherny first1=V.V. last2=Markin first2=V.S. last3=DeCoursey first3=T.E. publication …   Wikipedia

• gradient — Rate of change of temperature, pressure, magnetic field, or other variable as a function of distance, time, etc. atrioventricular g. the diastolic …   Medical dictionary

• High Voltage Isolation and Ground Potential Rise — This article outlines the principles of High Voltage Isolation (HVI) and Ground Potential Rise (GPR). Most often questions of concern arise to anyone associated with the use of any communication signal (analog or digital) via a metallic or fiber… …   Wikipedia

• Sky voltage — refers to an electrostatic voltage gradient that is present in the free air of the atmosphere, and which can have a different voltage potential relative to the surface of the planet.Tall insulated metallic objects can absorb these voltage… …   Wikipedia

• Electrochemical gradient — An electrochemical gradient is a spatial variation of both electrical potential and chemical concentration across a membrane; that is, a combination of the membrane potential (delta psi) and the pH gradient (delta pH). Both components are often… …   Wikipedia

• Temperature gradient gel electrophoresis — (TGGE) and Denaturing Gradient Gel Electrophoresis (DGGE) are forms of electrophoresis which use either a temperature or chemical gradient to denature the sample as it moves across an acrylamide gel. TGGE and DGGE can be applied to nucleic acids… …   Wikipedia

• Stray voltage — is a term commonly used throughout the electric utility industry to describe when infrastructure devices, such as lamp posts, manholes, gratings and junction boxes become unintentionally charged with electricity. The cause of this unintended… …   Wikipedia

• Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia

• Ion channel — Not to be confused with: Ion Television or Ion implantation. Schematic diagram of an ion channel. 1 channel domains (typically four per channel), 2 outer vestibule, 3 selectivity filter, 4 diameter of selectivity filter, 5 phosphorylation site, 6 …   Wikipedia