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An ion pump (also referred to as a sputter ion pump) is a type of vacuum pump which operates by sputtering a metal getter. Under ideal conditions, ion pumps are capable of reaching pressures as low as 10 −11 mbar. [ 1 ]
The image titled Ion pump head jpeg is a NEG cartridge possibly from SAES Getters. It has a different pumping mechanism as it uses Non Evaporable Getter, activated with heat. This type of pump does not pump CH4 or noble gases. It should be on a different page. I have many diagrams and images of cells and modules relating to ion pumps.
Getter pump or sorption pump In laboratory vacuum systems, the bulk NEG getter is often held in a separate vessel with its own heater, attached to the vacuum system by a valve, so that it can be replaced or renewed when saturated. [8] Ion getter pump Uses a high voltage electrode to ionize the gas molecules and drive them into the getter surface.
In contrast to ion pumps, ion channels do not build chemical gradients but rather dissipate them in order to perform work or send a signal. Probably the most familiar and best studied example is the voltage-gated Na + channel, which allows conduction of an action potential along neurons. All ion pumps have some sort of trigger or “gating ...
Momentum transfer pumps, also called molecular pumps, use high-speed jets of dense fluid or high-speed rotating blades to knock gas molecules out of the chamber. Entrapment pumps capture gases in a solid or adsorbed state; this includes cryopumps, getters, and ion pumps. [14] [15] Positive displacement pumps are the most effective for low vacuums.
Diffusion vs. Transport. In biology, an ion transporter is a transmembrane protein that moves ions (or other small molecules) across a biological membrane to accomplish many different biological functions, including cellular communication, maintaining homeostasis, energy production, etc. [1] There are different types of transporters including pumps, uniporters, antiporters, and symporters.
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Integral channel proteins such as the sodium-potassium pump actively maintain the electrochemical gradient through movement of sodium and potassium ions. Voltage-gated ion channels in neurons allow for transient changes in membrane potential, giving way for signal transduction through action potentials and/or neurotransmitter release.
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