Permeation
Permeation
Permeation (pronunciation: /pɜːrmiːˈeɪʃən/) is a process that involves the penetration of a substance through a solid. It is often used in the context of medicine, pharmacology, and biology to describe the movement of drugs or other substances across cell membranes.
Etymology
The term "permeation" originates from the Latin word "permeare", which means "to pass through".
Definition
In the field of medicine and pharmacology, permeation refers to the ability of a substance, such as a drug, to penetrate into and pass through a membrane or material. This process is crucial in drug delivery, as it determines the rate at which a drug can reach its target site in the body.
Related Terms
- Diffusion: The process by which molecules spread from areas of high concentration, to areas of low concentration.
- Osmosis: The movement of solvent molecules through a semipermeable membrane into a region of higher solute concentration.
- Absorption: The process by which one substance becomes incorporated into another.
- Bioavailability: The proportion of a drug or other substance which enters the circulation when introduced into the body and so is able to have an active effect.
See Also
External links
- Medical encyclopedia article on Permeation
- Wikipedia's article - Permeation
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