Membrane
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A membrane is a thin, typically planar structure or material that separates two environments. Because it sits between environments or phases and has a finite volume, it can be referred to as an interphase rather than an interface. Membranes selectively control mass transport between the phases or environments.
Biological membranes include:
- plasma membrane and intracellular membranes
- mucous membrane
Artificial membranes are used in:
- Reverse osmosis
- Filtration (Microfiltration, Ultrafiltration)
- Pervaporation
- Dialysis
- Electrodialysis
- Emulsion liquid membranes
- Membrane-based solvent extraction
- Membrane reactors
- Gas permeation
- supported liquid membranes