permeable membrane


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Related to permeable membrane: Partially permeable membrane

permeable membrane

[′pər·mē·ə·bəl ′mem‚brān]
(chemistry)
A thin sheet or membrane of material through which selected liquid or gas molecules or ions will pass, either through capillary pores in the membrane or by ion exchange; used in dialysis, electrodialysis, and reverse osmosis.
References in periodicals archive ?
Selectively Permeable Membrane Based Chemical/Biological Protective Field Duty Uniform -- Quoc Truong, Eugene Wilusz
A permeable membrane, such as Mypex, is best of all as the water gets through, but the light doesn't.
These channels are divided by a thin, permeable membrane lined on one side with human lung cells and on the other with tiny blood vessel or capillary cells that are bathed in fluid to simulate blood flow.
Their technique is based on the process of osmosis - the natural movement of water from a region with low solute concentration across a permeable membrane to a region with high concentration.
Preparing the site Remove all turf, cover the ground with a permeable membrane or black polythene and then gravel, to prevent weeds from growing.
Fix timbers around the edge, lay a permeable membrane over the area to suppress weeds and put down a 2in layer of gravel.
A further six will also be put forward for the work, which involves digging out half a metre of topsoil and putting down a permeable membrane before replacing it with clean soil.
The permeable membrane of the autoclave bags allows free flow of C[O.
Natick project engineer George Costas said that one of the most promising technologies for future protective garments is the selectively permeable membrane.
The barrier separating theater from dance is a permeable membrane, with bodies and ideas passing back and forth freely.
A permeable membrane separates the photoelectrochemical cell from the storage part of the device, which consists of a tin-sulfide electrode dipped in an alkaline sulfide solution.