semipermeable membrane


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semipermeable membrane

A substance which allows solvent molecules to pass through but not solute molecules.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.semipermeable membrane - a membrane (as a cell membrane) that allows some molecules to pass through but not others
cell membrane, cytomembrane, plasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; "all cells have a cell membrane"
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Osmosis is the movement of water through a semipermeable membrane. Cell membranes are semipermeable, controlling the movement of solutes (substances such as sodium, chloride and larger molecules like glucose and amino acids) and water.
Reverse osmosis (RO) had been a water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles from drinking water.
Porifera has developed a proprietary process for the osmotically driven purification of water or concentration of products through a semipermeable membrane without the use of heat or pressure.
What is the passage of a solvent from a less concentrated into a more concentrated solution through a semipermeable membrane called?
The SIRION Mega Reverse Osmosis system exerts about 150 to 250 psi of pressure to water and forces it through the pores of a semipermeable membrane that removes up to 97 percent of dissolved inorganics and more than 99 percent of large dissolved organics, colloids and particles.
Reverse osmosis has been a water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles from drinking water.
They placed the bacteria into four wells on their custom-designed sensor, covered by a semipermeable membrane that allows small molecules from the surrounding environment to diffuse through.
Reverse osmosis, a process that separates salt by forcing pressurized seawater through a semipermeable membrane, required substantially less energy than thermal plants to transform saltwater.
Shale with semipermeable membrane properties is present in the concentration gradient, which will produce corresponding chemical osmotic pressure.
Hemodialysis fluids are composed of a mixture containing water and a polyelectrolyte concentrate in a 34:1 proportion, and these solutions are used for cleaning up the semipermeable membrane within dialysis equipment (Vorbeck-Meister et al., 1999).
The Alexandria University process uses pervaporation--separating components of a mixture by passing it through a semipermeable membrane and evaporating the liquid--eliminating the need for electricity to pump water by relying on the sun and natural processes of evaporation.