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Free-Solvent Model of Osmotic Pressure Revisited: Application to Concentrated IgG Solution under Physiological

Yousef1, Datta, Rodgers

  • 1The Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, Iowa, 52242

Journal of Colloid and Interface Science
|February 19, 1998
PubMed

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Osmosis is the movement of free water molecules through a semipermeable membrane.  The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
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