Gibbs-Donnan effect

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The Gibbs-Donnan effect (also known as the Donnan effect, Donnan law, or Gibbs-Donnan equilibrium) is a name for the behavior of charged particles near a semi-permeable membrane to sometimes fail to distribute evenly on either side of the membrane. [1] The usual cause is the presence of a different charged substance that is unable pass through the membrane and is thus creating an uneven electrical charge.[2] The Gibbs-Donnan effect can prevent sick cells' sodium pumps from functioning properly. [3]

It is named after physicists Josiah Willard Gibbs and Frederick G. Donnan.

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[edit] References

  1. ^ http://www.cartage.org.lb/en/themes/Reference/dictionary/Biologie/G/13.html, retrieved 28 August 2006
  2. ^ The Gibbs-Donnan Equilibrium..., D.C. Mikulecky, retrieved 28 August 2006
  3. ^ Gibbs-Donnan effect, Everything2.com, retrieved 28 August 2006