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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
6 Pt 1
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pubmed:dateCreated |
2001-6-20
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pubmed:abstractText |
In the classical study of ion transport through charged membranes, Donnan potentials are used to approximate the difference between the applied electrostatic potential and the potential at the liquid/membrane interface. For very thin membranes (e.g., biological lipid bilayers), this discontinuous approximation of the potential is not sufficient. Here we derive a modification to the classic Donnan potential for ion transport through a biological ion channel embedded in a lipid bilayer. We also show how to derive the classic Donnan potential without the usual assumptions and estimate the amount of space charge at the liquid/membrane interface.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1539-3755
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
63
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
061902
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:11415140-Biophysics,
pubmed-meshheading:11415140-Chloride Channels,
pubmed-meshheading:11415140-Ion Channels,
pubmed-meshheading:11415140-Ion Transport,
pubmed-meshheading:11415140-Ions,
pubmed-meshheading:11415140-Lipid Bilayers,
pubmed-meshheading:11415140-Models, Statistical,
pubmed-meshheading:11415140-Models, Theoretical,
pubmed-meshheading:11415140-Potassium Channels,
pubmed-meshheading:11415140-Sodium Channels,
pubmed-meshheading:11415140-Static Electricity
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pubmed:year |
2001
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pubmed:articleTitle |
Modified Donnan potentials for ion transport through biological ion channels.
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pubmed:affiliation |
Department of Physiology and Biophysics, University of Miami School of Medicine, P.O. Box 016430, Miami, Florida 33101-6430, USA. dirkg@chroma.med.miami.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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