Abstract
Surface properties differ significantly from bulk properties. At charged membrane (or channel) surfaces the surface concentrations and surface potentials of ions differ from the bulk values, but the combined electrochemical potentials are the same. Any increase in surface concentration is exactly balanced by the decrease in electrical potential, so ions at the surface are in equilibrium with those in the bulk. Since ion transport is driven by electrochemical potentials, it is clear that the driving forces for the ions are the same at the surface as in the bulk solution.
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References
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© 1987 Springer Science+Business Media New York
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Blank, M. (1987). Ionic Processes at Membrane Surfaces: The Role of Electrical Double Layers in Electrically Stimulated Ion Transport. In: Blank, M., Findl, E. (eds) Mechanistic Approaches to Interactions of Electric and Electromagnetic Fields with Living Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1968-7_1
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DOI: https://doi.org/10.1007/978-1-4899-1968-7_1
Publisher Name: Springer, Boston, MA
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