Energy Barrier for an Ion Crossing an Intra-Membrane Channel

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dc.creatorFinkelstein, Alexei V.
dc.creatorIvankov, Dmitry N.
dc.creatorDykhne, Alexander M.
dc.date2006-12-14
dc.date.accessioned2026-07-07T07:35:01Z
dc.date.available2026-07-07T07:35:01Z
dc.descriptionWe present a simple approximate analytical estimate for self-energy of a charge in the middle of cylindrical channel of a high permittivity epsilon_1 in a media of a low permittivity epsilon_2 (for the cases of infinitely long and comparatively short channels) and show that this estimate is in a good quantitative agreement with exact solution of Poisson equation. Further, using these estimates, we explain the observed a lower conductivity, caused by an increased the self-free-energy for ions, whose diameter is by ~1 angstrom less than that of the channel (as compared to ions, whose diameter is equal to that of the channel).
dc.description6 pages, 2 figures, 1 table, 6 references
dc.identifierhttps://arxiv.org/abs/physics/0612139
dc.identifierhttp://arxiv.org/abs/physics/0612139
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/119969
dc.subjectBiological Physics
dc.titleEnergy Barrier for an Ion Crossing an Intra-Membrane Channel
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