Molecular Ion Channels; Electrodiffusion in R3

Abstract:

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Ion transport across the membrane of the living cell (molecular ion channels) is a critical process, e.g., the triggering of nerve cells and heart muscle cells is coupled with mechanisms controlled by ion diffusion (electrodiffusion). Although the process is described by the century old Nernst- Planck-Poisson system of equations, it is not well understood and a clear understanding of how the interaction between channel and ions affects the flow is still missing. We present a three-dimensional model of the molecular channel. An appropriate quantitative description of the ion transport process allows proper explanation of molecule channel interactions (e.g. the ions flow for a given concentration gradient should depend on the potential and other parameters describing the interaction, i.e. asymmetric transport). We show the simulation of the stationary electrodiffusion in the ion channel showing radial symmetry.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Edited by:

Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado

Pages:

1469-1474

DOI:

10.4028/www.scientific.net/DDF.297-301.1469

Citation:

B. Bożek et al., "Molecular Ion Channels; Electrodiffusion in R3", Defect and Diffusion Forum, Vols. 297-301, pp. 1469-1474, 2010

Online since:

April 2010

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Price:

$35.00

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