Journal
JOURNAL OF BIOLOGICAL PHYSICS
Volume 29, Issue 4, Pages 429-446Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1027309113522
Keywords
Brownian dynamics; continuum theories; ion channels; molecular dynamics; permeation models
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We review the basic physics involved in transport of ions across membrane channels in cells. Electrochemical forces that control the diffusion of ions are discussed both from microscopic and macroscopic perspectives. A case is made for use of Brownian dynamics as the minimal phenomenological model that provides a bridge between experiments and more fundamental theoretical approaches. Application of Brownian and molecular dynamics methods to channels with known molecular structures is discussed.
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