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Ionic Coulomb Blockade and Resonant Conduction in Biological Ion Channels

2014/05/06 by I. Kh. Kaufman, Kaufman, I. Kh., P. V. E. McClintock +3
Biochemistry, Genetics and Molecular Biology · Chemistry · Neuroscience · #Biological Physics (physics.bio-ph) #Biomolecules (q-bio.BM) #Electrochemical Analysis and Applications #FOS: Biological sciences #FOS: Physical sciences #Ion channel regulation and function #Neuroscience and Neural Engineering

paper · pdf · doi:10.48550/arxiv.1405.1391

openalex publication_date 2014/05/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The conduction and selectivity of calcium/sodium ion channels are described in terms of ionic Coulomb blockade, a phenomenon based on charge discreteness and an electrostatic model of an ion channel. This novel approach provides a unified explanation of numerous observed and modelled conductance and selectivity phenomena, including the anomalous mole fraction effect and discrete conduction bands. Ionic Coulomb blockade and resonant conduction are similar to electronic Coulomb blockade and resonant tunnelling in quantum dots. The model is equally applicable to other nanopores.

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