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We introduce a self-consistent multi-species kinetic theory based on the structure of the narrow voltage-gated potassium channel. Transition rates depend on a complete energy spectrum with contributions including the dehydration amongst species, interaction with the dipolar charge of the filter and, bulk solution properties. It displays high selectivity between species coexisting with fast conductivity,...
Ionic Coulomb blockade is an electrostatic phenomenon recently discovered in low-capacitance ion channels/ nanopores. Depending on the fixed charge that is present, Coulomb blockade strongly and selectively influences the ease with which a given type of ion can permeate the pore. The phenomenon arises from the discreteness of the charge-carriers and it manifests itself strongly for divalent ions (e...
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