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Dynamic characteristics of membrane ions in multifield configurations of low‐frequency electromagnetic radiation
Author(s) -
McLeod B. R.,
Liboff Abraham R.
Publication year - 1986
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.2250070208
Subject(s) - ion , physics , electric field , extremely low frequency , magnetic field , dielectric , electromagnetic field , electromagnetic radiation , resonance (particle physics) , cyclotron resonance , atomic physics , field (mathematics) , ion cyclotron resonance , nuclear magnetic resonance , charged particle , cyclotron , optics , quantum mechanics , mathematics , pure mathematics
Abstract We seek to extend the recent suggestion that classical cyclotron resonance of biologically important ions is implicated in weak electromagnetic field‐cell interactions. The motion of charged particles in a constant magnetic field and periodic electric field is examined under the simplifying assumption of no damping. Each of the nine terms of the relative dielectric tensor is found to have a dependence on functions that include the factor (ω 2 – ω) −1 , where ω B is the gyrofrequency. We also find a plasmalike decomposition of the electric field into oppositely rotating components that could conceivably act to drive oppositely charged ions in the same direction through helical membrane channels. For weak low‐frequency magnetic fields, an additional feature arises, namely, periodic reinforcement of the resonance condition with intervals of the order of tens of msec for biological ions such as Li + , Na + , and K + .