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On the cyclotron resonance model of ion transport
Author(s) -
Sandweiss Jack
Publication year - 1990
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.2250110210
Subject(s) - ion , ion cyclotron resonance , resonance (particle physics) , physics , fourier transform ion cyclotron resonance , cyclotron resonance , cyclotron , atomic physics , gyration , magnetic field , field (mathematics) , gyroradius , nuclear magnetic resonance , quantum mechanics , geometry , mathematics , pure mathematics
The cyclotron‐resonance model, which has been suggested as an explanation of a purported enhancement of transport of ions through the membranes of cells exposed to weak, lowfrequency‐modulated RF fields, is shown to be inconsistent with basic physical principles. Under the conditions of the model, in which the ions are presumed to circulate under the constraint of the earth's magnetic field, the radii of gyration of the ions would approximate 50 m and, thus, are much larger than the cells. Moreover, from general considerations, the collision‐damping time of such ions is expected to be less than 10 −10 s, much smaller than the times of the order of 10 −2 s, shown to be necessary if the conditions for low‐frequency resonance are to be satisfied.