IFLYSIB   05383
INSTITUTO DE FISICA DE LIQUIDOS Y SISTEMAS BIOLOGICOS
Unidad Ejecutora - UE
artículos
Título:
Electrodynamics of Interactions in Electrolyte Media.Possible Consequences in Biological Functions".
Autor/es:
J.R. DE XAMMAR ORO; G. RUDERMAN; J.R. GRIGERA
Revista:
Biophysics (Nauka)
Referencias:
Año: 2006 vol. 52
Resumen:
Attention is drawn on the fact that electric charge interactions inside aqueous electrolyte solutions, such as physiological media, depends not only on the distance of the interacting charges but also on the frequency in which the are moving. This fact has important consequences for some biological processes, particular for kinetic ones. The treatment of charges screening, including the dynamical effects, shows that even above Debye´s length electrical interactions in physiological like systems is effective provided that charges move at frequencies higher than about 250MHz.  For each electrolyte solution it is possible to define a threshold frequency, the Maxwell’s frequency, that point the crossover between a conducting and dielectric regime inside the solution.