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Bioelectrodynamics
Bioelectrodynamics is a branch of biophysics and bioelectromagnetism which deals with rapidly
changing electric and magnetic fields in biological systems, i.e. high frequency endogenous electromagnetic phenomena in living cells. Unlike the events studied by the electrophysiology, the generating mechanism of bioelectrodynamic phenomenon is not connected with currents of ions and its frequency is typically much higher. Examples include vibrations of electrically polar intracellular structures and non-thermal emission of photons as a result of metabolic activity.
==Theories and Hypotheses==
Plenty of theoretical work was published on theories and hypotheses describing generation of electromagnetic field by living cells in very broad frequency range.〔Priel A, Tuszynski JA, Cantiello HF (2005). "Electrodynamic signaling by the dendritic cytoskeleton: toward an intracellular information processing model", ''Electromagnetic Biology and Medicine'', 24 (3).〕〔Cifra M (2012). (Electrodynamic eigenmodes in cellular morphology ) ''BioSystems'', 109 (3).〕〔Uesakaa M, Zhoua S-A (2006). "Bioelectrodynamics in living organisms", ''International Journal of Engineering Science'', 44 (1-2).〕 The most influential one was once probably the Fröhlich's hypothesis of coherence in biological systems introduced by Herbert Fröhlich in the late 1960s.〔GJ Hyland and Peter Rowlands (editors) ''Herbert Frohlich FRS: A Physicist Ahead of his Time.'' (University of Liverpool, 2006, 2nd edition 2008.) ISBN 978-0-906370-57-5〕 Despite the fact that experimental evidence for Fröhlich's hypothesis does not exist yet, numerical estimates indicate biological feasibility of at least Fröhlich's weak condensation.〔Reimers J et al. (2009). (Weak, strong, and coherent regimes of Fröhlich condensation and their applications to terahertz medicine and quantum consciousness ) ''PNAS'' 106 (11).〕
Recent theoretical considerations predict generation of radio frequency electromagnetic field in cells as a result of vibrations of electrically polar intracellular structures, e. g., microtubules.〔Pokorný J, Hašek J, Jelínek F (2005). (Electromagnetic field of microtubules: Effects on transfer of mass particles and electrons ) ''J. Biol. Phys.'' 31.〕 Emission in optical part of electromagnetic spectrum is usually attributed to reactive oxygen species (ROS).
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