Electromagnetic Waves Propagate Well in InsulatingBiomaterials by Shengyong Xu in Medical & Surgical Ophthalmology Research
Manmade electrical circuits and chips are made of
solid materials cataloged as transistors, resistors, capacitors, inductors,
interconnects, etc., where electrons are the charge carriers running inside
conductors and semiconductors, characterized with terms such as electric
currents and voltages, and insulators separate conducting paths. In natural
biosystems, electrical communications are also widely observed. For instance,
when a brain is working, one may record complicated electrical voltage signals
from an array of electrodes attached to the brain. However, natural biosystems
are mainly made of soft materials such as protein, phosphorus membrane and
water-based fluid. In these systems, ions of Na+, Ca2+, K+, etc. are utilized as
the charge carriers instead of free electrons. How does the electrical
information propagate in biosystems? Whether it propagates via ion currents
[1-3], by electromechanical solitons [4], or by soliton-like electromagnetic
pulsed waves [5]? This remains an open argument to date.
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