Millimeter wave bioeffects at 94 GHz on skeletal muscle contraction
Biomedical Wireless Technologies, Networks, and Sensing Systems(2013)
摘要
Many reports on the use of millimeter waves in clinical applications involve non-thermal bioeffects produced by frequencies as high as 77.7 GHz. In addition, there is the well-known thermal effect of intense skin heating used in non-lethal weapon systems operating at 94 GHz. We investigated the possibility of non-thermal bioeffects at 94GHz on skeletal muscle contraction. Using a custom-designed exposure system we measured contraction of flexor digitorum brevis, a fast-twitch muscle obtained from mouse toe, during millimeter wave exposures. Electric field magnitudes in excess of 2.6 kV/m were observed to cause a reproducible decrease in force production in the absence of measurable changes in temperature.
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关键词
biological effects of fields,muscle,skin,clinical applications,custom-designed exposure system,electric field magnitudes,fast-twitch muscle,flexor digitorum brevis,force production,frequency 77.7 ghz,frequency 94 ghz,millimeter wave bioeffects,millimeter wave exposure,mouse toe,nonlethal weapon systems,nonthermal bioeffects,skeletal muscle contraction,skin heating,thermal effect,94 ghz,finite-difference time-domain modeling,muscle fatigue,non-thermal effects
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