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Human red blood cell membranes treated with 1,6-diphenyl-1,3,5-hexatriene (fluorescent probe for membrane viscosity) were exposed to 1 GHz (CW) RF at SARs of .6, 2.0, and 15.0 W/kg. No effects on membrane fluidity were reported with exposure if temperature was maintained. When temperature was elevated due to the MW exposure, a characteristic temperature dependent effect was observed. In a related study, multilamellar dimyristoylphosphatidylcholine vesicles were exposed to 1.0 GHz (CW) MW at SARs of 1, 5, 15, or 30 W/kg with temperature maintained at either 23.5 or 25.5 C (phase transition temperatures). Exposure did not result in any shift of the normal phase transition temperature. |