The Effects of Low Power Microwaves at 500MHz and 900MHz on Yeast Cells Growth
In the last few decades,the use of microwave radiation has greatly increased in radar and communication systems,food-processing technology and medical field.Development of consumer and medical microwave devices for clinical diagnosis and therapy has also prompted widespread interest and stimulated much research into the mechanisms of interaction between microwave radiation and living matter.Two types of effects can be ascribed to microwaves,i.e.,thermal and non-thermal.Non-thermal biological effects are measurable changes in biological systems that may or may not be associated with adverse health effects.It was shown that low power microwaves can affect enzymes activities.Little is known about the molecular mechanisms involved in putative non-thermal effects.One hypothesis is that low power microwave radiation can induce dipole oscillations in a proteins active site and thus,can alter its function.This study evaluates the effect of low power microwave radiation on the proliferation rate of yeast Saccharomyces cerevisiae strains type II,which were exposed to the microwaves at the frequencies of 500MHz and 900MHz and the selected powers of 0 dBm,10dBm,-10dBm,13dBm,-13dBm,17dBm and-17dBm using the Transverse Electro-Magnetic(TEM)cell.The average specific absorption rate(SAR)for a single cell was 0.12W/kg.SAR was calculated by averaging the individual parameters of the cell components in accordance with their volume fraction in live cells.A comparative analysis of changes in the proliferation rate of the irradiated vs.non-radiated yeast cells was performed for the selected frequencies and powers,with the results being presented and discussed.
Hamad S.Alsuhaim Vuk Vojisavljevic Elena Pirogova
School of Electrical and Computer Engineering Royal Melbourne Institute of Technology(RMIT)Universit School of Electrical and Computer Engineering Royal Melbourne Institute of Technology(RMIT)Universit
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
667-670
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）