Effects of nanosecond pulsed electromagnetic field on mitochondrial membrane potential

2008 IEEE 35th International Conference on Plasma Science Pub Date : 2016-06-19 DOI:10.1109/PLASMA.2016.7534132

X. Wenjun, Y. Xueling, C. Jingliang

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Abstract

In this paper, the effects of nanosecond pulsed electromagnetic field (NPEMF) on mitochondrial membrane potential were studied. The pulsed electromagnetic field was induced by a pulsed square wave with adjustable frequency of 0∼100Hz. The rise time was less than 10ns and the duration time was 100ns. The testing amplitude of NPEMF was from 0.10mT to 1.30mT, and the frequency was 5Hz, 10 Hz, 30 Hz, 50Hz respectively. It was applied on human prostate cancer cells (PC3) under 23 °C experiment temperature and 2 hours exposed time. When the frequency was 30Hz, the experimental results showed the mitochondrial membrane potential value decreased after irradiation compared to the control group. However the relationship between mitochondrial membrane potential and NPEMF is nonlinear. T he potential was smallest when the amplitude of NPEMF was 0.44mT. When the amplitude of NPEMF is constant, the mitochondrial membrane potential increased with the increase of frequency. The value of exposed group was larger than control group 2(23 C, no irradiation). It showed that the electromagnetic field could reduce the damage caused by low temperature.

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纳秒脉冲电磁场对线粒体膜电位的影响

研究了纳秒脉冲电磁场(NPEMF)对线粒体膜电位的影响。脉冲电磁场由频率为0 ~ 100Hz的脉冲方波产生。上升时间小于10ns，持续时间为100ns。NPEMF的测试幅值为0.10 ~ 1.30mT，频率分别为5Hz、10 Hz、30 Hz、50Hz。将其作用于人前列腺癌细胞(PC3)，实验温度23℃，暴露时间2小时。当频率为30Hz时，实验结果显示辐照后线粒体膜电位值较对照组降低。然而，线粒体膜电位与NPEMF之间的关系是非线性的。当NPEMF振幅为0.44mT时，电位最小。当NPEMF振幅一定时，线粒体膜电位随频率的增加而增加。暴露组高于对照组2(23℃，未辐照)。结果表明，电磁场可以降低低温对材料的损伤。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2008 IEEE 35th International Conference on Plasma Science

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