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强脉冲电场致细胞膜电穿孔的实验研究

  • 肖华娟 ,
  • 严萍 ,
  • 牟群
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  • 1. 中国科学院电工研究所 北京 100080;
    2. 中国科学院研究生院 北京 100049

收稿日期: 2004-03-18

  修回日期: 2004-09-15

  网络出版日期: 2005-07-15

基金资助

国家自然科学基金项目 (50447007)资助

The Experimental Study of Electroporation of Cell Membrane Induced by Pulsed Electric Field of High Intensity

  • XIAO Hua-Juan ,
  • YAN Ping ,
  • MU Qun
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  • 1. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Received date: 2004-03-18

  Revised date: 2004-09-15

  Online published: 2005-07-15

摘要

采用肝癌细胞HePG2作为靶细胞,罗丹明偶联葡聚糖为荧光探针,荧光分光光度计作为检测设备,试验研究细胞膜电穿孔与电脉冲参数之间的关系.试验中发现随着电场强度或脉冲宽度的增加,样品荧光强度增加,细胞膜穿孔率相应增强;同时发现细胞膜电穿孔效应具有累积效应

本文引用格式

肖华娟 , 严萍 , 牟群 . 强脉冲电场致细胞膜电穿孔的实验研究[J]. 中国科学院大学学报, 2005 , 22(4) : 462 -466 . DOI: 10.7523/j.issn.2095-6134.2005.4.010

Abstract

In this paper, cell membrane electroporation induced by pulsed electric field is studied by using liver cancer cells as target cells, Rhodamine Bisothiocyanate-Dextran as fluorescent probes and fluorescence spectrophotometer as measure equipment. The experiments have shown that when the pulse intensity or pulse width increases, the fluorescent intensity will increase accordingly, so will the rate of electroporation of cell membranes. Also we find that electroporation of cell membrane presents memory effects.

参考文献

[1] James C Weaver. Electroporation in cells and tissues. IEEE Trans on Plasma Science, 2000,28 (1) :24~33

[2] Wang HM, Wang Z. Mechanism and application of cell electroporation and electrofusion. Prog. Biochem. Biophys. 1994,21 (4) :322~326 (in Chinese)

[3] Weaver J C. Electroporationin cells and tissues :a biophysical phenonmenon due to electromagmetic fields. Radio Science,1995,30 (1) :205

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[5] Tadej Kotnik, Damijan Miklavcic. Analytical description of transmembrane voltage induced by electric fields on spheroidal cells. Biophysical Journal,2000,79 :670~679

[6] Yao XL, Chen JL. The non2thermal effects of pulsed current electromagnetic fields on bio2membrane. Advanced Technology Electrical Engineering and Energy,2003,22 (2) :76~79 (in Chinese with English abstract)

[7] Liu CJ, Wang BY. Mechanismof specific effects of transient electromagnetic pulses on cell model. J. Biomed. Eng. 1998,15 (3) :294~297 (in Chinese with English abstract)

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