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Effect of different low electric field conditions on the dielectric properties of Ehrlich tumor.

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Affiliations

  • 1. Bio-Medical Physics Department, Medical Research Institute, Alexandria University, Egypt.
      Authors
    • Shawki MM 1
    (1 author)

ORCIDs linked to this article

Electromagnetic Biology and Medicine, 01 Mar 2011, 30(1):1-13
https://doi.org/10.3109/15368378.2011.566771 PMID: 21554098 

Abstract 

Studies of low electric fields (LEFs) effects on the permeability of the cell membrane are of great interest in molecular medicine. Electroendocytosis is a novel technique depends on using LEFs to incorporate macromolecules as anticancer drugs or genes into the cells. There are wide debates about the optimum electric conditions for electroendocytosis. In this article, Ehrlich tumor tissues were exposed to different LEFs voltages and frequencies in vitro. Dielectric properties before and after the exposure were determined. The results indicated that the exposed groups have significant high permittivity and conductivity compared to unexposed group, as well as having significant low impedance. The results indicated that dielectric measurements can be used to indicate the efficiency of electroendocytosis that as permittivity and conductivity of cell membranes increase, more molecules can passed into the cells. It was also indicated that, as the pulse amplitude increases, the LEFs influence increases, while changing pulse frequency has no obvious effect on dielectric properties of Ehrlich tumor.

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Read article at publisher's site: https://doi.org/10.3109/15368378.2011.566771

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