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    Hybrid Plasma - Prospects for Application in Medicine and Biology

    Year: 2020

    Journal: Russ. Phys. J., Volume 62, MAR, page 2092–2100

    Authors: Vasilieva, T. M.; Vasiliev, M. N.; Garaeva, V. V.; Zlobin, I. S.; Mint, Zaw Ye; Htau, Khin Maung; Kyaw, Htet Wai Yan; Zaw, Htet Ko Ko

    Keywords: hybrid plasma; electron-beam plasma; RF-discharge; plasma medicine; biocompatible materials; sterilization

    Different schemes and designs of generators of low-temperature hybrid plasma produced by simultaneous ionization of plasma-generating medium by an electron beam with electron energy of 30 keV and an RF discharge (13.56 MHz) are considered. A plasma-chemical reactor designed for hybrid plasma generation is described, and results of spectrometric measurements of its reaction volume are presented. The reactor has been used to prepare biocompartible thin chitosan films. Experiments showed that modification of chitosan films in hybrid oxygen plasma improves their hydrophilic properties and has advantages over modification in RF-discharge or electron beam plasma when they are used separately. The bactericidal effect of the hybrid plasma was found in tests Escherichia coli cultures. Prospects for practical hybrid plasma applications in biology and medicine are discussed.
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