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The Brush‐Shape Device Used to Generate Atmospheric and Homogeneous Plasmas for Biomedical Applications
Author(s) -
Song Ying,
Liu Dongping,
Wang Wenchun,
Ji Longfei,
Zhang Qi,
Ni Weiyuan,
Niu Jinhai
Publication year - 2013
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201200042
Subject(s) - plasma , brush , homogeneous , atmospheric pressure plasma , sterilization (economics) , materials science , jet (fluid) , analytical chemistry (journal) , chemistry , composite material , chromatography , physics , mechanics , nuclear physics , monetary economics , economics , foreign exchange market , thermodynamics , foreign exchange
The brush‐shape device mainly consisting of the well‐aligned and microns‐thick hollow quartz fibers can be used to generate an atmospheric and homogeneous cold plasma jet for biomedical applications. Addition of a trace amount of O 2 into the feed gas greatly altered the electrical properties of the plasma jet, thus had an obvious effect on the sterilization efficiency. The uniformity of the brush‐shape plasma jet along its transverse direction was well consistent with the uniform distribution of sterilization efficiency. The atmospheric He plasma jet containing 1% O 2 may kill all the Candida albicans cells with a population of 10 5 spores within an exposure time of 180 s. Analysis indicates that both O radicals and charged species can be an important contributor in this plasma inactivation.