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Low‐Temperature Internal Sterilization of Medical Plastic Tubes Using a Linear Dielectric Barrier Discharge
Author(s) -
Eto Hiroyuki,
Ono Yoshihito,
Ogino Akihisa,
Nagatsu Masaaki
Publication year - 2008
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.200700076
Subject(s) - sterilization (economics) , dielectric barrier discharge , materials science , ozone , irradiation , composite material , plasma , radiation , linear relationship , dielectric , analytical chemistry (journal) , optics , chemistry , chromatography , optoelectronics , organic chemistry , foreign exchange market , foreign exchange , physics , quantum mechanics , nuclear physics , monetary economics , economics , statistics , mathematics
The use of a linear DBD for the internal sterilization of thin plastic tubes used in medical facilities is studied. We demonstrated that flexible, long, linear DBD plasmas were produced with a diameter of 0.2–3 mm and a length longer than 1 m. The internal sterilization experiments of medical plastic tubes were carried out using a thin, linear DBD. We confirmed that 10 6 Geobacillus stearothermophilus spores were killed inside the tube at room temperature after 12 min DBD irradiation under atmospheric conditions. The sterilization was attributed to UV radiation of the nitrogen molecules' second positive system, the ozone generated in the air, and/or their synergetic effect.