脉冲等离子体射流杀灭表面和水中的细菌
发布时间：2019-04-19 19:10
【摘要】：利用双极性高频脉冲电源和自制等离子体反应器,形成了直径为6mm、长3~5cm的氩气等离子体射流.当脉冲电压为2~5kV,脉冲频率为1~3kHz,氩气体积流量为3.3L/min时,等离子体射流的功率为1~6W.等离子体处理琼脂平板表面的大肠杆菌1~3min后,产生直径为2~5cm的杀菌斑.用来处理酶标板小孔内的250μL大肠杆菌菌液时,0.5~2.0min内可将大肠杆菌细胞密度下降6个对数.等离子体射流的灭菌效率随着处理间距的减小、脉冲电压和频率的增大而提高,但本质上取决于等离子体功率和能量密度.
[Abstract]:Argon plasma jet with a diameter of 6 mm and a long 3~5cm was formed by using bipolar high frequency pulse power supply and self-made plasma reactor. When the pulse voltage is 2? 5 kV, the pulse frequency is 1? 3 kHz, and the volume flow rate of argon is 3.3L/min, the power of the plasma jet is 1? 6 W. The Escherichia coli 1~3min on the surface of Agar plate was treated by plasma, and the bactericidal plaque with the diameter of 2~5cm was produced. When it was used to treat 250 渭 L E. coli liquid in the micropore of enzyme plate, the cell density of E. coli could be reduced by 6 logarithms in 0.5~2.0min. The sterilization efficiency of plasma jet increases with the decrease of treatment spacing and the increase of pulse voltage and frequency, but essentially depends on the plasma power and energy density.
【作者单位】： 浙江大学生物质化工教育部重点实验室;浙江省医疗器械研究所;
【基金】：中央高校科研业务费资助项目(2012XZZX001)
【分类号】：R318.6
本文编号：2461198
[Abstract]:Argon plasma jet with a diameter of 6 mm and a long 3~5cm was formed by using bipolar high frequency pulse power supply and self-made plasma reactor. When the pulse voltage is 2? 5 kV, the pulse frequency is 1? 3 kHz, and the volume flow rate of argon is 3.3L/min, the power of the plasma jet is 1? 6 W. The Escherichia coli 1~3min on the surface of Agar plate was treated by plasma, and the bactericidal plaque with the diameter of 2~5cm was produced. When it was used to treat 250 渭 L E. coli liquid in the micropore of enzyme plate, the cell density of E. coli could be reduced by 6 logarithms in 0.5~2.0min. The sterilization efficiency of plasma jet increases with the decrease of treatment spacing and the increase of pulse voltage and frequency, but essentially depends on the plasma power and energy density.
【作者单位】： 浙江大学生物质化工教育部重点实验室;浙江省医疗器械研究所;
【基金】：中央高校科研业务费资助项目(2012XZZX001)
【分类号】：R318.6
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