Plasma sterilization realization by needle-bacterial liquid corona discharge and glow discharge

HE Zhen-zhen; JIANG Lin-xiu; CHEN Yan-ling; DENG Min-chao; JIANG Yong-rong; LI Hua

doi:10.13873/j.1000-9787(2018)08-0094-03

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Plasma sterilization realization by needle-bacterial liquid corona discharge and glow discharge

更新时间：2025-09-11

- Plasma sterilization realization by needle-bacterial liquid corona discharge and glow discharge
- Issue 8, Pages: 94-96(2018)
- 作者机构：
  
  桂林电子科技大学生命与环境科学学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-9787(2018)08-0094-03
  CLC： R187
- Published：2018
- 稿件说明：
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HE Zhen-zhen, JIANG Lin-xiu, CHEN Yan-ling, et al. Plasma sterilization realization by needle-bacterial liquid corona discharge and glow discharge[J]. 2018, (8): 94-96.
DOI：

HE Zhen-zhen, JIANG Lin-xiu, CHEN Yan-ling, et al. Plasma sterilization realization by needle-bacterial liquid corona discharge and glow discharge[J]. 2018, (8): 94-96. DOI： 10.13873/j.1000-9787(2018)08-0094-03.

摘要

为满足医疗器械的灭菌要求

采用直流（DC）放电设计了一种针—菌液等离子体消毒灭菌装置。在大气压环境、室温、无外部通入气流的条件下

由0

20 000 V可调的直流负高压电源驱动

镇流电阻值12 MΩ

测试电阻值1 kΩ

在电压为-5 k V和-9.6 k V时分别产生了电晕和辉光放电。放电装置中1 mm钨针接负高压

1 00μL菌液接地。实验表明:在相同条件下

相较电晕放电

辉光放电的灭菌效果更好

且可在60 s内杀灭大肠杆菌和金黄色葡萄球菌。

Abstract

To meet sterilization requirements of medical instruments

a new needle-bacteria liquid experimental device is designed by direct current（ DC） discharge. Without an external air flow

driven by a 0

20 000 V power

a 12 MΩ ballast resistor and a 1 kΩ test resistor

corona discharge and glow discharge are generated with-5 k V and-9. 6 k V applied voltage respectively at atmospheric pressure and room temperature. The 1 mm needle is connected to negative high voltage and 100μL bacteria liquid is connected to the ground. The experiment shows that the sterilization effect of the glow discharge is better than that of the corona discharge under the same conditions

and E. coli and S. aureus can be killed in about 60 s by glow discharge.

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