Investigation of sterilization by a microwave-generated low-temperature atmospheric pressure plasma jet

IF 0.9 4区工程技术 Q4 ENGINEERING, CHEMICAL

Journal of Microwave Power and Electromagnetic Energy Pub Date : 2022-01-02 DOI:10.1080/08327823.2022.2029117

W. Fu, Chaoyang Zhang, Xiaotong Guan, Xiaoyun Li, Yang Yan

引用次数: 1

Abstract

Abstract An investigation of sterilization by a low-temperature microwave-generated atmospheric pressure plasma jet (MAPPJ) is presented. Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and yeast Saccharomyces species (Saccharomyces sp.) at 1.0 × 103 and 1.0 × 104 cfu/mL dilutions are investigated and fungi tested experimentally. The MAPPJ is generated by several watt continuous-wave microwaves and Ar gas, and direct treatment of the bacteria by a programmable planar XY motorized translation stage. After several minutes of plasma treatment, the number of bacterial colonies was sufficiently reduced and found to be nearly zero, and bare ozone and nitrogen dioxide were observed. This investigation shows that plasma sterilization would be a novel application for solid-state microwave power sources.

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微波产生的低温大气压等离子体射流灭菌的研究

摘要对低温微波产生的常压等离子体射流(MAPPJ)灭菌进行了研究。研究了1.0 × 103和1.0 × 104 cfu/mL稀释度下的大肠杆菌(E. coli)、金黄色葡萄球菌(S. aureus)和酵母菌(Saccharomyces sp.)，并对真菌进行了实验测试。MAPPJ是由几瓦连续波微波和氩气产生的，并由可编程平面XY机动平移台直接处理细菌。经过几分钟的等离子体处理，细菌菌落数量充分减少，发现几乎为零，并且观察到裸露的臭氧和二氧化氮。该研究表明，等离子体灭菌将是固态微波电源的一种新应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Microwave Power and Electromagnetic Energy ENGINEERING, CHEMICAL-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

2.50

自引率

6.70%

发文量

期刊介绍： The Journal of the Microwave Power Energy (JMPEE) is a quarterly publication of the International Microwave Power Institute (IMPI), aimed to be one of the primary sources of the most reliable information in the arts and sciences of microwave and RF technology. JMPEE provides space to engineers and researchers for presenting papers about non-communication applications of microwave and RF, mostly industrial, scientific, medical and instrumentation. Topics include, but are not limited to: applications in materials science and nanotechnology, characterization of biological tissues, food industry applications, green chemistry, health and therapeutic applications, microwave chemistry, microwave processing of materials, soil remediation, and waste processing.