论文部分内容阅读
目的研制非平衡等离子体微型消毒器模型并观察其杀菌效果。方法采用载体定量杀菌试验方法和电镜观察法,对非平衡等离子体微型消毒器模型杀菌效果进行实验室观察。主要部件涉及变压器、陶瓷电极和分散器等;根据物品表面消毒的实际需要,以细菌繁殖体为试验菌,用载体法进行杀菌试验,根据活菌计数和电镜观察法初步鉴定消毒器模型消毒效果。结果微型消毒器模型发射的等离子体为紫蓝色气体状物质。经该微型消毒器产生的平均温度约40℃等离子体处理20s后,对纸片上金黄色葡萄球菌、大肠杆菌和白色念珠菌的杀灭率均达到100%。作用后标本经透射电镜观察到细菌形态变异,菌体结构受到明显破坏。结论非平衡等离子体微型消毒器可产生温度低、具有良好杀菌作用的等离子体,达到设计目标。
Objective To develop a non-equilibrium plasma micro-sterilizer model and observe its bactericidal effect. Methods The bactericidal effect of non-equilibrium plasma micro-sterilizer model was observed by the method of quantitative bactericidal test and electron microscope observation. The main components involved in transformers, ceramic electrodes and diffusers; according to the actual needs of disinfection of the surface of the object, the bacteria propagules as test bacteria, carrier method sterilization test, preliminary identification of viable bacteria count and electron microscopy disinfection model disinfection effect . Results The micro-sterilizer model emitted a plasma of violet-blue gas. The micro-sterilizer produced by the average temperature of about 40 ℃ plasma treatment after 20s, the paper on the Staphylococcus aureus, Escherichia coli and Candida albicans kill rate reached 100%. Specimens were observed by transmission electron microscopy morphological changes of bacteria, cell structure was significantly damaged. Conclusion Non-equilibrium plasma micro-sterilizer can produce low temperature, good bactericidal plasma, to achieve the design goals.