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作 者:张倍铭 曾志辉 李晓丹 叶建设[1] 武士坤[3] 马俊[3] 吕雪飞[2] ZHANG Beiming;ZENG Zhihui;LI Xiaodan;YE Jianshe;WU Shikun;MA Jun;LYU Xuefei(Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;School of Medical Technology,Beijing Institute of Technology,Beijing 100081,China;Beijing Institute of Mechanical Equipment,Beijing 100854,China)
机构地区:[1]北京跟踪与通信技术研究所,北京100094 [2]北京理工大学医学技术学院,北京100081 [3]北京机械设备研究所,北京100854
出 处:《载人航天》2024年第3期300-305,共6页Manned Spaceflight
摘 要:针对航天员在执行远距离复杂环境的地外天体作业后导致舱内携带微生物风险增加的问题,围绕不同航材表面微生物的消杀试剂、消杀方法及消杀效果开展研究。选择杀菌效果强、持续时间长以及对环境和人体友好的含氯消毒剂三氯异氰尿酸和含溴消毒剂二溴海因,以3种典型空间微生物风险菌(大肠杆菌、金黄色葡萄糖球菌和芽孢杆菌)作为实验对象,研究了单一消毒剂及其复合浓度配比对舱内常见的3种材料(304不锈钢、PP塑料和PVC板)表面的微生物消杀效果。结果表明:表面喷洒单一消毒剂对3种材料表面细菌的杀灭率可达99.9999%以上,而表面喷洒复合浓度配比的消毒剂消杀效果要优于单一组分,杀灭率均大于99.99999%,且大大降低了消毒剂的使用量。Astronauts will carry out missions under more complex and unknown environments on ex-traterrestrial bodies of longer distances with the acceleration of deep-space exploration missions such as the exploration of Moon,Mars,and asteroid.The risk of bring microorganisms back in the return cabin increases.To solve this problem,the disinfectants,disinfection methods,and their effective-ness against different surface microorganisms were studied in this paper.The disinfectants Tri-chloroisocyanuric acid and Dibromohymenin,with the characteristics of strong and long-lasting steri-lization effects,environment-friendly and human-friendly,were chosen to assess their efficacy a-gainst typical space microorganisms(Escherichia coli,Staphylococcus aureus,and Bacillus subtilis)on the surfaces of three common spacecraft materials(304 stainless steel,PP plastic,and PVC board).The results showed that the sterilization rate of the bacteria on the surface of the three mate-rials sprayed with single disinfectant was above 99.9999%,and that the disinfection effect of the compound concentration ratio was superior to that of the single components,with a sterilization rate greater than 99.99999%,while significantly reducing the amount of disinfectant used.
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