紫外线后的病毒行为254 处理具有不同表面性能的材料
Castine Bernardy1, James Malley1
1Department of Civil and Environmental Engineering, College of Engineering & Physical Sciences, University of New Hampshire, Durham, NH 03824, USA.
Microorganisms
|September 28, 2023
概括
紫外线254对病毒失活的有效性因表面类型而异. 表面的孔隙性和粗性等特性会影响病毒保留和紫外线杀菌功效,影响消毒策略.
科学领域:
- 微生物学 微生物学
- 表面科学是一门学科.
- 摄影化学的使用.
背景情况:
- 随着COVID-19的爆发,人们在对表面的杀菌性紫外线应用的理解中出现了差距.
- 有效的表面消毒对于公共卫生和感染控制至关重要.
研究的目的:
- 在五个常见的表面上评估紫外线对病毒失活的有效性.
- 为了将表面特征与病毒保留和紫外线剂量反应相关联.
主要方法:
- 使用扫描电子显微镜 (SEM) 来确定纳米尺度特征的表面表征.
- 测量表面的多孔度,粗度,接触角和泽塔电位.
- 评估病毒保留和UV254剂量响应曲线的MS-2菌在,陶,福米卡层,PTFE和不钢.
主要成果:
- 表面特性 (孔隙性,粗性,接触角度,泽塔潜力) 与病毒保留相关.
- 在反复进行紫外线处理后,表面呈现出多孔性和表面积的增加,这阻碍了在没有紫外线暴露的情况下的病毒恢复.
- PTFE表现出更的UV254剂量响应曲线,在25mJ/cm2实现了无活化,与其高紫外线反射性相一致.
结论:
- 紫外线254对表面病毒失活的有效性受到材料表面性能的显著影响.
- 了解这些表面病毒相互作用对于优化基于紫外线的消毒技术至关重要.
- 建议根据表面类型量身定制紫外线消毒协议,以获得最大的有效性.
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