间歇性低剂量远紫外线照射抑制了低于值极限值的常见菌的生长
Emilie Hage Mogensen1, Christian Kanstrup Holm1,2
1UV Medico A/S, Aarhus, Denmark.
PloS one
|July 2, 2024
概括
远紫外线光有效地抑制常见的菌生长,即使在低剂量. 这项技术有望改善室内空气质量,并防止占用空间的菌感染.
科学领域:
- 环境健康 环境健康
- 微生物学 微生物学
- 摄影生物学 摄影生物学
背景情况:
- 建筑物中的菌感染带来健康风险,从过敏到免疫受损个体的严重感染.
- 目前用于防菌的策略有限,这凸显了对新方法的需求.
- 远紫外线C (远紫外线) 光提供了一种有前途的微生物无活化方法,并已证明对人类的安全性.
研究的目的:
- 为了评估远紫外线光在抑制普通的菌生产真菌Penicillium candidum生长中的有效性.
- 评估低剂量远紫外线照射对模拟现实条件下的菌生长的影响.
主要方法:
- 研究了222nm远紫外线光对Penicillium candidum生长的抑制作用.
- 评估了使用两个设置的生长抑制:邻近的子产生的捐赠者和直接的子播种在甲板上.
- 在低剂量,开启-关闭工作周期下测量抑制,包括低于值限制 (23mJ/cm2) 的剂量.
主要成果:
- 远紫外线光显著抑制了Penicillium candidum的垂直和水平生长.
- 即使远紫外线剂量低于确定的值限制值,也观察到抑制作用.
- 低剂量,开关工作周期的应用在控制模具增殖方面被证明是有效的.
结论:
- 远紫外线光显示出作为一种减少或防止室内环境中菌生长的策略的巨大潜力.
- 这项技术可以有助于改善室内空气质量,即使在人们的存在下也是如此.
- 进一步应用远紫外线技术可能为管理与建筑有关的模具问题提供安全有效的解决方案.
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