Plasmonic Enhancement Strategies for Light-Driven Microbe Inactivation.

Plasmonic Enhancement Strategies for Light-Driven Microbe Inactivation.
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用于光驱动微生物灭活的等离子体增强策略。

DOI:
10.1021/acs.jpcc.1c09951
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发表时间:
2022-02-10
影响因子:
3.7
通讯作者:
Reinhard, Bjorn M.
Reinhard, Bjorn M.
中科院分区:
化学3区
文献类型:
--
作者:
Reinhard, Bjorn M.

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光可以是有效的抗菌剂。特别是UV-C光,现在通常用于对无生命的表面,水,甚至空气进行消毒。然而,高能光也可能导致不必要的光损伤,并且是危险的。因此,传统的光介导的微生物灭活并不适用于所有应用。等离子体纳米结构可以增强电磁光谱的可见光范围内的电磁场,并显示出独特的光诱导响应,即使对于没有等离子体增强的波长也可以驱动强的抗微生物效果。因此,等离子体纳米结构提供了一种潜在的策略,将光的抗微生物作用扩展到光相关附带损伤较低的波长和强度范围。这一观点探讨了选定的等离子体增强抗菌策略,阐明了潜在的物理化学机制,并讨论了应用。
Light can be an effective antimicrobial. UV-C light, in particular, is now commonly used to sterilize inanimate surfaces, water, and even air. Highly energetic light can, however, also lead to unwanted photodamage and be hazardous. Consequently, conventional light-mediated microbe inactivation is not suitable for all applications. Plasmonic nanostructures can enhance electromagnetic fields in the visible range of the electromagnetic spectrum and show unique light-induced responses that can drive strong antimicrobial effects even for wavelengths that without plasmonic enhancement have little to no antimicrobial impact. Plasmonic nanostructures offer thus a potential strategy to expand the antimicrobial effect of light to wavelength and intensity ranges in which light-associated collateral damages are lower. This Perspective examines selected plasmon-enhanced antimicrobial strategies, elucidates the underlying physico-chemical mechanisms, and discusses applications.
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