As a new non-antibiotic treatment method,ultraviolet in the wavelength range of 100-400 nm has been shown to have certain antibacterial properties.The sterilization effect varies from wavelength to wavelength of ultraviolet,and the biosafety also varies.In recent years,lots of research reports have emerged in this field,especially for ultraviolet C(UVC)in the wavelength range of 200-280 nm,which has become a hot research topic.This paper reviewed the new findings in this wavelength range,including the mechanism,factors and effectiveness of action of UVC inactivation of different pathogenic microorganisms,analyzed the biosafety of UVC technology,and also briefly summarized the research progress of UVC technical devices in clinical applications,aiming to provide a reference for related research.
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