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Research

 
Article:【What the principle of UVC 253.7nm sterilization?】
Date:2013/04/01

 

Purging Light uses so-called UVC in sterilization.

  The unit is using the ultraviolet radiation with 253.7nm wavelength emitted by the provided UV-C lamp tube to irradiate the pathogens on surfaces of objects or in environment, then to destroy their genes, and thus to make them losing the ability of reproduction or even dead, so as to sterilize on surfaces of objects or in environment.

 

   How UVC to sterilize?

Ultraviolet radiation effects on RNA as it effects on DNA. Two adjacent uracils of RNA will become uracil dimers after irradiated by UVC.

The right figure shows the absorbance of thymine and uracil related to wavelength of ultraviolet radition. The right curves is for thymine of DNA and the left curve is for uracil of RNA.

 

 

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