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Your position:Home > News > Industry News > New findings: Shortwave ultrav.....

New findings: Shortwave ultraviolet light may slow the spread of influenza

  • Source:net
  • Release on :2018-01-09
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     It is reported that hospitals and laboratories often use ultraviolet light to kill bacteria, but this way has a major disadvantage, that is, damage to human beings. As a result, ultraviolet light can only be used in unmanned operating rooms and empty laboratory enclosures and other places for sterilization.

     At present, researchers have found that a shorter wavelength of germicidal ultraviolet light may not be harmful to the human body, and according to the theory, it developed into a new tool to be able to use in schools, crowded aircraft, food processing plants, and even in the operating room and laboratory to reduce the spread of disease.

     Ultraviolet light is used to sterilize bacteria by destroying the molecular bonds that bind the germ's genetic material to the protein. The most commonly used is a wavelength of 254 nm of light, which contains a shorter ultraviolet wavelength, known as the C class, however, it can penetrate the skin and eyes, leading to cancer and cataracts and other diseases.

     To this end, David Brenner, a physicist at Columbia University Medical Center in New York, led a team over the past 4 years to test far-short wavelengths of ultraviolet light that could not penetrate the surface of the eye or skin. The results show that the ultraviolet light of the far-short wave only kills the surface bacteria and does not harm the experimental mice.

     In addition, in a pre-printed study published on the biorxiv of the biological pre-printed website on December 28, 2017, the researchers noted that Brenner and his colleagues conducted next tests to see if far-short ultraviolet light could solve the major health problems in many public places: planktonic bacteria.

     First, the team atomized the flu virus in the test box and then irradiated the virus with a short ultraviolet light with a wavelength of 222 nanometers, and as a control, some were not exposed to short ultraviolet light. Since then, the researchers collected liquid samples from the test box and spread them in the kidney cells of dogs susceptible to influenza, and the results showed that samples without ultraviolet light could infect cells, while those irradiated by short ultraviolet light could not.

     Shawn Gibbs, an industrial hygiene researcher, thinks that if the study succeeds, short-wave ultraviolet light will have a positive effect on disrupting the spread of disease. It is understood that Shawn Gibbs studied the disinfection properties of short ultraviolet rays at the Indiana University School of Public Health in Bloomington.

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