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  2. Ultraviolet germicidal irradiation - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet_germicidal...

    UV treatment is rapid and, in terms of primary energy use, approximately 20,000 times more efficient than boiling. [citation needed] UV disinfection is most effective for treating high-clarity, purified reverse osmosis distilled water. Suspended particles are a problem because microorganisms buried within particles are shielded from the UV ...

  3. Far-UVC - Wikipedia

    en.wikipedia.org/wiki/Far-UVC

    UV-B, predominantly responsible for the harmful effects of sunlight, poses the highest risk for erythema, photokeratitis, sunburn and skin cancer. [15] [16] [17] While longer UV-C wavelengths and UV-A can also cause damage, their effects are less severe than UV-B. In contrast, far-UVC has shown remarkably different results.

  4. Germicidal lamp - Wikipedia

    en.wikipedia.org/wiki/Germicidal_lamp

    Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications. [ 2 ] By 2019, LEDs made up 41.4% of UV light sales, up from 19.2% in 2014 [ 3 ] The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023.

  5. Blood irradiation therapy - Wikipedia

    en.wikipedia.org/wiki/Blood_irradiation_therapy

    This method is used for the ultraviolet (UV) blood irradiation (UVBI) by UV lamps. In the transcutaneous method, the radiation goes through the skin, by placing a device on the outside of the skin. In the intravenous method, a device is inserted into a large blood vessel. The laser light is monochromatic.

  6. Plasma medicine - Wikipedia

    en.wikipedia.org/wiki/Plasma_medicine

    The plasma treatment generates reactive oxygen and nitrogen species, which include free radicals. These species include O, O 3, OH, H 2 O 2, HO 2, NO, ONOOH and many others. This increase the oxidative stress on cells, which may explain the selective killing of cancer cells, which are already oxidatively stressed. [37]

  7. Non-ionizing radiation - Wikipedia

    en.wikipedia.org/wiki/Non-ionizing_radiation

    Photochemistry such as pyrimidine dimer formation in DNA can happen through most of the UV band, including much of the band that is formally non-ionizing. Ultraviolet light induces melanin production from melanocyte cells to cause sun tanning of skin. Vitamin D is produced on the skin by a radical reaction initiated by UV radiation.

  8. Ultraviolet - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet

    Halogen lamps with fused quartz envelopes are used as inexpensive UV light sources in the near UV range, from 400 to 300 nm, in some scientific instruments. Due to its black-body spectrum a filament light bulb is a very inefficient ultraviolet source, emitting only a fraction of a percent of its energy as UV, as explained by the black body ...

  9. Pathogen reduction using riboflavin and UV light - Wikipedia

    en.wikipedia.org/wiki/Pathogen_reduction_using...

    Pathogen reduction using riboflavin and UV light is a method by which infectious pathogens in blood for transfusion are inactivated by adding riboflavin and irradiating with UV light. [ 1 ] [ 2 ] [ 3 ] This method reduces the infectious levels of disease-causing agents that may be found in donated blood components, while still maintaining good ...

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