New research suggests that ultraviolet (UV) light that operates at lower bandwidth than what currently exists in the market could be just as useful in inactivating the SARS-CoV-2 virus with less harmful effects on skin cells. Joint research by Asahi Kasei Corp. and Nara Medical University confirmed that 226 nanometer ultraviolet-C (UVC) LEDs can inactivate the SARS-CoV-2 virus that causes COVID-19 while having less effect on animal skin cells compared to 270 nm UVC LEDs.
Ultraviolet (UV) light has a long-standing track record in use as an antimicrobial. But the primary limitation to using UV light in relation to the human body is that it can also potentially damage its cells. A group of researchers at the Cedars-Sinai Medical Center in Los Angeles, Calif., known as the Medically Associated Science and Technology (MAST) team, is now researching safe UV technology for use in COVID-19 treatment.