A safer ultraviolet light was found to effectively kill the virus causing COVID-19 pandemic, revealed researchers.
Ultraviolet C light with a 222 nm wavelength was found to effectively kill the SARS-CoV-2 virus that causes COVID-19. The 222 nm wavelength is safer to use around humans, stated a study conducted by Hiroshima University researchers. The study is //published in the American Journal of Infection Control. Experiment Details
- Ushio's Care222TM krypton-chloride excimer lamp was used during the tests.
- A 100 microliter solution containing the virus (ca. 5 × 106 TCID50/mL) was spread onto a 9-centimeter sterile polystyrene plate.
- The in vitro experiment results revealed that 99.7% of the SARS-CoV-2 viral culture was killed after a 30-second exposure to 222 nm UVC irradiation at 0.1 mW/cm2.
Since the study examined the in vitro efficacy, researchers suggested further evaluation of 222 nm UVC irradiation's safety in killing SARS-CoV-2 viruses in real-world surfaces.
Source-Medindia