An Emerging Innovative UV Disinfection Technology (Part II): Virucide Activity on SARS-CoV-2
By Gabriele Messina, Alessandro Della Camera, Pietro Ferraro, Davide Amodeo, Alessio Corazza, Nicola Nante, and Gabriele Cevenini
The coronavirus SARS-CoV-2 pandemic has become a global health burden. Surface sanitation is one of the key points to reducing the risk of transmission in healthcare and other public spaces. UVC light is already used in hospital and laboratory infection control, and some recent studies have shown its effectiveness on SARS-CoV-2. An innovative UV chip technology, described in Part I of this study, has recently appeared to overcome the limits of old lamps and is proposed as a valid alternative to LEDs. This study was designed to test a device's virucidal activity on SARS-CoV-2 based on the new UV chip technology. Via an initial concentration of virus suspension of 107.2 TCID50/mL, the tests revealed a viral charge reduction of more than 99.9% after 3 min; the maximum detectable attenuation value of Log10 = 5.7 was measured at 10 min of UV exposure.