UV-Based Technologies for SARS-CoV2 Inactivation: Status and Perspectives

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of COVID-19, which has affected international healthcare systems since beginning 2020. Among sanitizing approaches, UV irradiation a well-known technology often used in different environments to reduce microbial contamination and viral transmission. In particular, several works have demonstrated that UVC radiation able inactivate SARS-CoV-2 compromising its genome virion integrity. With this work we review analyze current status pandemic state art technology. traditional discharge lamps having serious environmental issue, due their working principle based on mercury, primary focus shifted aluminum gallium nitride deep-ultraviolet light emitting diodes. These devices are exploited for compact environmentally friendly disinfection systems, but efficiency reliability still play limiting role into mass market adoption system efficacy. then latest reports effects dose wavelength inactivation, thus providing two key pillars development systems: quantitative evaluation required achieve an effective inactivation.