UV light-emitting diodes (UV LEDs) are an emerging technology and a UV source for pathogen inactivation, however low UV-LED wavelengths are costly and have low fluence rate. Our results suggest that the sensitivity of human Coronavirus (HCoV-OC43 used as SARS-CoV-2 surrogate) was wavelength dependent with 267 nm ~ 279 nm > 286 nm > 297 nm. Other viruses showed similar results, suggesting UV LED with peak emission at ~286 nm could serve as an effective tool in the fight against human Coronaviruses. Graphical Abstract Unlabelled Image Highlights • Corona virus HCoV-43 was found sensitive to UV-LED irradiation. • Sensitivity was wavelength dependent with 267 nm ~ 279 nm > 286 nm > 297 nm. • Similar wavelength sensitivity was found for other viruses. • UV-LEDs could probably be used in the fight against SARS-CoV-2 and COVID19.
【저자키워드】 coronavirus, COVID19, SARS, Corona, wavelength, UV-LEDs,