The germicidal effect of a prototype multicolor lighting panel on human coronavirus

John C. Castel; Violet V Bumah; Qene Mahlet; Chukuka S Enwemeka

doi:10.1117/12.2668007

17 March 2023 The germicidal effect of a prototype multicolor lighting panel on human coronavirus

John C. Castel, Violet V Bumah, Qene Mahlet, Chukuka S Enwemeka

Proceedings Volume PC12362, Mechanisms of Photobiomodulation Therapy XVII; PC123620E (2023) https://doi.org/10.1117/12.2668007
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

In response to the COVID-19 pandemic, we developed an innovative antimicrobial pulsed blue light technology and demonstrated that it is antiviral against HCoV-OC43 and HCoV-229E—two surrogates of SARS-CoV-2. In further studies, we developed an antiviral light panel with multiple colors—including white— using Pulsed Blue light at 450 nm that could replace commercial light fixtures. We demonstrated a 39.5% decline in viral RNA after 10hr (p <.05). This study indicates that it is possible to develop and deploy a commercial cost-effective light fixture as an environmentally safe decontaminant that can inactivate viruses and other microorganisms.

Conference Presentation

Citation Download Citation

John C. Castel, Violet V Bumah, Qene Mahlet, and Chukuka S Enwemeka "The germicidal effect of a prototype multicolor lighting panel on human coronavirus", Proc. SPIE PC12362, Mechanisms of Photobiomodulation Therapy XVII, PC123620E (17 March 2023); https://doi.org/10.1117/12.2668007

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