Analysis and design of SARS-CoV-2 disinfection chambers based on UVC LEDs

Nicola Trivellin; Matteo Buffolo; Francesco Onelia; Alberto Pizzolato; Marco Barbato; Viviana T. Orlandi; Claudia Del Vecchio; Fabrizio Dughiero; Enrico Zanoni; Gaudenzio Meneghesso; Andrea Crisanti; Matteo Meneghini

doi:10.1117/12.2607725

3 March 2022 Analysis and design of SARS-CoV-2 disinfection chambers based on UVC LEDs

Nicola Trivellin, Matteo Buffolo, Francesco Onelia, Alberto Pizzolato, Marco Barbato, Viviana T. Orlandi, Claudia Del Vecchio, Fabrizio Dughiero, Enrico Zanoni, Gaudenzio Meneghesso, Andrea Crisanti, Matteo Meneghini

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Proceedings Volume 12022, Light-Emitting Devices, Materials, and Applications XXVI; 1202208 (2022) https://doi.org/10.1117/12.2607725
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

With this work we propose a guideline for the development of efficient and effective UVC surface disinfection systems for SARS-CoV-2 based on LED technology. The work analyzes the optical and electrical characteristics of state of the art UVC LEDs. From the most recent scientific literature, optical simulations, and laboratory experiments we propose guidelines for the design of high efficiency LED based antiviral system for the treatment of contaminated surfaces. To validate the guidelines two different UVC-LED irradiation systems, for spherical and flat surfaces, have been designed, manufactured and tested. Results indicate a log-4 inactivation of SARS-CoV-2 in few minutes.

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Nicola Trivellin, Matteo Buffolo, Francesco Onelia, Alberto Pizzolato, Marco Barbato, Viviana T. Orlandi, Claudia Del Vecchio, Fabrizio Dughiero, Enrico Zanoni, Gaudenzio Meneghesso, Andrea Crisanti, and Matteo Meneghini "Analysis and design of SARS-CoV-2 disinfection chambers based on UVC LEDs", Proc. SPIE 12022, Light-Emitting Devices, Materials, and Applications XXVI, 1202208 (3 March 2022); https://doi.org/10.1117/12.2607725

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