Version 1
: Received: 24 February 2021 / Approved: 25 February 2021 / Online: 25 February 2021 (14:44:22 CET)
How to cite:
Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Barbato, M.; Orlandi, V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Preprints2021, 2021020588 (doi: 10.20944/preprints202102.0588.v1).
Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Barbato, M.; Orlandi, V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Preprints 2021, 2021020588 (doi: 10.20944/preprints202102.0588.v1).
Cite as:
Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Barbato, M.; Orlandi, V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Preprints2021, 2021020588 (doi: 10.20944/preprints202102.0588.v1).
Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Barbato, M.; Orlandi, V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Preprints 2021, 2021020588 (doi: 10.20944/preprints202102.0588.v1).
Abstract
We report on the design, characterization and validation of a spherical irradiation system for inactivating SARS-CoV-2, based on UV-C 275 nm LEDs. The system is designed to maximize ir-radiation intensity and uniformity, and can be used for irradiating a volume of 18 liters. To this aim: (i) several commercially available LEDs have been acquired and analyzed; (ii) a complete optical study has been carried out in order to optimize the efficacy of the system. (iii) The re-sulting prototype has been characterized optically, and tested for the inactivation of SARS-CoV-2 for different exposure times, doses and surface types. Results indicate that a 99.9% inactivation can be reached after 1 minute of treatment with a dose of 83.1 J/m2.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Nicola Trivellin
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