Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Inactivating SARS-CoV-2 Using 275nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation

Nicola Trivellin
* ORCID logo ,
Matteo Buffolo
,
Francesco Onelia
,
Alberto Pizzolato
,
Marco Barbato
,
Viviana Teresa Orlandi
ORCID logo ,
Claudia Del Vecchio
,
Fabrizio Dughiero
,
Enrico Zanoni
,
Gaudenzio Meneghesso
,
Andrea Crisanti
,
Matteo Meneghini
ORCID logo
Version 1 : Received: 24 February 2021 / Approved: 25 February 2021 / Online: 25 February 2021 (14:44:22 CET)

A peer-reviewed article of this Preprint also exists.

Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Orlandi, M.B.V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275 nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Materials 2021, 14, 2315. Trivellin, N.; Buffolo, M.; Onelia, F.; Pizzolato, A.; Orlandi, M.B.V.T.; Del Vecchio, C.; Dughiero, F.; Zanoni, E.; Meneghesso, G.; Crisanti, A.; Meneghini, M. Inactivating SARS-CoV-2 Using 275 nm UV-C LEDs through a Spherical Irradiation Box: Design, Characterization and Validation. Materials 2021, 14, 2315.

Journal reference: Materials 2021, 14, 2315
DOI: 10.3390/ma14092315

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.

Keywords

SARS-CoV-2; Covid-19; LED; UVC; disinfection; inactivation; virucide

Subject

ENGINEERING, Automotive Engineering

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.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 1
Bookmark BibSonomy Mendeley Reddit Delicious Publons
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.