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. 2022 May 10;23(10):5335. doi: 10.3390/ijms23105335

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© 2022 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Antiviral characterization of an antimicrobial face shield using the bacteriophage phi 6 as a viral model of SARS-CoV-2 for biosafety reasons: (a) Antimicrobial face shield developed by the Serrano BBlab (www.serranobblab.com, accessed on 19 March 2022): next generation of preventive equipment against infections caused by enveloped viruses such as SARS-CoV-2 and multidrug-resistant bacteria. The material is composed of polyethylene terephthalate (PET) coated with benzalkonium chloride (BAK). The double-layer method was used to determine the loss of viral viability after 1 min of viral contact: (b) Bacteriophage phi 6 titration images of undiluted samples for the materials. The reduction in infection capacity can be observed by the reduction in white spots. (c) Decrease in infection titers expressed in plaque-forming units per mL (PFU/mL). CONTROL: bacteriophages without being in contact with any material; U Plastic: untreated PET; S plastic: PET treated with solvent; BAK plastic: PET treated with solvent and BAK [20].