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Article

Effectiveness of Different Cellulose-Based Filtration Materials against Inhalation of SARS-CoV-2-Like Particles

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Biotechnology and Biodiversity Center Research, Biotec, Federal University of Delta of Parnaíba, Parnaíba 64202-020, PI, Brazil
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Department of Pharmacy, Federal University of Piauí, Teresina 60400-000, PI, Brazil
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Industrial Biotechnology Program, University of Tiradentes, Aracaju 49010-390, SE, Brazil
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Tiradentes Institute, 150 Mt Vernon St, Dorchester, MA 02125, USA
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Department of Pharmacy, Federal University of Pernambuco, Recife 50741-000, PE, Brazil
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Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
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CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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Authors to whom correspondence should be addressed.
Academic Editor: Andres Castellanos-Gomez
Nanomanufacturing 2021, 1(2), 57-66; https://doi.org/10.3390/nanomanufacturing1020006
Received: 1 February 2021 / Revised: 13 May 2021 / Accepted: 17 May 2021 / Published: 1 July 2021
The respiratory protection equipment (RPE) used by health professionals consists of an essential device to prevent infectious diseases, especially those caused by biological agents such as the coronavirus (SARS-CoV-2). The current epidemiological panorama is worrying, and the context of creation and production of the mask has emerged as an alternative to RPE to face the public health crisis worldwide. The aim of this work is to present a low-cost alternative as an FFP2-like filter for a reusable respirator face mask. This study presents the comparison of different cellulose-based filtering materials performed by retention testing, time saturation testing, aerosol penetration testing, nanoparticle (~140 nm) filtration testing, bacterial filtration efficiency (BFE), analysis of material morphology and usability. The reusable respirator face mask used in this study is an open-source innovation, using 3D printing. Cotton disc proved to be the best filter material for the reusable mask, with satisfactory results and a performance similar to that shown by the N95-type mask. The cotton disc ensured effectiveness over 6 h of use, and after that, the reusable respirator face mask (here, Delfi-TRON®) needed to be sanitized and replenished with a new cotton disc. Upon preliminary analyses of filtration efficiency, the selected filter was shown to be a low-cost biodegradable and biocompatible alternative. View Full-Text
Keywords: respiratory protection equipment; respirator face mask; reusable mask; filter material; FFP2-like filter; health professionals respiratory protection equipment; respirator face mask; reusable mask; filter material; FFP2-like filter; health professionals
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MDPI and ACS Style

Araújo, A.R.d.; Nunes, L.C.C.; Oliveira, K.C.B.F.; Carvalho, M.G.F.M.; Cardoso, J.C.; Severino, P.; Soares, M.F.L.R.; Souto, E.B.; Lima, G.D. Effectiveness of Different Cellulose-Based Filtration Materials against Inhalation of SARS-CoV-2-Like Particles. Nanomanufacturing 2021, 1, 57-66. https://doi.org/10.3390/nanomanufacturing1020006

AMA Style

Araújo ARd, Nunes LCC, Oliveira KCBF, Carvalho MGFM, Cardoso JC, Severino P, Soares MFLR, Souto EB, Lima GD. Effectiveness of Different Cellulose-Based Filtration Materials against Inhalation of SARS-CoV-2-Like Particles. Nanomanufacturing. 2021; 1(2):57-66. https://doi.org/10.3390/nanomanufacturing1020006

Chicago/Turabian Style

Araújo, Alyne R.d., Lívio C.C. Nunes, Karla C.B.F. Oliveira, Maria G.F.M. Carvalho, Juliana C. Cardoso, Patricia Severino, Monica F.L.R. Soares, Eliana B. Souto, and Gildário D. Lima 2021. "Effectiveness of Different Cellulose-Based Filtration Materials against Inhalation of SARS-CoV-2-Like Particles" Nanomanufacturing 1, no. 2: 57-66. https://doi.org/10.3390/nanomanufacturing1020006

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