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Recent developments in filtration media and respirator technology in response to COVID-19

ABSTRACT: The COVID-19 pandemic triggered a surge in demand for N95 or equivalent respirators that the global supply chain was unable to satisfy. This shortage in critical equipment has inspired research that addresses the immediate problems and has accelerated the development of the next-generation...

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Autores principales: Wang, Peter L., Roschli, Alex, Paranthaman, M. Parans, Theodore, Merlin, Cramer, Corson L., Zangmeister, Chris, Zhang, Yuepeng, Urban, Jeffrey J., Love, Lonnie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8442655/
https://www.ncbi.nlm.nih.gov/pubmed/34539059
http://dx.doi.org/10.1557/s43577-021-00173-6
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author Wang, Peter L.
Roschli, Alex
Paranthaman, M. Parans
Theodore, Merlin
Cramer, Corson L.
Zangmeister, Chris
Zhang, Yuepeng
Urban, Jeffrey J.
Love, Lonnie
author_facet Wang, Peter L.
Roschli, Alex
Paranthaman, M. Parans
Theodore, Merlin
Cramer, Corson L.
Zangmeister, Chris
Zhang, Yuepeng
Urban, Jeffrey J.
Love, Lonnie
author_sort Wang, Peter L.
collection PubMed
description ABSTRACT: The COVID-19 pandemic triggered a surge in demand for N95 or equivalent respirators that the global supply chain was unable to satisfy. This shortage in critical equipment has inspired research that addresses the immediate problems and has accelerated the development of the next-generation filtration media and respirators. This article provides a brief review of the most recent work with regard to face respirators and filtration media. We discuss filtration efficiency of the widely utilized cloth masks. Next, the sterilization of and reuse of existing N95 respirators to extend the existing stockpile is discussed. To expand near-term supplies, optimization of current manufacturing methods, such as melt-blown processes and electrospinning, has been explored. Future manufacturing methods have been investigated to address long-term supply shortages. Novel materials with antiviral and sterilizable properties with the ability for multiple reuses have been developed and will contribute to the development of the next generation of longer lasting multi-use N95 respirators. Finally, additively manufactured respirators are reviewed, which enable a rapidly deployable source of reusable respirators that can use any filtration fabric. GRAPHIC ABSTRACT: [Image: see text]
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spelling pubmed-84426552021-09-15 Recent developments in filtration media and respirator technology in response to COVID-19 Wang, Peter L. Roschli, Alex Paranthaman, M. Parans Theodore, Merlin Cramer, Corson L. Zangmeister, Chris Zhang, Yuepeng Urban, Jeffrey J. Love, Lonnie MRS Bull Review Article ABSTRACT: The COVID-19 pandemic triggered a surge in demand for N95 or equivalent respirators that the global supply chain was unable to satisfy. This shortage in critical equipment has inspired research that addresses the immediate problems and has accelerated the development of the next-generation filtration media and respirators. This article provides a brief review of the most recent work with regard to face respirators and filtration media. We discuss filtration efficiency of the widely utilized cloth masks. Next, the sterilization of and reuse of existing N95 respirators to extend the existing stockpile is discussed. To expand near-term supplies, optimization of current manufacturing methods, such as melt-blown processes and electrospinning, has been explored. Future manufacturing methods have been investigated to address long-term supply shortages. Novel materials with antiviral and sterilizable properties with the ability for multiple reuses have been developed and will contribute to the development of the next generation of longer lasting multi-use N95 respirators. Finally, additively manufactured respirators are reviewed, which enable a rapidly deployable source of reusable respirators that can use any filtration fabric. GRAPHIC ABSTRACT: [Image: see text] Springer International Publishing 2021-09-15 2021 /pmc/articles/PMC8442655/ /pubmed/34539059 http://dx.doi.org/10.1557/s43577-021-00173-6 Text en © This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Review Article
Wang, Peter L.
Roschli, Alex
Paranthaman, M. Parans
Theodore, Merlin
Cramer, Corson L.
Zangmeister, Chris
Zhang, Yuepeng
Urban, Jeffrey J.
Love, Lonnie
Recent developments in filtration media and respirator technology in response to COVID-19
title Recent developments in filtration media and respirator technology in response to COVID-19
title_full Recent developments in filtration media and respirator technology in response to COVID-19
title_fullStr Recent developments in filtration media and respirator technology in response to COVID-19
title_full_unstemmed Recent developments in filtration media and respirator technology in response to COVID-19
title_short Recent developments in filtration media and respirator technology in response to COVID-19
title_sort recent developments in filtration media and respirator technology in response to covid-19
topic Review Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8442655/
https://www.ncbi.nlm.nih.gov/pubmed/34539059
http://dx.doi.org/10.1557/s43577-021-00173-6
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