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Microwave assisted nanofibrous air filtration for disinfection of bioaerosols
Airborne biological agents, albeit intentionally released or naturally occurring, pose one of the biggest threats to public health and security. In this study, a microwave assisted nanofibrous air filtration system was developed to disinfect air containing airborne pathogens. Aerosolized E. coli veg...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7126052/ https://www.ncbi.nlm.nih.gov/pubmed/32287374 http://dx.doi.org/10.1016/j.jaerosci.2010.06.001 |
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author | Zhang, Qi Damit, Brian Welch, James Park, Hyoungjun Wu, Chang-Yu Sigmund, Wolfgang |
author_facet | Zhang, Qi Damit, Brian Welch, James Park, Hyoungjun Wu, Chang-Yu Sigmund, Wolfgang |
author_sort | Zhang, Qi |
collection | PubMed |
description | Airborne biological agents, albeit intentionally released or naturally occurring, pose one of the biggest threats to public health and security. In this study, a microwave assisted nanofibrous air filtration system was developed to disinfect air containing airborne pathogens. Aerosolized E. coli vegetative cells and B. subtilis endospores, as benign surrogates of pathogens, were collected on nanofibrous filters and treated by microwave irradiation. Both static on-filter and dynamic in-flight tests were carried out. Results showed that E. coli cells were efficiently disinfected in both static and in-flight tests, whereas B. subtilis endospores were more resistant to this treatment. Microwave power level was found to be the major factor determining the effectiveness of disinfection. Both thermal and non-thermal effects of microwave irradiation contributed to the disinfection. Reducing flow velocity to decrease heat loss yielded higher disinfection efficiency. |
format | Online Article Text |
id | pubmed-7126052 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-71260522020-04-06 Microwave assisted nanofibrous air filtration for disinfection of bioaerosols Zhang, Qi Damit, Brian Welch, James Park, Hyoungjun Wu, Chang-Yu Sigmund, Wolfgang J Aerosol Sci Article Airborne biological agents, albeit intentionally released or naturally occurring, pose one of the biggest threats to public health and security. In this study, a microwave assisted nanofibrous air filtration system was developed to disinfect air containing airborne pathogens. Aerosolized E. coli vegetative cells and B. subtilis endospores, as benign surrogates of pathogens, were collected on nanofibrous filters and treated by microwave irradiation. Both static on-filter and dynamic in-flight tests were carried out. Results showed that E. coli cells were efficiently disinfected in both static and in-flight tests, whereas B. subtilis endospores were more resistant to this treatment. Microwave power level was found to be the major factor determining the effectiveness of disinfection. Both thermal and non-thermal effects of microwave irradiation contributed to the disinfection. Reducing flow velocity to decrease heat loss yielded higher disinfection efficiency. Elsevier Ltd. 2010-09 2010-06-10 /pmc/articles/PMC7126052/ /pubmed/32287374 http://dx.doi.org/10.1016/j.jaerosci.2010.06.001 Text en Copyright © 2010 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Zhang, Qi Damit, Brian Welch, James Park, Hyoungjun Wu, Chang-Yu Sigmund, Wolfgang Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title | Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title_full | Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title_fullStr | Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title_full_unstemmed | Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title_short | Microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
title_sort | microwave assisted nanofibrous air filtration for disinfection of bioaerosols |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7126052/ https://www.ncbi.nlm.nih.gov/pubmed/32287374 http://dx.doi.org/10.1016/j.jaerosci.2010.06.001 |
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