Antimicrobial Ceramic Filters for Water Bio-Decontamination
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/47299 |
Resumo: | Bio-contamination of water through biofouling, which involves the natural colonization of submerged surfaces by waterborne organisms, is a global socio-economic concern, allied to premature materials bio-corrosion and high human health risks. Most effective strategies release toxic and persistent disinfectant compounds into the aquatic medium, causing environmental problems and leading to more stringent legislation regarding their use. To minimize these side effects, a newly non-biocide-release coating strategy suitable for several polymeric matrices, namely polydimethylsiloxane and polyurethane (PU)-based coatings, was used to generate antimicrobial ceramic filters for water bio-decontamination. The best results, in terms of antimicrobial activity and biocide release, showed an expressed delay and a decrease of up to 66% in the population of methicillin-resistant Staphylococcus aureus bacteria on ceramic filters coated with polyurethane (PU)-based coatings containing grafted Econea biocide, and no evidence of biocide release after being submerged for 45 days in water. Biocidal PU-based surfaces were also less prone to Enterococcus faecalis biofilm formation under flow conditions with an average reduction of 60% after 48 h compared to a pristine PU-based surface. Biocidal coated filters show to be a potential eco-friendly alternative for minimizing the environmental risks associated with biofouling formation in water-based industrial systems. |
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Antimicrobial Ceramic Filters for Water Bio-DecontaminationMicro-foulersBallast watersCordierite monolithsNon-biocide release coatingDynamic biofilm assaysAntimicrobial filtrationBio-contamination of water through biofouling, which involves the natural colonization of submerged surfaces by waterborne organisms, is a global socio-economic concern, allied to premature materials bio-corrosion and high human health risks. Most effective strategies release toxic and persistent disinfectant compounds into the aquatic medium, causing environmental problems and leading to more stringent legislation regarding their use. To minimize these side effects, a newly non-biocide-release coating strategy suitable for several polymeric matrices, namely polydimethylsiloxane and polyurethane (PU)-based coatings, was used to generate antimicrobial ceramic filters for water bio-decontamination. The best results, in terms of antimicrobial activity and biocide release, showed an expressed delay and a decrease of up to 66% in the population of methicillin-resistant Staphylococcus aureus bacteria on ceramic filters coated with polyurethane (PU)-based coatings containing grafted Econea biocide, and no evidence of biocide release after being submerged for 45 days in water. Biocidal PU-based surfaces were also less prone to Enterococcus faecalis biofilm formation under flow conditions with an average reduction of 60% after 48 h compared to a pristine PU-based surface. Biocidal coated filters show to be a potential eco-friendly alternative for minimizing the environmental risks associated with biofouling formation in water-based industrial systems.This research work was supported by national funds through FCT-Foundation for Science and Technology within the scope of research units grants to BioISI (UIDB/04046/2020 and UIDP/04046/2020), and also by Base Funding-UIDB/00511/2020 of the Laboratory for Process Engineering, Environment, Biotechnology, and Energy-LEPABE-funded by national funds through the FCT/MCTES (PIDDAC). O. Ferreira also acknowledges the Grant PD/BD/128370/2017. L.C.G. and E.R.S. thank the Portuguese Foundation for Science and Technology (FCT) for their work contracts through the Scientific Employment Stimulus-Individual Call (CEECIND/01700/2017 and CEECIND/03530/2018).MDPIRepositório da Universidade de LisboaFerreira, OlgaRijo, PatriciaGomes, JoãoSantos, RicardoMonteiro, SílviaGuedes, RitaSerralheiro, Maria LuísaGomes, MarisaGomes, Luciana C.Mergulhão, Filipe J.Silva, Elisabete R.2021-04-08T23:55:41Z2021-03-112021-04-08T23:55:39Z2021-03-11T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10451/47299engFerreira O, Rijo P, Gomes J, Santos R, Monteiro S, Guedes R, et al. Antimicrobial Ceramic Filters for Water Bio-Decontamination. Coatings [Internet]. 2021 Mar 11;11(3):323. Available from: http://dx.doi.org/10.3390/coatings11030323cv-prod-247062510.3390/coatings11030323info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:50:08Zoai:repositorio.ul.pt:10451/47299Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:59:22.865681Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
title |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
spellingShingle |
Antimicrobial Ceramic Filters for Water Bio-Decontamination Ferreira, Olga Micro-foulers Ballast waters Cordierite monoliths Non-biocide release coating Dynamic biofilm assays Antimicrobial filtration |
title_short |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
title_full |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
title_fullStr |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
title_full_unstemmed |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
title_sort |
Antimicrobial Ceramic Filters for Water Bio-Decontamination |
author |
Ferreira, Olga |
author_facet |
Ferreira, Olga Rijo, Patricia Gomes, João Santos, Ricardo Monteiro, Sílvia Guedes, Rita Serralheiro, Maria Luísa Gomes, Marisa Gomes, Luciana C. Mergulhão, Filipe J. Silva, Elisabete R. |
author_role |
author |
author2 |
Rijo, Patricia Gomes, João Santos, Ricardo Monteiro, Sílvia Guedes, Rita Serralheiro, Maria Luísa Gomes, Marisa Gomes, Luciana C. Mergulhão, Filipe J. Silva, Elisabete R. |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Ferreira, Olga Rijo, Patricia Gomes, João Santos, Ricardo Monteiro, Sílvia Guedes, Rita Serralheiro, Maria Luísa Gomes, Marisa Gomes, Luciana C. Mergulhão, Filipe J. Silva, Elisabete R. |
dc.subject.por.fl_str_mv |
Micro-foulers Ballast waters Cordierite monoliths Non-biocide release coating Dynamic biofilm assays Antimicrobial filtration |
topic |
Micro-foulers Ballast waters Cordierite monoliths Non-biocide release coating Dynamic biofilm assays Antimicrobial filtration |
description |
Bio-contamination of water through biofouling, which involves the natural colonization of submerged surfaces by waterborne organisms, is a global socio-economic concern, allied to premature materials bio-corrosion and high human health risks. Most effective strategies release toxic and persistent disinfectant compounds into the aquatic medium, causing environmental problems and leading to more stringent legislation regarding their use. To minimize these side effects, a newly non-biocide-release coating strategy suitable for several polymeric matrices, namely polydimethylsiloxane and polyurethane (PU)-based coatings, was used to generate antimicrobial ceramic filters for water bio-decontamination. The best results, in terms of antimicrobial activity and biocide release, showed an expressed delay and a decrease of up to 66% in the population of methicillin-resistant Staphylococcus aureus bacteria on ceramic filters coated with polyurethane (PU)-based coatings containing grafted Econea biocide, and no evidence of biocide release after being submerged for 45 days in water. Biocidal PU-based surfaces were also less prone to Enterococcus faecalis biofilm formation under flow conditions with an average reduction of 60% after 48 h compared to a pristine PU-based surface. Biocidal coated filters show to be a potential eco-friendly alternative for minimizing the environmental risks associated with biofouling formation in water-based industrial systems. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-08T23:55:41Z 2021-03-11 2021-04-08T23:55:39Z 2021-03-11T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/47299 |
url |
http://hdl.handle.net/10451/47299 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ferreira O, Rijo P, Gomes J, Santos R, Monteiro S, Guedes R, et al. Antimicrobial Ceramic Filters for Water Bio-Decontamination. Coatings [Internet]. 2021 Mar 11;11(3):323. Available from: http://dx.doi.org/10.3390/coatings11030323 cv-prod-2470625 10.3390/coatings11030323 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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