Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
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/1822/76366 |
Resumo: | Tanned leather can be attacked by microorganisms. To ensure resistance to bacteria on leather surfaces, protection solutions need to be developed, addressing both environmental issues and economic viability. In this work, chitosan nano/microparticles (CNP) and chitosan/silver nano/microstructures (CSNP), containing silver nanoparticles around 17 nm size, were incorporated into leather, obtained from the industrial process. Low loads of chitosan-based nano/microformulations, 0.1% mass ratio, resulted in total bacteria reduction (100%) after 2 h towards Gram-positive Staphylococcus aureus, both with CNP and CSNP coatings. Otherwise, comparable tests with the Gram-negative bacteria, Klebsiella pneumoniae, Escherichia coli, showed no significant improvement under the coating acidic conditions. The antimicrobial activity was evaluated by standard test methods: (1) inhibition halo and (2) dynamic contact conditions. The developed protection of leather either with CNP or CSNP is much higher than the one obtained with a simple chitosan solution. |
id |
RCAP_d53a64b8e21401d6666d662db9908bf9 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/76366 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industryChitosan nanostructuresSilver nanoparticlesAntimicrobial activityLeatherTanning industryScience & TechnologyTanned leather can be attacked by microorganisms. To ensure resistance to bacteria on leather surfaces, protection solutions need to be developed, addressing both environmental issues and economic viability. In this work, chitosan nano/microparticles (CNP) and chitosan/silver nano/microstructures (CSNP), containing silver nanoparticles around 17 nm size, were incorporated into leather, obtained from the industrial process. Low loads of chitosan-based nano/microformulations, 0.1% mass ratio, resulted in total bacteria reduction (100%) after 2 h towards Gram-positive Staphylococcus aureus, both with CNP and CSNP coatings. Otherwise, comparable tests with the Gram-negative bacteria, Klebsiella pneumoniae, Escherichia coli, showed no significant improvement under the coating acidic conditions. The antimicrobial activity was evaluated by standard test methods: (1) inhibition halo and (2) dynamic contact conditions. The developed protection of leather either with CNP or CSNP is much higher than the one obtained with a simple chitosan solution.This study was supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020, UIDB/04650/2020, UIDB/00686/2020 units, TecMinho-Interface University-Society, and NBS Curtumes, Lda.info:eu-repo/semantics/publishedVersionMDPI PublishingUniversidade do MinhoFreitas, David SilvaTeixeira, Maria Pilar AraújoPinheiro, Inês BragaCastanheira, Elisabete M. S.Coutinho, Paulo J. G.Alves, Maria J.2022-02-252022-02-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/76366engFreitas, David; Teixeira, Pilar; Pinheiro, I.; Castanheira, Elisabete M. S.; Coutinho, Paulo J. G.; Alves, Maria J., Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry. Materials, 15(5), 1750, 20221996-194410.3390/ma15051750http://www.mdpi.com/journal/materialsinfo: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:RCAAP2023-07-21T12:14:03Zoai:repositorium.sdum.uminho.pt:1822/76366Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:06:17.042575Repositório 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 |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
title |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
spellingShingle |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry Freitas, David Silva Chitosan nanostructures Silver nanoparticles Antimicrobial activity Leather Tanning industry Science & Technology |
title_short |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
title_full |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
title_fullStr |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
title_full_unstemmed |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
title_sort |
Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry |
author |
Freitas, David Silva |
author_facet |
Freitas, David Silva Teixeira, Maria Pilar Araújo Pinheiro, Inês Braga Castanheira, Elisabete M. S. Coutinho, Paulo J. G. Alves, Maria J. |
author_role |
author |
author2 |
Teixeira, Maria Pilar Araújo Pinheiro, Inês Braga Castanheira, Elisabete M. S. Coutinho, Paulo J. G. Alves, Maria J. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Freitas, David Silva Teixeira, Maria Pilar Araújo Pinheiro, Inês Braga Castanheira, Elisabete M. S. Coutinho, Paulo J. G. Alves, Maria J. |
dc.subject.por.fl_str_mv |
Chitosan nanostructures Silver nanoparticles Antimicrobial activity Leather Tanning industry Science & Technology |
topic |
Chitosan nanostructures Silver nanoparticles Antimicrobial activity Leather Tanning industry Science & Technology |
description |
Tanned leather can be attacked by microorganisms. To ensure resistance to bacteria on leather surfaces, protection solutions need to be developed, addressing both environmental issues and economic viability. In this work, chitosan nano/microparticles (CNP) and chitosan/silver nano/microstructures (CSNP), containing silver nanoparticles around 17 nm size, were incorporated into leather, obtained from the industrial process. Low loads of chitosan-based nano/microformulations, 0.1% mass ratio, resulted in total bacteria reduction (100%) after 2 h towards Gram-positive Staphylococcus aureus, both with CNP and CSNP coatings. Otherwise, comparable tests with the Gram-negative bacteria, Klebsiella pneumoniae, Escherichia coli, showed no significant improvement under the coating acidic conditions. The antimicrobial activity was evaluated by standard test methods: (1) inhibition halo and (2) dynamic contact conditions. The developed protection of leather either with CNP or CSNP is much higher than the one obtained with a simple chitosan solution. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-02-25 2022-02-25T00:00:00Z |
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/1822/76366 |
url |
http://hdl.handle.net/1822/76366 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Freitas, David; Teixeira, Pilar; Pinheiro, I.; Castanheira, Elisabete M. S.; Coutinho, Paulo J. G.; Alves, Maria J., Chitosan nano/microformulations for antimicrobial protection of leather with a potential impact in tanning industry. Materials, 15(5), 1750, 2022 1996-1944 10.3390/ma15051750 http://www.mdpi.com/journal/materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI Publishing |
publisher.none.fl_str_mv |
MDPI Publishing |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799132477453762560 |