Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method

Detalhes bibliográficos
Autor(a) principal: Santos, Carla
Data de Publicação: 2014
Outros Autores: Silva, Carla J. S. M., Büttel, Zsófia, Guimarães, Rodrigo, Pereira, Sara B., Tamagnini, Paula, Zille, Andrea
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/25257
Resumo: A series of polyvinyl alcohol (PVA), PVA/chitosan (CS) and PVA/cyanobacterial extracellular polymeric substances (EPS) blended nanofibrous membranes were produced by electrospinning using a microfiltration poly(vinylidene fluoride) (PVDF) basal membrane, for potential applications in water filtration. Nanofibres were obtained from solutions of 20% (w/w) PVA with 1% (w/w) CS or EPS, using a weight ratio of 60/40. Blended nanofibres have shown a smooth morphology, no beads formation and diameters between 50 and 130 nm. Thermo-mechanical analysis demonstrated that there were inter and/or intramolecular hydrogen bonds between the molecules of PVA/CS and PVA/EPS in the blends. The electrospun blended PVA/EPS membrane showed better tensile mechanical properties when compared with PVA and PVA/CS, and resisted more against disintegration in the temperature range between 10 and 50 °C. Finally, the blended membranes have shown an increase in chromium binding capacity of 5%. This is the first successful report of a blended membrane of electrospinned cyanobacterial polysaccharide with PVA.
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spelling Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning methodPolyvinyl alcohol (PVA)ChitosanCyanobacteriaExtracellular polymeric substances (EPS)MembraneElectrospinningFiltrationChitosan (CS)Science & TechnologyA series of polyvinyl alcohol (PVA), PVA/chitosan (CS) and PVA/cyanobacterial extracellular polymeric substances (EPS) blended nanofibrous membranes were produced by electrospinning using a microfiltration poly(vinylidene fluoride) (PVDF) basal membrane, for potential applications in water filtration. Nanofibres were obtained from solutions of 20% (w/w) PVA with 1% (w/w) CS or EPS, using a weight ratio of 60/40. Blended nanofibres have shown a smooth morphology, no beads formation and diameters between 50 and 130 nm. Thermo-mechanical analysis demonstrated that there were inter and/or intramolecular hydrogen bonds between the molecules of PVA/CS and PVA/EPS in the blends. The electrospun blended PVA/EPS membrane showed better tensile mechanical properties when compared with PVA and PVA/CS, and resisted more against disintegration in the temperature range between 10 and 50 °C. Finally, the blended membranes have shown an increase in chromium binding capacity of 5%. This is the first successful report of a blended membrane of electrospinned cyanobacterial polysaccharide with PVA.This work was funded by FEDER funds through the Operational Competitiveness Programme - COMPETE and by National Funds through FCT - Fundacao para a Ciencia e a Tecnologia under the projects FCOMP-01-0124-FEDER-022718 (PEst-C/SAU/LA0002/2011), FCOMP-01-0124-FEDER-009389 (PTDC/CTM/100627/2008) and FCOMP-01-0124-FEDER-009697 (PTDC/EBB-EBI/099662/2008), and Grants SFRH/BPD/37045/2007 and SFRH/BPD/72400/2010.ElsevierUniversidade do MinhoSantos, CarlaSilva, Carla J. S. M.Büttel, ZsófiaGuimarães, RodrigoPereira, Sara B.Tamagnini, PaulaZille, Andrea20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/25257engCarla Santos, Carla J. Silva, Zsófia Büttel, Rodrigo Guimarães, Sara B. Pereira, Paula Tamagnini, Andrea Zille, Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method, Carbohydrate Polymers, Volume 99, 2 January 2014, Pages 584-592, ISSN 0144-8617, http://dx.doi.org/10.1016/j.carbpol.2013.09.008.0144-861710.1016/j.carbpol.2013.09.00824274547http://www.sciencedirect.com/science/article/pii/S0144861713008989#info: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:RCAAP2023-07-21T12:07:43Zoai:repositorium.sdum.uminho.pt:1822/25257Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:58:44.869686Repositório 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 Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
title Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
spellingShingle Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
Santos, Carla
Polyvinyl alcohol (PVA)
Chitosan
Cyanobacteria
Extracellular polymeric substances (EPS)
Membrane
Electrospinning
Filtration
Chitosan (CS)
Science & Technology
title_short Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
title_full Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
title_fullStr Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
title_full_unstemmed Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
title_sort Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method
author Santos, Carla
author_facet Santos, Carla
Silva, Carla J. S. M.
Büttel, Zsófia
Guimarães, Rodrigo
Pereira, Sara B.
Tamagnini, Paula
Zille, Andrea
author_role author
author2 Silva, Carla J. S. M.
Büttel, Zsófia
Guimarães, Rodrigo
Pereira, Sara B.
Tamagnini, Paula
Zille, Andrea
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Santos, Carla
Silva, Carla J. S. M.
Büttel, Zsófia
Guimarães, Rodrigo
Pereira, Sara B.
Tamagnini, Paula
Zille, Andrea
dc.subject.por.fl_str_mv Polyvinyl alcohol (PVA)
Chitosan
Cyanobacteria
Extracellular polymeric substances (EPS)
Membrane
Electrospinning
Filtration
Chitosan (CS)
Science & Technology
topic Polyvinyl alcohol (PVA)
Chitosan
Cyanobacteria
Extracellular polymeric substances (EPS)
Membrane
Electrospinning
Filtration
Chitosan (CS)
Science & Technology
description A series of polyvinyl alcohol (PVA), PVA/chitosan (CS) and PVA/cyanobacterial extracellular polymeric substances (EPS) blended nanofibrous membranes were produced by electrospinning using a microfiltration poly(vinylidene fluoride) (PVDF) basal membrane, for potential applications in water filtration. Nanofibres were obtained from solutions of 20% (w/w) PVA with 1% (w/w) CS or EPS, using a weight ratio of 60/40. Blended nanofibres have shown a smooth morphology, no beads formation and diameters between 50 and 130 nm. Thermo-mechanical analysis demonstrated that there were inter and/or intramolecular hydrogen bonds between the molecules of PVA/CS and PVA/EPS in the blends. The electrospun blended PVA/EPS membrane showed better tensile mechanical properties when compared with PVA and PVA/CS, and resisted more against disintegration in the temperature range between 10 and 50 °C. Finally, the blended membranes have shown an increase in chromium binding capacity of 5%. This is the first successful report of a blended membrane of electrospinned cyanobacterial polysaccharide with PVA.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
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/1822/25257
url http://hdl.handle.net/1822/25257
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Carla Santos, Carla J. Silva, Zsófia Büttel, Rodrigo Guimarães, Sara B. Pereira, Paula Tamagnini, Andrea Zille, Preparation and characterization of polysaccharides/PVA blend nanofibrous membranes by electrospinning method, Carbohydrate Polymers, Volume 99, 2 January 2014, Pages 584-592, ISSN 0144-8617, http://dx.doi.org/10.1016/j.carbpol.2013.09.008.
0144-8617
10.1016/j.carbpol.2013.09.008
24274547
http://www.sciencedirect.com/science/article/pii/S0144861713008989#
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 Elsevier
publisher.none.fl_str_mv Elsevier
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
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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
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