PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/app.50130 http://hdl.handle.net/11449/208079 |
Resumo: | The adhesion of microorganisms on biomaterials can impair its effective application. The addition of antimicrobial agents is a promising alternative to overcome this limitation. In this work, films of polycaprolactone (PCL) and nanostructured β-AgVO3 (SV) were produced by solvent casting with 0.1, 0.5, and 1.0 wt% of SV. The effect of SV on the structure of PCL was investigate using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Raman spectroscopy, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). The antimicrobial activity of the films against Staphylococcus aureus and Escherichia coli was evaluated by the agar diffusion method and by direct contact test. FTIR confirmed the presence of SV into the PCL films, with chemical interaction between them. SEM showed that SV nanorods were well dispersed and with good interfacial adhesion with PCL. XRD diffraction and Raman spectroscopy showed that the presence of SV increased the number of nucleation sites, reducing the size of crystallites and increasing the amorphous domains in the PCL matrix, consequently reducing crystallinity. This behavior was confirmed by DSC, which showed a reduction in the crystallinity with increasing SV content. Films with 1 wt% of SV showed antimicrobial activity against Staphylococcus aureus in direct contact test. |
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Repositório Institucional da UNESP |
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PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterialsbiocompatibilitybiomedical applicationsfilmsnanoparticlesnanowires and nanocrystalsThe adhesion of microorganisms on biomaterials can impair its effective application. The addition of antimicrobial agents is a promising alternative to overcome this limitation. In this work, films of polycaprolactone (PCL) and nanostructured β-AgVO3 (SV) were produced by solvent casting with 0.1, 0.5, and 1.0 wt% of SV. The effect of SV on the structure of PCL was investigate using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Raman spectroscopy, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). The antimicrobial activity of the films against Staphylococcus aureus and Escherichia coli was evaluated by the agar diffusion method and by direct contact test. FTIR confirmed the presence of SV into the PCL films, with chemical interaction between them. SEM showed that SV nanorods were well dispersed and with good interfacial adhesion with PCL. XRD diffraction and Raman spectroscopy showed that the presence of SV increased the number of nucleation sites, reducing the size of crystallites and increasing the amorphous domains in the PCL matrix, consequently reducing crystallinity. This behavior was confirmed by DSC, which showed a reduction in the crystallinity with increasing SV content. Films with 1 wt% of SV showed antimicrobial activity against Staphylococcus aureus in direct contact test.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Financiadora de Estudos e ProjetosFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Laboratory of Plasmas and Processes Technological Institute of AeronauticsTechnology Laboratory of Polymers and Biopolymers Federal University of São PauloGenoma Laboratory São José dos Campos Institute of Science and Technology São Paulo State University (UNESP)Genoma Laboratory São José dos Campos Institute of Science and Technology São Paulo State University (UNESP)Financiadora de Estudos e Projetos: 01.13.0328.03FAPESP: 2017/02846-5FAPESP: 2017/24873-4FAPESP: 2018/12035-7Technological Institute of AeronauticsUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)de Menezes, Beatriz Rossi CanutoMontanheiro, Thaís Larissa do AmaralSampaio, Aline da Graça [UNESP]Koga-Ito, Cristiane Yumi [UNESP]Thim, Gilmar PatrocínioMontagna, Larissa Stieven2021-06-25T11:06:00Z2021-06-25T11:06:00Z2021-04-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/app.50130Journal of Applied Polymer Science, v. 138, n. 13, 2021.1097-46280021-8995http://hdl.handle.net/11449/20807910.1002/app.501302-s2.0-8509413535465435631614034210000-0002-2416-2173Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Polymer Scienceinfo:eu-repo/semantics/openAccess2022-03-16T23:11:23Zoai:repositorio.unesp.br:11449/208079Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:00:43.291933Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
title |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
spellingShingle |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials de Menezes, Beatriz Rossi Canuto biocompatibility biomedical applications films nanoparticles nanowires and nanocrystals |
title_short |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
title_full |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
title_fullStr |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
title_full_unstemmed |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
title_sort |
PCL/β-AgVO3 nanocomposites obtained by solvent casting as potential antimicrobial biomaterials |
author |
de Menezes, Beatriz Rossi Canuto |
author_facet |
de Menezes, Beatriz Rossi Canuto Montanheiro, Thaís Larissa do Amaral Sampaio, Aline da Graça [UNESP] Koga-Ito, Cristiane Yumi [UNESP] Thim, Gilmar Patrocínio Montagna, Larissa Stieven |
author_role |
author |
author2 |
Montanheiro, Thaís Larissa do Amaral Sampaio, Aline da Graça [UNESP] Koga-Ito, Cristiane Yumi [UNESP] Thim, Gilmar Patrocínio Montagna, Larissa Stieven |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Technological Institute of Aeronautics Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Menezes, Beatriz Rossi Canuto Montanheiro, Thaís Larissa do Amaral Sampaio, Aline da Graça [UNESP] Koga-Ito, Cristiane Yumi [UNESP] Thim, Gilmar Patrocínio Montagna, Larissa Stieven |
dc.subject.por.fl_str_mv |
biocompatibility biomedical applications films nanoparticles nanowires and nanocrystals |
topic |
biocompatibility biomedical applications films nanoparticles nanowires and nanocrystals |
description |
The adhesion of microorganisms on biomaterials can impair its effective application. The addition of antimicrobial agents is a promising alternative to overcome this limitation. In this work, films of polycaprolactone (PCL) and nanostructured β-AgVO3 (SV) were produced by solvent casting with 0.1, 0.5, and 1.0 wt% of SV. The effect of SV on the structure of PCL was investigate using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Raman spectroscopy, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). The antimicrobial activity of the films against Staphylococcus aureus and Escherichia coli was evaluated by the agar diffusion method and by direct contact test. FTIR confirmed the presence of SV into the PCL films, with chemical interaction between them. SEM showed that SV nanorods were well dispersed and with good interfacial adhesion with PCL. XRD diffraction and Raman spectroscopy showed that the presence of SV increased the number of nucleation sites, reducing the size of crystallites and increasing the amorphous domains in the PCL matrix, consequently reducing crystallinity. This behavior was confirmed by DSC, which showed a reduction in the crystallinity with increasing SV content. Films with 1 wt% of SV showed antimicrobial activity against Staphylococcus aureus in direct contact test. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:06:00Z 2021-06-25T11:06:00Z 2021-04-05 |
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://dx.doi.org/10.1002/app.50130 Journal of Applied Polymer Science, v. 138, n. 13, 2021. 1097-4628 0021-8995 http://hdl.handle.net/11449/208079 10.1002/app.50130 2-s2.0-85094135354 6543563161403421 0000-0002-2416-2173 |
url |
http://dx.doi.org/10.1002/app.50130 http://hdl.handle.net/11449/208079 |
identifier_str_mv |
Journal of Applied Polymer Science, v. 138, n. 13, 2021. 1097-4628 0021-8995 10.1002/app.50130 2-s2.0-85094135354 6543563161403421 0000-0002-2416-2173 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Polymer Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129481589653504 |