Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications
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/1822/72591 |
Resumo: | In this work, polymer nanocomposite films based on poly(L-lactic acid) (PLLA) were reinforced with mesoporous silica nanoparticles, mesoporous cellular foam (MCF) and Santa Barbara amorphous-15 (SBA). PLLA is a biobased aliphatic polyester, that possesses excellent thermomechanical properties, and has already been commercialized for packaging applications. The aim was to utilize nanoparticles that have already been established as nanocarriers to enhance the mechanical and thermal properties of PLLA. Since the introduction of antibacterial properties has become an emerging trend in packaging applications, to achieve an effective antimicrobial activity, micro/nano 3D micropillars decorated with cone- and needle-shaped nanostructures were implemented on the surface of the films by means of thermal nanoimprint lithography (t-NIL), a novel and feasible fabrication technique with multiple industrial applications. The materials were characterized regarding their composition and crystallinity using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD), respectively, and their thermal properties using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Their mechanical properties were examined by the nanoindentation technique, while the films’ antimicrobial activity against the bacteria <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> strains was tested in vitro. The results demonstrated the successful production of nanocomposite PLLA films, which exhibited improved mechanical and thermal properties compared to the pristine material, as well as notable antibacterial activity, setting new groundwork for the potential development of biobased smart packaging materials. |
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Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applicationsPoly(L-lactic acid)Biobased polymersMesoporous silicaNanocomposite filmsNanoimprint lithographyAntibacterial propertiesSmart packagingIn this work, polymer nanocomposite films based on poly(L-lactic acid) (PLLA) were reinforced with mesoporous silica nanoparticles, mesoporous cellular foam (MCF) and Santa Barbara amorphous-15 (SBA). PLLA is a biobased aliphatic polyester, that possesses excellent thermomechanical properties, and has already been commercialized for packaging applications. The aim was to utilize nanoparticles that have already been established as nanocarriers to enhance the mechanical and thermal properties of PLLA. Since the introduction of antibacterial properties has become an emerging trend in packaging applications, to achieve an effective antimicrobial activity, micro/nano 3D micropillars decorated with cone- and needle-shaped nanostructures were implemented on the surface of the films by means of thermal nanoimprint lithography (t-NIL), a novel and feasible fabrication technique with multiple industrial applications. The materials were characterized regarding their composition and crystallinity using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD), respectively, and their thermal properties using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Their mechanical properties were examined by the nanoindentation technique, while the films’ antimicrobial activity against the bacteria <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> strains was tested in vitro. The results demonstrated the successful production of nanocomposite PLLA films, which exhibited improved mechanical and thermal properties compared to the pristine material, as well as notable antibacterial activity, setting new groundwork for the potential development of biobased smart packaging materials.This work was funded from the European Union’s Horizon 2020 Research and Innovation Program under Grant Agreement No. 952941 (BIOMAC Project). Also, ICN2 is supported by the Severo Ochoa Program from the Spanish Research Agency (AEI, grant no. SEV-2017-0706) and by the CERCA Program/Generalitat de Catalunya.Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoPsochia, EleniPapadopoulos, LazarosGkiliopoulos, Dimitrios J.Francone, AchilleGrigora, Maria-EiriniTzetzis, DimitriosCastro, Joana Isabel Martins Cosme VieiraNeves, N. M.Triantafyllidis, Konstantinos S.Torres, Clivia M. SotomayorKehagias, NikolaosBikiaris, Dimitrios N.2021-03-112021-03-11T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/72591engPsochia, E.; Papadopoulos, L.; Gkiliopoulos, D.J.; Francone, A.; Grigora, M.-E.; Tzetzis, D.; de Castro, J.V.; Neves, N.M.; Triantafyllidis, K.S.; Torres, C.M.S.; Kehagias, N.; Bikiaris, D.N. Bottom-Up Development of Nanoimprinted PLLA Composite Films with Enhanced Antibacterial Properties for Smart Packaging Applications. Macromol 2021, 1, 49-63. https://doi.org/10.3390/macromol10100052673-620910.3390/macromol1010005https://www.mdpi.com/2673-6209/1/1/5info: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:RCAAP2023-07-21T12:29:48Zoai:repositorium.sdum.uminho.pt:1822/72591Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:24:51.040751Repositório 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 |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
title |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
spellingShingle |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications Psochia, Eleni Poly(L-lactic acid) Biobased polymers Mesoporous silica Nanocomposite films Nanoimprint lithography Antibacterial properties Smart packaging |
title_short |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
title_full |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
title_fullStr |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
title_full_unstemmed |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
title_sort |
Bottom-up development of nanoimprinted PLLA composite films with enhanced antibacterial properties for smart packaging applications |
author |
Psochia, Eleni |
author_facet |
Psochia, Eleni Papadopoulos, Lazaros Gkiliopoulos, Dimitrios J. Francone, Achille Grigora, Maria-Eirini Tzetzis, Dimitrios Castro, Joana Isabel Martins Cosme Vieira Neves, N. M. Triantafyllidis, Konstantinos S. Torres, Clivia M. Sotomayor Kehagias, Nikolaos Bikiaris, Dimitrios N. |
author_role |
author |
author2 |
Papadopoulos, Lazaros Gkiliopoulos, Dimitrios J. Francone, Achille Grigora, Maria-Eirini Tzetzis, Dimitrios Castro, Joana Isabel Martins Cosme Vieira Neves, N. M. Triantafyllidis, Konstantinos S. Torres, Clivia M. Sotomayor Kehagias, Nikolaos Bikiaris, Dimitrios N. |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Psochia, Eleni Papadopoulos, Lazaros Gkiliopoulos, Dimitrios J. Francone, Achille Grigora, Maria-Eirini Tzetzis, Dimitrios Castro, Joana Isabel Martins Cosme Vieira Neves, N. M. Triantafyllidis, Konstantinos S. Torres, Clivia M. Sotomayor Kehagias, Nikolaos Bikiaris, Dimitrios N. |
dc.subject.por.fl_str_mv |
Poly(L-lactic acid) Biobased polymers Mesoporous silica Nanocomposite films Nanoimprint lithography Antibacterial properties Smart packaging |
topic |
Poly(L-lactic acid) Biobased polymers Mesoporous silica Nanocomposite films Nanoimprint lithography Antibacterial properties Smart packaging |
description |
In this work, polymer nanocomposite films based on poly(L-lactic acid) (PLLA) were reinforced with mesoporous silica nanoparticles, mesoporous cellular foam (MCF) and Santa Barbara amorphous-15 (SBA). PLLA is a biobased aliphatic polyester, that possesses excellent thermomechanical properties, and has already been commercialized for packaging applications. The aim was to utilize nanoparticles that have already been established as nanocarriers to enhance the mechanical and thermal properties of PLLA. Since the introduction of antibacterial properties has become an emerging trend in packaging applications, to achieve an effective antimicrobial activity, micro/nano 3D micropillars decorated with cone- and needle-shaped nanostructures were implemented on the surface of the films by means of thermal nanoimprint lithography (t-NIL), a novel and feasible fabrication technique with multiple industrial applications. The materials were characterized regarding their composition and crystallinity using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD), respectively, and their thermal properties using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Their mechanical properties were examined by the nanoindentation technique, while the films’ antimicrobial activity against the bacteria <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> strains was tested in vitro. The results demonstrated the successful production of nanocomposite PLLA films, which exhibited improved mechanical and thermal properties compared to the pristine material, as well as notable antibacterial activity, setting new groundwork for the potential development of biobased smart packaging materials. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-11 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/1822/72591 |
url |
http://hdl.handle.net/1822/72591 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Psochia, E.; Papadopoulos, L.; Gkiliopoulos, D.J.; Francone, A.; Grigora, M.-E.; Tzetzis, D.; de Castro, J.V.; Neves, N.M.; Triantafyllidis, K.S.; Torres, C.M.S.; Kehagias, N.; Bikiaris, D.N. Bottom-Up Development of Nanoimprinted PLLA Composite Films with Enhanced Antibacterial Properties for Smart Packaging Applications. Macromol 2021, 1, 49-63. https://doi.org/10.3390/macromol1010005 2673-6209 10.3390/macromol1010005 https://www.mdpi.com/2673-6209/1/1/5 |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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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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1799132730269630464 |