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3D printing of new biobased unsaturated polyesters by microstereo-thermal-lithography

2014-09-05Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.fosEngenharia e Tecnologia::Biotecnologia Industrial
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorGonçalves, Filipa A. M. M.
dc.contributor.authorCosta, Cátia S. M. F.
dc.contributor.authorFabela, Inês G. P.
dc.contributor.authorFarinha, Dina
dc.contributor.authorFaneca, Henrique
dc.contributor.authorSimões, Pedro N.
dc.contributor.authorSerra, Arménio C.
dc.contributor.authorBártolo, Paulo J.
dc.contributor.authorCoelho, Jorge F. J.
dc.date.accessioned2025-07-03T15:56:51Z
dc.date.available2025-07-03T15:56:51Z
dc.date.issued2014-09-05
dc.description.abstractNew micro three-dimensional (3D) scaffolds using biobased unsaturated polyesters (UPs) were prepared by microstereo-thermal-lithography (μSTLG). This advanced processing technique offers indubitable advantages over traditional printing methods. The accuracy and roughness of the 3D structures were evaluated by scanning electron microscopy and infinite focus microscopy, revealing a suitable roughness for cell attachment. UPs were synthesized by bulk polycondensation between biobased aliphatic diacids (succinic, adipic and sebacic acid) and two different glycols (propylene glycol and diethylene glycol) using fumaric acid as the source of double bonds. The chemical structures of the new oligomers were confirmed by proton nuclear magnetic resonance spectra, attenuated total reflectance Fourier transform infrared spectroscopy and matrix assisted laser desorption/ionization-time of flight mass spectrometry. The thermal and mechanical properties of the UPs were evaluated to determine the influence of the diacid/glycol ratio and the type of diacid in the polyester's properties. In addition an extensive thermal characterization of the polyesters is reported. The data presented in this work opens the possibility for the use of biobased polyesters in additive manufacturing technologies as a route to prepare biodegradable tailor made scaffolds that have potential applications in a tissue engineering area.eng
dc.description.sponsorshipThis research was supported by FCT, Fundação para a Ciência e a Tecnologia, through a PhD Grant (SFRH/BD/71113/2010). The H NMR data were obtained from Rede Nacional de RMN in the Iniversity of Coimbra, Portugal.
dc.identifier.citationGonçalves, F. A., Costa, C. S., Fabela, I. G., Farinha, D., Faneca, H., Simões, P. N., ... & Coelho, J. F. (2014). 3D printing of new biobased unsaturated polyesters by microstereo-thermal-lithography. Biofabrication, 6(3), 035024. DOI: https://doi.org/10.1088/1758-5082/6/3/035024.
dc.identifier.doi10.1088/1758-5082/6/3/035024
dc.identifier.eissn1758-5090
dc.identifier.issn1758-5082
dc.identifier.urihttp://hdl.handle.net/10400.8/13520
dc.language.isoeng
dc.peerreviewedyes
dc.publisherIOP Publishing
dc.relationDEVELOPMENT OF BIOCOMPATIBLE POLYESTERS BASED FORMULATIONS FOR MICROSTEREO-THERMAL-LITHOGRAPHY
dc.relation.hasversionhttps://iopscience.iop.org/article/10.1088/1758-5082/6/3/035024
dc.relation.ispartofBiofabrication
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectunsaturated polyesters
dc.subjectbiocompatibility
dc.subjectstereolithography
dc.subject3D scaffolds
dc.title3D printing of new biobased unsaturated polyesters by microstereo-thermal-lithographyeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDEVELOPMENT OF BIOCOMPATIBLE POLYESTERS BASED FORMULATIONS FOR MICROSTEREO-THERMAL-LITHOGRAPHY
oaire.awardURIhttp://hdl.handle.net/10400.8/13519
oaire.citation.endPage14
oaire.citation.issue3
oaire.citation.startPage1
oaire.citation.titleBiofabrication
oaire.citation.volume6
oaire.fundingStreamFARH
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameBartolo
person.givenNamePaulo
person.identifier203086
person.identifier.ciencia-id5810-9BF9-4522
person.identifier.orcid0000-0003-3683-726X
person.identifier.ridF-2421-2013
person.identifier.scopus-author-id6603353041
relation.isAuthorOfPublicationab44d1ae-46d0-45c2-b19f-200024b5a990
relation.isAuthorOfPublication.latestForDiscoveryab44d1ae-46d0-45c2-b19f-200024b5a990
relation.isProjectOfPublicationfd1f434d-d33b-410f-b1a1-e9c7ecdd43af
relation.isProjectOfPublication.latestForDiscoveryfd1f434d-d33b-410f-b1a1-e9c7ecdd43af

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New micro three-dimensional (3D) scaffolds using biobased unsaturated polyesters (UPs) were prepared by microstereo-thermal-lithography (μSTLG). This advanced processing technique offers indubitable advantages over traditional printing methods. The accuracy and roughness of the 3D structures were evaluated by scanning electron microscopy and infinite focus microscopy, revealing a suitable roughness for cell attachment. UPs were synthesized by bulk polycondensation between biobased aliphatic diacids (succinic, adipic and sebacic acid) and two different glycols (propylene glycol and diethylene glycol) using fumaric acid as the source of double bonds. The chemical structures of the new oligomers were confirmed by proton nuclear magnetic resonance spectra, attenuated total reflectance Fourier transform infrared spectroscopy and matrix assisted laser desorption/ionization-time of flight mass spectrometry. The thermal and mechanical properties of the UPs were evaluated to determine the influence of the diacid/glycol ratio and the type of diacid in the polyester's properties. In addition an extensive thermal characterization of the polyesters is reported. The data presented in this work opens the possibility for the use of biobased polyesters in additive manufacturing technologies as a route to prepare biodegradable tailor made scaffolds that have potential applications in a tissue engineering area.
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