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Effect of in Vitro Enzymatic Degradation on 3D Printed Poly(ε-Caprolactone) Scaffolds: Morphological, Chemical and Mechanical Properties

2017-05-04Journal article Open access
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datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorFerreira, Joana
dc.contributor.authorGloria, Antonio
dc.contributor.authorCometa, Stefania
dc.contributor.authorCoelho, Jorge F. J.
dc.contributor.authorDomingos, Marco
dc.date.accessioned2026-01-12T14:06:25Z
dc.date.available2026-01-12T14:06:25Z
dc.date.issued2017-05-04
dc.description.abstractBackground: In recent years, the tissue engineering (TE) field has significantly benefited from advanced techniques such as additive manufacturing (AM), for the design of customized 3D scaffolds with the aim of guided tissue repair. Among the wide range of materials available to biomanufacture 3D scaffolds, poly(ε-caprolactone) (PCL) clearly arises as the synthetic polymer with the greatest potential, due to its unique properties – namely, biocompatibility, biodegradability, thermal and chemical stability and processability. This study aimed for the first time to investigate the effect of pore geometry on the in vitro enzymatic chain cleavage mechanism of PCL scaffolds manufactured by the AM extrusion process. Methods: Methods: Morphological properties of 3D printed PCL scaffolds before and after degradation were evaluated using Scanning Electron Microscopy (SEM) and micro-computed tomography (μ-CT). Differential Scanning Calorimetry (DSC) was employed to determine possible variations in the crystallinity of the scaffolds during the degradation period. The molecular weight was assessed using Size Exclusion Chromatography (SEC) while the mechanical properties were investigated under static compression conditions. Results: Morphological results suggested a uniform reduction of filament diameter, while increasing the scaffolds’ porosity. DSC analysis revealed and increment in the crystallinity degree while the molecular weight, evaluated through SEC, remained almost constant during the incubation period (25 days). Mechanical analysis highlighted a decrease in the compressive modulus and maximum stress over time, probably related to the significant weight loss of the scaffolds. Conclusions: All of these results suggest that PCL scaffolds undergo enzymatic degradation through a surface erosion mechanism, which leads to significant variations in mechanical, physical and chemical properties, but which has little influence on pore geometry.eng
dc.identifier.citationFerreira J, Gloria A, Cometa S, Coelho JFJ, Domingos M. Effect of in vitro enzymatic degradation on 3D printed poly(ε-caprolactone) scaffolds: morphological, chemical and mechanical properties. J Appl Biomater Funct Mater. 2017 Jul 27;15(3):e185-e195. doi: 10.5301/jabfm.5000363
dc.identifier.doi10.5301/jabfm.5000363
dc.identifier.issn2280-8000
dc.identifier.issn2280-8000
dc.identifier.urihttp://hdl.handle.net/10400.8/15288
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSAGE Publications
dc.relationProject reference: 318553
dc.relation.hasversionhttps://journals.sagepub.com/doi/pdf/10.5301/jabfm.5000363
dc.relation.ispartofJournal of Applied Biomaterials & Functional Materials
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBiomanufacturing
dc.subjectEnzymatic degradation
dc.subjectPolycaprolactone
dc.subjectScaffolds
dc.subjectTissue engineering
dc.titleEffect of in Vitro Enzymatic Degradation on 3D Printed Poly(ε-Caprolactone) Scaffolds: Morphological, Chemical and Mechanical Propertieseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage195
oaire.citation.issue3
oaire.citation.startPage185
oaire.citation.titleJournal of Applied Biomaterials & Functional Materials
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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