Shape memory thermoplastic polyurethane/polycaprolactone blend and composite with hydroxyapatite for biomedical application

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dc.contributor.authorPinto L.A.
dc.contributor.authorBackes E.H.
dc.contributor.authorHarb S.V.
dc.contributor.authorPinto G.M.
dc.contributor.authorda Cunha D.A.L.V.
dc.contributor.authorAndrade R.J.E.
dc.contributor.authorFechine G.J.M.
dc.contributor.authorSelistre-de-Araujo H.S.
dc.contributor.authorCosta L.C.
dc.contributor.authorPessan L.A.
dc.date.accessioned2024-03-12T19:07:08Z
dc.date.available2024-03-12T19:07:08Z
dc.date.issued2024
dc.description.abstract© 2023, The Author(s).Depending on its composition, thermoplastic polyurethane (TPU)/polycaprolactone (PCL) blend may present interesting properties for biomedical applications. Here, we have extensively developed and characterized blends of TPU/PCL and composites with 5, 10, and 20 wt% of hydroxyapatite (HA). The thermal, rheological, and mechanical characterizations showed that the blends present an intermediate behavior between pure TPU and PCL. The 75TPU/25PCL blend exhibited the best shape memory performance at temperatures below 50 °C. Filaments of this blend presented a fixation rate of 86.6% and a recovery rate of 73.3% at 50 ℃. The addition of HA had little influence on the shape memory properties; on the other hand, it strengthened the material, reaching elastic modulus values close to 100 MPa. In vitro tests revealed a biocompatible behavior for all blends, and the composite with 10 wt% HA from the 75TPU/25PCL blend demonstrated greater cell proliferation compared to the other composites. Graphical abstract: [Figure not available: see fulltext.]
dc.description.firstpage90
dc.description.issuenumber1
dc.description.lastpage106
dc.description.volume39
dc.identifier.doi10.1557/s43578-023-01172-w
dc.identifier.issn2044-5326
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/33949
dc.relation.ispartofJournal of Materials Research
dc.rightsAcesso Aberto
dc.subject.otherlanguageBiomaterials
dc.subject.otherlanguageComposites
dc.subject.otherlanguageHydroxyapatite
dc.subject.otherlanguagePolycaprolactone
dc.subject.otherlanguageShape memory polymer
dc.subject.otherlanguageThermoplastic polyurethane
dc.titleShape memory thermoplastic polyurethane/polycaprolactone blend and composite with hydroxyapatite for biomedical application
dc.typeArtigo
local.scopus.citations13
local.scopus.eid2-s2.0-85174714436
local.scopus.subjectBiomedical applications
local.scopus.subjectMechanical characterizations
local.scopus.subjectMemory performance
local.scopus.subjectProperty
local.scopus.subjectRheological characterization
local.scopus.subjectShape memory polymers
local.scopus.subjectShape memory thermoplastic polyurethanes
local.scopus.subjectShape-memory
local.scopus.subjectThermal characterization
local.scopus.subjectThermoplastic polyurethanes
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85174714436&origin=inward
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