Design and fabrication of auxetic PCL nanofiber membranes for biomedical applications

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage340en_US
dc.citation.spage334en_US
dc.citation.volumeNumber81en_US
dc.contributor.authorBhullar, S. K.en_US
dc.contributor.authorRana, D.en_US
dc.contributor.authorLekesiz, H.en_US
dc.contributor.authorBedeloglu, A. C.en_US
dc.contributor.authorKo, J.en_US
dc.contributor.authorCho, Y.en_US
dc.contributor.authorAytac Z.en_US
dc.contributor.authorUyar, Tameren_US
dc.contributor.authorJun, M.en_US
dc.contributor.authorRamalingam, M.en_US
dc.date.accessioned2018-04-12T11:11:09Z
dc.date.available2018-04-12T11:11:09Z
dc.date.issued2017-12en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe main objective of this study was to fabricate poly (ε-caprolactone) (PCL)-based auxetic nanofiber membranes and characterize them for their mechanical and physicochemical properties. As a first step, the PCL nanofibers were fabricated by electrospinning with two different thicknesses of 40 μm (called PCL thin membrane) and 180 μm (called PCL thick membrane). In the second step, they were tailored into auxetic patterns using femtosecond laser cut technique. The physicochemical and mechanical properties of the auxetic nanofiber membranes were studied and compared with the conventional electrospun PCL nanofibers (non-auxetic nanofiber membranes) as a control. The results showed that there were no significant changes observed among them in terms of their chemical functionality and thermal property. However, there was a notable difference observed in the mechanical properties. For instance, the thin auxetic nanofiber membrane showed the magnitude of elongation almost ten times higher than the control, which clearly demonstrates the high flexibility of auxetic nanofiber membranes. This is because that the auxetic nanofiber membranes have lesser rigidity than the control nanofibers under the same load which could be due to the rotational motion of the auxetic structures. The major finding of this study is that the auxetic PCL nanofiber membranes are highly flexible (10-fold higher elongation capacity than the conventional PCL nanofibers) and have tunable mechanical properties. Therefore, the auxetic PCL nanofiber membranes may serve as a potent material in various biomedical applications, in particular, tissue engineering where scaffolds with mechanical cues play a major role.en_US
dc.embargo.release2019-12-01en_US
dc.identifier.doi10.1016/j.msec.2017.08.022en_US
dc.identifier.issn0928-4931
dc.identifier.urihttp://hdl.handle.net/11693/37354
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.msec.2017.08.022en_US
dc.source.titleMaterials Science and Engineering Cen_US
dc.subjectAuxetic nanofiber membranesen_US
dc.subjectBiomedical applicationsen_US
dc.subjectElectrospinningen_US
dc.subjectMechanical behavioren_US
dc.subjectPoly (ε-caprolactone)en_US
dc.subjectElectrospinningen_US
dc.subjectMechanical propertiesen_US
dc.subjectMedical applicationsen_US
dc.subjectMembranesen_US
dc.subjectRigid structuresen_US
dc.subjectScaffolds (biology)en_US
dc.subjectSpinning (fibers)en_US
dc.subjectTissue engineeringen_US
dc.subjectBiomedical applicationsen_US
dc.subjectCaprolactoneen_US
dc.subjectChemical functionalityen_US
dc.subjectMechanical behavioren_US
dc.subjectNanofiber membraneen_US
dc.subjectPhysico-chemical and mechanical propertiesen_US
dc.subjectPhysicochemical propertyen_US
dc.subjectPoly (epsiloncaprolactone)en_US
dc.subjectNanofibersen_US
dc.subjectNanofiberen_US
dc.subjectPolycaprolactoneen_US
dc.subjectPolyesteren_US
dc.subjectTissue engineeringen_US
dc.subjectTissue scaffolden_US
dc.subjectNanofibersen_US
dc.subjectPolyestersen_US
dc.subjectTissue Engineeringen_US
dc.subjectTissue Scaffoldsen_US
dc.titleDesign and fabrication of auxetic PCL nanofiber membranes for biomedical applicationsen_US
dc.typeArticleen_US

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