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Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications

2023-12-31Artigo científico Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorLima, Tielidy A. de M. de
dc.contributor.authorLima, Gabriel Goetten de
dc.contributor.authorMunir, Nimra
dc.contributor.authorCoutinho, Joana Raquel Teixeira
dc.contributor.authorMitchell, Geoffrey Robert
dc.contributor.authorMagalhães, Washington L. E.
dc.contributor.authorNugent, Michael J. D.
dc.date.accessioned2026-09-11T17:14:53Z
dc.date.available2026-09-11T17:14:53Z
dc.date.issued2023-12-31
dc.description.abstractRhododendron ponticum is an invasive species that spreads rapidly and is described as one of the biggest threats to peatlands in Ireland. This study offers an innovative approach to utilizing Rhododendron waste. Initially, sawdust was submitted to a bleaching treatment and the nanofibrillated cellulose (NFC) was obtained using two different methods: ultra-fine friction grinding and twin-screw extrusion with the assistance of TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) pre-treatment. The samples processed through twin-screw extrusion exhibited the presence of NFC at five intervals, as confirmed by TEM analysis. However, these samples displayed a higher diameter deviation compared to those processed through grinding alone. Notably, after 20 extrusion steps, the NFC diameter became more uniform, reaching approximately 35 nm. Sedimentation tests showed that extrusion produced more homogeneous cellulose size than the grinder method. However, FTIR characterization for the samples showed a unique band related to C-O-C glycosidic linkage. The results showed that grinding breaks these groups resulting in crystallinity values lower than extrusion, 50 % compared 60 %. Therefore, NFC with 20 steps by grinding was blended with polycaprolactone to produce a 3D scaffold using a 3D printer at different ratios of 1–5 % addition. The effect of 1 % of NFC was unique showing significant enhanced mechanical properties compared to pure polycaprolactone (PCL), additionally, the NFC does not exhibit toxicity so these materials show promise for biomedical applications.eng
dc.description.sponsorshipThe authors acknowledge the support of the Higher Education Authority and The Department of Further and Higher Education, Research, Innovation and Science. The authors acknowledge Sean Garvey from GMIT for providing the Rhododendron samples.
dc.identifier.citationTielidy A. de M. de Lima, Gabriel Goetten de Lima, Nimra Munir, Joana Raquel Teixeira Coutinho, Geoffrey Robert Mitchell, Washington L.E. Magalhães, Michael J.D. Nugent, Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications, International Journal of Biological Macromolecules, Volume 253, Part 1, 2023, 126556, ISSN 0141-8130, https://doi.org/10.1016/j.ijbiomac.2023.126556.
dc.identifier.doi10.1016/j.ijbiomac.2023.126556
dc.identifier.eissn1879-0003
dc.identifier.issn0141-8130
dc.identifier.urihttp://hdl.handle.net/10400.8/16865
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0141813023034529?via%3Dihub
dc.relation.ispartofInternational Journal of Biological Macromolecules
dc.relation.ispartofseriesI
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectInvasive species
dc.subjectPlant-based materials
dc.subjectUltra-fine friction grinder
dc.subjectExtrusion
dc.titleNanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applicationseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage11
oaire.citation.startPage1
oaire.citation.titleInternational Journal of Biological Macromolecules
oaire.citation.volume253
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCoutinho
person.familyNameMitchell
person.givenNameJoana
person.givenNameGeoffrey
person.identifier166356
person.identifier.ciencia-idE41A-ABDD-1FC7
person.identifier.orcid0000-0002-1571-6904
person.identifier.orcid0000-0001-7977-7610
person.identifier.scopus-author-id7403103397
relation.isAuthorOfPublicationf0de55ca-e4f1-4a32-a045-560983ab62ed
relation.isAuthorOfPublication48c8066b-023e-4405-b462-49d28af000d1
relation.isAuthorOfPublication.latestForDiscoveryf0de55ca-e4f1-4a32-a045-560983ab62ed

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Rhododendron ponticum is an invasive species that spreads rapidly and is described as one of the biggest threats to peatlands in Ireland. This study offers an innovative approach to utilizing Rhododendron waste. Initially, sawdust was submitted to a bleaching treatment and the nanofibrillated cellulose (NFC) was obtained using two different methods: ultra-fine friction grinding and twin-screw extrusion with the assistance of TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) pre-treatment. The samples processed through twin-screw extrusion exhibited the presence of NFC at five intervals, as confirmed by TEM analysis. However, these samples displayed a higher diameter deviation compared to those processed through grinding alone. Notably, after 20 extrusion steps, the NFC diameter became more uniform, reaching approximately 35 nm. Sedimentation tests showed that extrusion produced more homogeneous cellulose size than the grinder method. However, FTIR characterization for the samples showed a unique band related to C-O-C glycosidic linkage. The results showed that grinding breaks these groups resulting in crystallinity values lower than extrusion, 50 % compared 60 %. Therefore, NFC with 20 steps by grinding was blended with polycaprolactone to produce a 3D scaffold using a 3D printer at different ratios of 1–5 % addition. The effect of 1 % of NFC was unique showing significant enhanced mechanical properties compared to pure polycaprolactone (PCL), additionally, the NFC does not exhibit toxicity so these materials show promise for biomedical applications.
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