Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications.
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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Format: | Artigo de periódico biblioteca |
Language: | eng |
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2024-06-26
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Subjects: | Plant-based materials, Ultra-fine friction grinder, Irlanda, Celulose nanofibrilada, Biomedicina, Invasive species, Extrusion, Rhododendron ponticum, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165158 http://dx.doi.org/10.1016/j.ijbiomac.2023.126556 |
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dig-alice-doc-11651582024-06-26T16:58:28Z Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. LIMA, T. A. de M. de LIMA, G. G. de MUNIR, N. COUTINHO, J. R. T. MITCHELL, G. R. MAGALHAES, W. L. E. NUGENT, M. J. TIELIDY A. DE M. DE LIMA, TECHNOLOGICAL UNIVERSITY OF THE SHANNON; GABRIEL GOETTEN DE LIMA, UNIVERSIDADE FEDERAL DO PARANÁ; NIMRA MUNIR, ATLANTIC TECHNOLOGICAL UNIVERSITY; JOANA RAQUEL TEIXEIRA COUTINHO, INSTITUTE POLYTECHNIC OF LEIRIA; GEOFFREY ROBERT MITCHELL, INSTITUTE POLYTECHNIC OF LEIRIA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; MICHAEL J.D. NUGENT, TECHNOLOGICAL UNIVERSITY OF THE SHANNON. Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum 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. 2024-06-26T16:58:28Z 2024-06-26T16:58:28Z 2024-06-26 2023 Artigo de periódico International Journal of Biological Macromolecules, v. 253, 126556, 2023. 0141-8130 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165158 http://dx.doi.org/10.1016/j.ijbiomac.2023.126556 eng openAccess |
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Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum |
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Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum LIMA, T. A. de M. de LIMA, G. G. de MUNIR, N. COUTINHO, J. R. T. MITCHELL, G. R. MAGALHAES, W. L. E. NUGENT, M. J. Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
description |
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. |
author2 |
TIELIDY A. DE M. DE LIMA, TECHNOLOGICAL UNIVERSITY OF THE SHANNON; GABRIEL GOETTEN DE LIMA, UNIVERSIDADE FEDERAL DO PARANÁ; NIMRA MUNIR, ATLANTIC TECHNOLOGICAL UNIVERSITY; JOANA RAQUEL TEIXEIRA COUTINHO, INSTITUTE POLYTECHNIC OF LEIRIA; GEOFFREY ROBERT MITCHELL, INSTITUTE POLYTECHNIC OF LEIRIA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; MICHAEL J.D. NUGENT, TECHNOLOGICAL UNIVERSITY OF THE SHANNON. |
author_facet |
TIELIDY A. DE M. DE LIMA, TECHNOLOGICAL UNIVERSITY OF THE SHANNON; GABRIEL GOETTEN DE LIMA, UNIVERSIDADE FEDERAL DO PARANÁ; NIMRA MUNIR, ATLANTIC TECHNOLOGICAL UNIVERSITY; JOANA RAQUEL TEIXEIRA COUTINHO, INSTITUTE POLYTECHNIC OF LEIRIA; GEOFFREY ROBERT MITCHELL, INSTITUTE POLYTECHNIC OF LEIRIA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; MICHAEL J.D. NUGENT, TECHNOLOGICAL UNIVERSITY OF THE SHANNON. LIMA, T. A. de M. de LIMA, G. G. de MUNIR, N. COUTINHO, J. R. T. MITCHELL, G. R. MAGALHAES, W. L. E. NUGENT, M. J. |
format |
Artigo de periódico |
topic_facet |
Plant-based materials Ultra-fine friction grinder Irlanda Celulose nanofibrilada Biomedicina Invasive species Extrusion Rhododendron ponticum |
author |
LIMA, T. A. de M. de LIMA, G. G. de MUNIR, N. COUTINHO, J. R. T. MITCHELL, G. R. MAGALHAES, W. L. E. NUGENT, M. J. |
author_sort |
LIMA, T. A. de M. de |
title |
Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
title_short |
Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
title_full |
Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
title_fullStr |
Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
title_full_unstemmed |
Nanofibrillated cellulose originated from Rhododendron ponticum to produce scaffolds using 3D printing for biomedical applications. |
title_sort |
nanofibrillated cellulose originated from rhododendron ponticum to produce scaffolds using 3d printing for biomedical applications. |
publishDate |
2024-06-26 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165158 http://dx.doi.org/10.1016/j.ijbiomac.2023.126556 |
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