Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering

Bioactive glasses are widely used in tissue engineering because of their several unique and interesting characteristics including promoting angiogenesis. In 3D bioprinting, bioactive glasses are added to bio-ink in limited weight percentages to promote bioactivity. In this study, we investigate t...

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Principais autores: Kolan, Krishna C.R., Li, Wenbin, Semon, Julie A., Day, Delbert E., Althage, Rachel, Leu, Ming C.
Outros Autores: School of Mechanical and Aerospace Engineering
Formato: Conference Paper
Idioma:English
Publicado em: 2018
Assuntos:
Acesso em linha:https://hdl.handle.net/10356/88300
http://hdl.handle.net/10220/45753
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author Kolan, Krishna C.R.
Li, Wenbin
Semon, Julie A.
Day, Delbert E.
Althage, Rachel
Leu, Ming C.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Kolan, Krishna C.R.
Li, Wenbin
Semon, Julie A.
Day, Delbert E.
Althage, Rachel
Leu, Ming C.
author_sort Kolan, Krishna C.R.
collection NTU
description Bioactive glasses are widely used in tissue engineering because of their several unique and interesting characteristics including promoting angiogenesis. In 3D bioprinting, bioactive glasses are added to bio-ink in limited weight percentages to promote bioactivity. In this study, we investigate two different approaches, solvent-based and melt-based extrusion 3D printing, to fabricate scaffolds using a bioactive glass contained polymer composite suitable for bioprinting applications. Highly angiogenic and bioactive borate glass (13-93B3) is added to polycaprolactone (PCL) in 50 wt.% to prepare the polymer-glass composite. The scaffolds fabricated using the two approaches are studied for their mechanical properties, degradation, and bioactivity. The scaffold stiffness and yield strength increased after the addition of borate glass irrespective of the fabrication approach. Scaffolds were soaked in minimum essential medium for up to four weeks to study weight loss and bioactivity. The weight loss results indicated a faster borate glass dissolution in scaffolds made using solvent-based 3D printing whereas an apatite-like layer was formed on scaffolds fabricated with both approaches.
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spelling ntu-10356/883002020-09-24T20:13:10Z Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering Kolan, Krishna C.R. Li, Wenbin Semon, Julie A. Day, Delbert E. Althage, Rachel Leu, Ming C. School of Mechanical and Aerospace Engineering Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018) Singapore Centre for 3D Printing Bioactive Borate Glass DRNTU::Engineering::Mechanical engineering::Prototyping Polymer Composites Bioactive glasses are widely used in tissue engineering because of their several unique and interesting characteristics including promoting angiogenesis. In 3D bioprinting, bioactive glasses are added to bio-ink in limited weight percentages to promote bioactivity. In this study, we investigate two different approaches, solvent-based and melt-based extrusion 3D printing, to fabricate scaffolds using a bioactive glass contained polymer composite suitable for bioprinting applications. Highly angiogenic and bioactive borate glass (13-93B3) is added to polycaprolactone (PCL) in 50 wt.% to prepare the polymer-glass composite. The scaffolds fabricated using the two approaches are studied for their mechanical properties, degradation, and bioactivity. The scaffold stiffness and yield strength increased after the addition of borate glass irrespective of the fabrication approach. Scaffolds were soaked in minimum essential medium for up to four weeks to study weight loss and bioactivity. The weight loss results indicated a faster borate glass dissolution in scaffolds made using solvent-based 3D printing whereas an apatite-like layer was formed on scaffolds fabricated with both approaches. Published version 2018-08-30T04:32:54Z 2019-12-06T17:00:11Z 2018-08-30T04:32:54Z 2019-12-06T17:00:11Z 2018 Conference Paper Kolan, K. C. R., Li, W., Althage, R., Semon, J. A., Day, D. E., & Leu, M. C. (2018). Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 176-182. doi:10.25341/D4B018 https://hdl.handle.net/10356/88300 http://hdl.handle.net/10220/45753 10.25341/D4B018 en © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore. 7 p. application/pdf
spellingShingle Bioactive Borate Glass
DRNTU::Engineering::Mechanical engineering::Prototyping
Polymer Composites
Kolan, Krishna C.R.
Li, Wenbin
Semon, Julie A.
Day, Delbert E.
Althage, Rachel
Leu, Ming C.
Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title_full Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title_fullStr Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title_full_unstemmed Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title_short Solvent and melt based extrusion 3D printing of polycaprolactone bioactive glass composite for tissue engineering
title_sort solvent and melt based extrusion 3d printing of polycaprolactone bioactive glass composite for tissue engineering
topic Bioactive Borate Glass
DRNTU::Engineering::Mechanical engineering::Prototyping
Polymer Composites
url https://hdl.handle.net/10356/88300
http://hdl.handle.net/10220/45753
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