Processing and bioactivity of 45S5 Bioglass®-graphene nanoplatelets composites

Journal article
(Original article)


Publication Details

Author(s): Porwal H, Grasso S, Cordero Arias LE, Li C, Boccaccini AR, Reece MJ
Journal: Journal of Materials Science: Materials in Medicine
Publication year: 2014
Volume: 25
Journal issue: 6
Pages range: 1403-1413
ISSN: 1573-4838


Abstract


Well dispersed 45S5 Bioglass® (BG)-graphene nanoplatelets (GNP) composites were prepared after optimising the processing conditions. Fully dense BG nanocomposites with GNP loading of 1, 3 and 5 vol% were consolidated using Spark plasma sintering (SPS). SPS avoided any structural damage of GNP as confirmed using Raman spectroscopy. GNP increased the viscosity of BG-GNP composites resulting in an increase in the sintering temperature by ∼50°C compared to pure BG. Electrical conductivity of BG-GNP composites increased with increasing concentration of GNP. The highest conductivity of 13 S/m was observed for BG-GNP (5 vol%) composite which is ∼9 orders of magnitude higher compared to pure BG. For both BG and BG-GNP composites, in vitro bioactivity testing was done using simulated body fluid for 1 and 3 days. XRD confirmed the formation of hydroxyapatite for BG and BG-GNP composites with cauliflower structures forming on top of the nano-composites surface. GNP increased the electrical conductivity of BG-GNP composites without affecting the bioactivity thus opening the possibility to fabricate bioactive and electrically conductive scaffolds for bone tissue engineering. © 2014 Springer Science+Business Media.



FAU Authors / FAU Editors

Boccaccini, Aldo R. Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)
Cordero Arias, Luis Eduardo
Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)


External institutions with authors

Queen Mary, University of London
Xi’an Jiaotong-Liverpool University (XJTLU)


How to cite

APA:
Porwal, H., Grasso, S., Cordero Arias, L.E., Li, C., Boccaccini, A.R., & Reece, M.J. (2014). Processing and bioactivity of 45S5 Bioglass®-graphene nanoplatelets composites. Journal of Materials Science: Materials in Medicine, 25(6), 1403-1413. https://dx.doi.org/10.1007/s10856-014-5172-x

MLA:
Porwal, Harshit, et al. "Processing and bioactivity of 45S5 Bioglass®-graphene nanoplatelets composites." Journal of Materials Science: Materials in Medicine 25.6 (2014): 1403-1413.

BibTeX: 

Last updated on 2018-12-10 at 14:50