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

Porwal H, Grasso S, Cordero Arias LE, Li C, Boccaccini AR, Reece MJ (2014)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Journal of Materials Science: Materials in Medicine Springer

Book Volume: 25

Pages Range: 1403-1413

Journal Issue: 6

DOI: 10.1007/s10856-014-5172-x

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.

Authors with CRIS profile

Luis Eduardo Cordero Arias Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Queen Mary, University of London GB United Kingdom (GB) Xi’an Jiaotong-Liverpool University (XJTLU) CN China (CN)

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.

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