Graphene oxide in a polymeric-ceramic matrix: analysis of the mechanical properties in compression.
Abstract
The incorporation of novel materials into tissue engineering has aided to solve specific problems in bone regeneration. Graphene oxide (GO) has been used as a mechanical reinforcement in biomaterials with ceramic or polymeric matrices. In this work, the design and compression mechanical properties of scaffolds composed of Polycaprolactone (PCL), Hydroxyapatite (HAP), and graphene oxide (GO) are analysed, in a weight percentage ratio of PCL (80)-HAP (20)/GO (0.1). GO was obtained by Hummer’s method and HAP was synthetized by coprecipitation. The scaffolds were subjected to a 70% deformation in the Univert® testing machine of the Cell Scale® brand. Once the mechanical tests have been done, the data is analysed to obtain the stress-strain curves. A mechanical model is also developed through the Levenberg-Marquardt least-squares algorithm in the Comsol Multiphisics® software, from which the parameters of the material model are obtained.
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References
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