Ultrasonic-assisted preparation of reduced graphene oxide-hydroxyapatite nanocomposite for bone remodeling
Document Type
Article
Publication Date
2-1-2021
Abstract
An ultrasonic-assisted preparation strategy was employed to synthesize in-situ hydroxyapatite-reduced graphene oxide nanocomposite (n-HA/rGO) as a potential biomaterial for bone regeneration under the osteoporotic condition. The results of Rietveld refinement indicated that the optimum crystallite size was 20.26 +/- 0.52 nm following the ultrasonication at 400 W for 10 min. Well-dispersed plate-shaped HA nanocrystals with the mean thickness of 25 +/- 2 nm were formed on the surface of rGO due to its anchoring tendency with calcium ions and hydrogen phosphate. By increasing the amount of power to 500 W, the intensity ratio of the D and G bands (ID/IG) increased due to the rise in the perturbation level in the rGO matrix and the chemical interactions between the rGO and HA. (c) 2020 Elsevier B.V. All rights reserved.
Keywords
Nanocomposites, X-ray techniques, Raman, Microstructure, Carbon materials
Divisions
CHEMISTRY
Publication Title
Materials Letters
Volume
284
Issue
1
Publisher
Elsevier
Publisher Location
RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS