Hydroxyapatite/ZrO₂@SiO₂ bioceramic composite: Producing a promising biomaterial from natural sources

Author(s)

Souza Padovini, David Santos ; de Azevedo-Silva, Lucas Jose ; Ferrairo, Brunna Mota ; Pereira, Leticia Florindo ; Minim, Pedro Rodrigues ; Lima Pontes, Fenelon Martinho ; Fortulan, Carlos Alberto ; Sanches Borges, Ana Flavia

• Document type: Journal article
• Source: MRS COMMUNICATIONS; v. 13, n. 4, p. 7-pg., 2023-07-27.

Abstract

ZrO2@SiO2 (core-shell) was prepared by mixing ZrO2 with SiO2 according to modified Stober method. The nanostructures (15 wt%, ZrO2, SiO2, ZrO2@SiO2) were mixed with bovine hydroxyapatite (HA) and subjected to X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FE-SEM), Vickers hardness (VH), and biaxial flexural strength (BFS). XRD showed no formation of secondary phases and FE-SEM revealed more homogeneous surface for ZrO2@SiO2. VH and BFS results showed statistically significant difference between all groups (p < 0.05). ZrO2@SiO2 significantly improved VH and BFS of HA. The ZrO2@SiO2 proved to be a promising material as a reinforcement for HA-based bioceramic. (AU)

• FAPESP's process: 18/23639-0 - Manufacturing of dense bovine hydroxyapatite ceramics with added TiO2 nanoparticles: innovation for sustainability
• Grantee: Ana Flávia Sanches Borges
• Support Opportunities: Regular Research Grants