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Publikācija: Preparation and Characterization of Porous Titania Ceramic Scaffolds

Publication Type Publications in RTU scientific journal
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Preparation and Characterization of Porous Titania Ceramic Scaffolds
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Inga Narkevica
Laura Stradina
Vladimir Yakushin
Jurijs Ozoliņš
Keywords Titanium dioxide, scaffold, microstructure, porosity, strength
Abstract Biocompatible ceramics have recently attracted increasing attention as porous scaffolds that stimulate and guide natural bone regeneration. Due to excellent biocompatibility of titania (titanium dioxide or TiO2) porous three-dimensional (3D) TiO2 structures have been proposed as promising scaffolding materials for inducing bone formation from the surrounding environment and for enhancement of vascularisation after implantation. In this paper, 3D porous TiO2 ceramic scaffolds were produced via polymer foam replica method. This work deals with several important issues that are considered to be important for 3D scaffolds applied to regenerate bone tissue: pore size, porosity and mechanical strength. TiO2 ceramic scaffolds with pore size 300 μm − 700 μm and porosity > 90 % were obtained. Scaffolds showed fully open and interconnected pore structure that remained after recoating them with low viscosity TiO2 slurry. By optimising thermal treatment conditions grain growth and collapse of struts could be controlled in a way that resulted in higher compressive strength. Recoating greatly improved compressive strength and it reached 0.74±0.08 MPa after two coatings without causing changes in the open pore structure.
DOI: 10.7250/msac.2015.001
Reference Narkevica, I., Stradina, L., Yakushin, V., Ozoliņš, J. Preparation and Characterization of Porous Titania Ceramic Scaffolds. Materials Sciences and Applied Chemistry. Vol.31, 2015, pp.5-9. ISSN 1407-7353. e-ISSN 2255-8713. Available from: doi:10.7250/msac.2015.001
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ID 20323