Synthesis of Bioactive β-TCP Coatings With Tailored Physico-Chemical Properties on Zirconia Bioceramics

J Mater Sci Mater Med. 2014 Oct;25(10):2333-45. doi: 10.1007/s10856-014-5246-9. Epub 2014 Jun 12.

Abstract

The objective of this work was to develop a synthesis procedure for the deposition of β-TCP coatings with tailored physico-chemical properties on zirconia bioceramics. The synthesis procedure involved two steps: (i) a rapid wet-chemical deposition of a biomimetic CaP coating and (ii) a subsequent post-deposition processing of the biomimetic CaP coating, which included a heat treatment between 800 and 1200 °C, followed by a short sonication in a water bath. By regulating the heating temperature the topography of the β-TCP coatings could be controlled. The average surface roughness (Ra) ranged from 42 nm for the coating that was heated at 900 °C (TCP-900) to 630 nm for the TCP-1200 coating. Moreover, the heating temperature also affected the dissolution rate of the coatings in a physiological solution, their protein-adsorption capacity and their bioactivity in a simulated body fluid.

MeSH terms

  • Body Fluids / chemistry
  • Calcium Phosphates / chemical synthesis
  • Calcium Phosphates / chemistry*
  • Ceramics / chemical synthesis*
  • Ceramics / chemistry
  • Coated Materials, Biocompatible / chemical synthesis*
  • Coated Materials, Biocompatible / chemistry
  • Humans
  • Materials Testing / methods
  • Microscopy, Electron, Scanning
  • Surface Properties
  • X-Ray Diffraction
  • Zirconium / chemistry*

Substances

  • Calcium Phosphates
  • Coated Materials, Biocompatible
  • beta-tricalcium phosphate
  • Zirconium
  • zirconium oxide