Nano-scale study of the nucleation and growth of calcium phosphate coating
- Barrère, F.
- Snel, M.M.E.
- van Blitterswijk, Clemens
- de Groot, K.
- Layrolle, Pierre
DOIAbstract
The nucleation and growth of a calcium phosphate (Ca-P) coating deposited on titanium implants from simulated body fluid was investigated by using atomic force microscopy (AFM) and environmental scanning electron microscopy (ESEM). Forty titanium alloy plates were assigned into two groups. One group with a smooth surface having a maximum roughness Rmax<0.10 μm (s-Ti6Al4V) and a group with a rough surface with an Rmax<0.25 μm (r-Ti6Al4V) were used. Titanium samples were immersed in SBF concentrated by five (SBF×5) from 10 min to 5 h and examined by AFM and ESEM. Scattered Ca-P deposits of approximately 15 nm in diameter appeared after only 10 min of immersion in SBF×5. These Ca-P deposits grew up to 60–100 nm after 4 h on both s- and r-Ti6Al...
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