In vitro bioactivity of aerosol-gel deposited TiO(2) thin coatings.
Bioactive, pure, and Ca- or P-doped TiO(2) thin coatings on Ti metal and Si wafers were prepared by the aerosol-gel technique. The coatings were characterized by X-ray photoelectron spectroscopy, atomic force microscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy. Bioactivity was determined in vitro in a simulated body fluid and was shown to be fully comparable to sol gel-derived TiO(2) coatings prepared by dip-coating. However, the formation rate of carbonate containing apatite decreased with increasing dopant concentration, which was related to changes in chemical composition and topology of the coatings.
Viitala
R
R
Department of Physical Chemistry, Abo Akademi University, Porthaninkatu 3-5, FIN-20500 Turku, Finland. rviitala@abo.fi
Simola
J
J
Peltola
T
T
Rahiala
H
H
Linden
M
M
Langlet
M
M
Rosenholm
J B
JB
D000336:Aerosols; D020099:Coated Materials, Biocompatible; D005782:Gels; D007202:Indicators and Reagents; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D013052:Spectrometry, X-Ray Emission; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D000336:Aerosols; D020099:Coated Materials, Biocompatible; D005782:Gels; D007202:Indicators and Reagents; C009495:titanium dioxide; D014025:Titanium