Viitala R, Simola J, Peltola T, Rahiala H, Linden M, Langlet M, Rosenholm J B
Department of Physical Chemistry, Abo Akademi University, Porthaninkatu 3-5, FIN-20500 Turku, Finland.
J Biomed Mater Res. 2001 Jan;54(1):109-14. doi: 10.1002/1097-4636(200101)54:1<109::aid-jbm13>3.0.co;2-s.
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.
通过气溶胶凝胶技术在钛金属和硅片上制备了具有生物活性、纯净且掺杂钙或磷的二氧化钛薄膜涂层。采用X射线光电子能谱、原子力显微镜、傅里叶变换红外光谱和扫描电子显微镜对涂层进行了表征。在模拟体液中对生物活性进行了体外测定，结果表明其与通过浸涂法制备的溶胶-凝胶衍生二氧化钛涂层完全可比。然而，含碳酸盐磷灰石的形成速率随掺杂剂浓度的增加而降低，这与涂层的化学成分和拓扑结构变化有关。
