In Vitro Apatite-Forming Ability of Titania Films Depends on Their Substrates
Titania films were coated by means of sol-gel method on various substrates such as titanium, titanium alloy, silicon wafer, stainless-steel, alumina, and glass slide where they coded as C5Ti, C5Ti6Al4V, C5Si, C5SUS, C5Al2O3 and C5GS, respectively. Their in vitro apatite-forming ability was examined with the Kokubo’s simulated body fluid (SBF; pH 7.4, 36.5°C). C5Ti, C5Ti6Al4V and C5Si deposited apatite particles on their surface within 7 days, whereas, C5SUS, C5Al2O3 and C5GS did not. These results implied that the in vitro apatite-forming ability of the titania films indirectly depended on the chemical or physical properties of the substrates.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
T. Shozui et al., "In Vitro Apatite-Forming Ability of Titania Films Depends on Their Substrates", Key Engineering Materials, Vols. 330-332, pp. 633-636, 2007