Apatite formation on nano-structured titanium and niobium surface
Wang, X. J., Xiong, J.Y., Li, Y.C., Hodgson, P. D. and Wen, C. E. 2009, Apatite formation on nano-structured titanium and niobium surface, Materials science forum, vol. 614, pp. 85-92.
Current orthopaedic biomaterials research mainly focuses on developing implants that could induce controlled, guided and rapid healing. In the present study, the surface morphologies of titanium (Ti) and niobium (Nb) metals were tailored to form nanoporous, nanoplate and nanofibrelike structures through adjustment of the temperature in the alkali treatment. The in vitro bioactivity of these structures was then evaluated by soaking in simulated body fluid (SBF). It was found that the morphology of the modified surface significantly influenced the apatite inducing ability. The Ti surface with a nanofiber-like structure showed better apatite inducing ability, than the nanoporous or nanoplate surface structures. A thick dense apatite layer formed on the Ti surface with nanofiberlike structure after 1 week soaking in SBF. It is expected that the anofibre-like surface could achieve good apatite formation in vivo and subsequently enhance osteoblast cell adhesion and bone formation in vivo.
Language
eng
Field of Research
090301 Biomaterials
Socio Economic Objective
970111 Expanding Knowledge in the Medical and Health Sciences