Abstract
The objective of this work is to discuss the microstructural effect of TiO2 nanotubes on formation mechanism and morphology of apatite layer. An anodization method was employed to prepare self-organized TiO2 nanotubes on the surface of pure titanium, followed by these substrates being soaked in simulated body fluid (SBF) to form a bioactive layer. By manipulating the anodization time between 0.5 h and 3 h, nanotubes could be grown of any desired length ranging from 662 ± 5 nm to 1291 ± 5 nm. The diameter of rod-like apatite layer grown on the nanotubes decreased yet subsequently increased with the variation of nanotubular surface morphology and length. In addition, the nanotube length dependence of apatite formation can be ascribed to the different dissolution rate of nanotubes during the deposition of calcium phosphate (Ca-P) coatings, as well as the different penetration rate of Ca and P ions toward nanotube layer.
Keywords: TiO2 nanotubes, anodic oxidation, Ca-P layer, biomimetic growth
Current Nanoscience
Title: Effect of TiO2 Nanotube Morphology on the Formation of Apatite Layer in Simulated Body Fluid
Volume: 6 Issue: 3
Author(s): Yanqin Liang, Xianjin Yang, Zhenduo Cui and Shengli Zhu
Affiliation:
Keywords: TiO2 nanotubes, anodic oxidation, Ca-P layer, biomimetic growth
Abstract: The objective of this work is to discuss the microstructural effect of TiO2 nanotubes on formation mechanism and morphology of apatite layer. An anodization method was employed to prepare self-organized TiO2 nanotubes on the surface of pure titanium, followed by these substrates being soaked in simulated body fluid (SBF) to form a bioactive layer. By manipulating the anodization time between 0.5 h and 3 h, nanotubes could be grown of any desired length ranging from 662 ± 5 nm to 1291 ± 5 nm. The diameter of rod-like apatite layer grown on the nanotubes decreased yet subsequently increased with the variation of nanotubular surface morphology and length. In addition, the nanotube length dependence of apatite formation can be ascribed to the different dissolution rate of nanotubes during the deposition of calcium phosphate (Ca-P) coatings, as well as the different penetration rate of Ca and P ions toward nanotube layer.
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Cite this article as:
Liang Yanqin, Yang Xianjin, Cui Zhenduo and Zhu Shengli, Effect of TiO2 Nanotube Morphology on the Formation of Apatite Layer in Simulated Body Fluid, Current Nanoscience 2010; 6 (3) . https://dx.doi.org/10.2174/157341310791171144
DOI https://dx.doi.org/10.2174/157341310791171144 |
Print ISSN 1573-4137 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6786 |
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