AI Article Synopsis
- - The study focuses on how hydroxyapatite formation varies on different layers of titanium dioxide (TiO2) nanotubes, created through electrochemical anodization in fluoride electrolytes.
- - Researchers tested nanotube layers of varying thickness (2 mum and 500 nm) and compared them to compact anodic TiO2 layers using methods like immersion tests, SEM, XRD, and FT-IR.
- - Results indicate that titanium surfaces with nanotubes enhance hydroxyapatite formation, with the 2-mum thick nanotube layer promoting faster deposition, particularly when the tubes are annealed to anatase or a mix of anatase and rutile.
Article Abstract
In the present work, we study the growth of hydroxyapatite formation on different TiO(2) nanotube layers. The nanotube layers were fabricated by electrochemical anodization of titanium in fluoride-containing electrolytes. To study various nanotube lengths, layers with an individual tube diameter of 100 nm were grown to a thickness of approximately 2 mum or 500 nm. The ability to form apatite on the nanotube layers was examined by immersion tests combined with SEM, XRD and FT-IR investigations. For reference, experiments were also carried out on compact anodic TiO(2) layers. The results clearly show that the presence of the nanotubes on a titanium surface enhances the apatite formation and that the 2-mum thick nanotube layer triggers deposition faster than the thinner layers. Tubes annealed to anatase, or a mixture of anatase and rutile are clearly more efficient in promoting apatite formation than the tubes in their "as-formed" amorphous state.
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| http://dx.doi.org/10.1002/jbm.a.30677 | DOI Listing |
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