Hydroxyapatite growth on multiwall carbon nanotubes grown on titanium fibers from a titanium sheet

• Published in: Journal of materials science Vol. 49; no. 2; pp. 621 - 632
• Main Authors: Chetibi, Loubna, Achour, Amine, Peszke, Jerzy, Hamana, Djamel, Achour, Slimane
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.01.2014; Springer; Springer Nature B.V
• Subjects: Adhesion tests; Adhesive strength; Biocompatibility; Biomedical materials; Body fluids; Bonding strength; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Coatings; Coatings industry; Corrosion and anti-corrosives; Corrosion resistance; Crystallography and Scattering Methods; Hydroxyapatite; In vitro methods and tests; Materials Science; Metal sheets; Multi wall carbon nanotubes; Nanofibers; Nanotubes; Polymer Sciences; Protective coatings; Scratching; Solid Mechanics; Surgical implants; Titanium; Titanium dioxide; Surface Enhance Raman Scattering Effect; High Adhesion Strength; TiO2 Nanofibers; Surface Enhance Raman Scattering; TiO2
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-013-7742-6

Nano-hydroxyapatite (HA) was grown on functionalized multiwalled carbon nanotubes (MWCNTs) deposited on TiO 2 nanofibers (NFs) that were hydrothermally grown on Ti metal sheets. The HA was electrochemically grown on the MWCNTs/TiO 2 porous layer. It was found that the HA grows on the MWCNTs/TiO 2 NFs in the form of dense coating with nanorice grain-shaped. The incorporation of MWCNTs between HA and TiO 2 NFs has led to higher adhesion strength as measured by micro-scratching test indicating the benefit of MWCNTs on the improving the bonding strength of HA layer. The obtained coatings exhibit excellent corrosion resistance in simulated body fluid. It is expected that this simple route for preparing the new HA/MWCNTs/TiO 2 /Ti-layered structure might be used not only in the biomedical field, but also in catalysis and biological sensing among others.