title: Anodic mesoporous TiO2 layer on Ti for enhanced formation of biomimetic hydroxyapatite.
abstract: Ti surfaces can be very efficiently coated by a robust (μm thick) mesoporous titania layer (MTL). These coatings are produced by anodization of Ti at elevated temperature in a glycerol/K(2)HPO(4) electrolyte, followed by an appropriate etching process. In the present work we examine these layers with regard to their ability to form hydroxyapatite. Immersion tests in two types of simulated body fluids (Kokubo SBF and Bohner and Lemaitre SBF) combined with scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy investigations show that these MTL layers lead to a significant enhancement of HAp formation and anchoring in the structure compared with non-coated or even nanotubular Ti surface coatings (these were recently reported to be the most efficient in terms of HAp formation).
authors.affiliation: Department of Materials Science, WW4-LKO, University of Erlangen-Nuremberg, Erlangen, Germany.
authors.forename: Tuli
authors.initials: T
authors.lastname: Dey
authors.forename: Poulomi
authors.initials: P
authors.lastname: Roy
authors.forename: Ben
authors.initials: B
authors.lastname: Fabry
authors.forename: Patrik
authors.initials: P
authors.lastname: Schmuki
mesh_terms: D040761:Biomimetic Materials / Q000138:chemical synthesis*; D017886:Durapatite / Q000138:chemical synthesis*; D004566:Electrodes; D008855:Microscopy, Electron, Scanning; D043942:Nanotubes / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D016062:Porosity; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C009495:titanium dioxide; D017886:Durapatite; D014025:Titanium