title: Processing and in vitro behavior of hydroxyapatite coatings prepared by electrostatic spray assisted vapor deposition method.
abstract: Hydroxyapatite (HA) bioactive coatings are often used to improve bone attachment and reduce corrosion of metal prosthesis implants. This paper reports the preparation of HA coatings onto titanium substrates using a novel electrostatic spray assisted vapor deposition (ESAVD)-based method. The deposited coatings are characterized using a combination of Fourier transform infrared spectrometer, X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and scratch test. The results confirm that well-crystallized HA coatings can be produced directly via the single-step ESAVD process, without further heat-treatment. The in vitro behavior of the as-deposited HA coating in simulated body fluid (SBF) is also presented. After 14-day immersion in SBF, the adhesion of the HA coating to the substrate increases significantly.
authors.affiliation: School of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
authors.forename: Xianghui
authors.initials: X
authors.lastname: Hou
authors.forename: Kwang-Leong
authors.initials: KL
authors.lastname: Choy
authors.forename: Sian Ellen
authors.initials: SE
authors.lastname: Leach
mesh_terms: D001826:Body Fluids / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D013057:Spectrum Analysis; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite; D014025:Titanium