✍ Scribed by Xianghui Hou; Kwang-Leong Choy; Sian Ellen Leach
No coin nor oath required. For personal study only.
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. © 2007 Wiley Periodicals, Inc. J Biomed Mater Res 2007
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