Abstract
The challenges associated with managing Mg degradation rate demand novel technologies to ensure its biological safety and reliability. Here, fluoridated hydroxyapatite nanopowders with different degrees of fluoridation were coated on microarc oxidized AZ91 magnesium alloy via the electrophoretic deposition method. Zeta potential and conductivity monitoring techniques were employed to offer appropriate conditions for the coatings. The bio-corrosion process and the associated mineralization were interpreted during the immersion in simulated body fluid solution. Based on the results, the 25% fluorine substituted hydroxyapatite coating on microarc-treated AZ91 implant was proposed to stimulate bone ingrowth in a minor invasive behavior and without post-operative complications during its lifespan.
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