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Biodegradation Assessment of Nanostructured Fluoridated Hydroxyapatite Coatings on Biomedical Grade Magnesium Alloy Publisher



Rojaee R1, 2 ; Fathi M1, 2 ; Raeissi K3 ; Sharifnabi A1, 4
Authors
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Authors Affiliations
  1. 1. Biomaterials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
  2. 2. Dental Materials Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
  4. 4. Biomaterials Group, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran 16844, Iran

Source: Ceramics International Published:2014


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. © 2014 Elsevier Ltd and Techna Group S.r.l.
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