Abstract
Rapid deposition of hydroxyapatite on Mg-alloy in concentrated simulated body fluid (5×SBF) and modified simulated body fluid (m-SBF) was investigated. By biomineralization method, hydroxyapatite coating was deposited on Mg-alloy with pre-calcification treatment. Scanning electron microscope (SEM), energy disperse spectroscopy (EDS) and X-ray diffraction instrument (XRD) were applied to analyze the deposition product of biomineralization and the related mechanism. The results showed that pre-calcification treatment on Mg-alloy can lead to a quite rapid deposition of hydroxyapatite. Ionic concentrations in SBF solutions affected the structure of hydroxyapatite greatly. A homogeneous plate-like apatite coating was induced on Mg alloy sample in m-SBF solution which is promising for the future practice.
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