查看文章

Magnesium (Mg) based alloys are good candidates for developing degradable metallic implants. Mg can easily degrade in a physiological environment without producing any toxic by-products. However, the degradation rate needs to be controlled to make it compatible with the tissue growth rate. Achieving enhanced degradation resistance and biological performance in the physiological environment without sacrificing its mechanical and physical properties has been a great challenge. In this work, a combination of surface pre-treatment and polymer nanocomposite coating is attempted for reducing degradation rate and improving biomineralization. The alloy surface was pickled in phosphoric acid and then coated with polydioxanone/hydroxyapatite nanocomposite. The samples were characterized using scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and x-ray diffraction (XRD …