Fabrication of Nanohydroxyapatite-Chitosan Coatings by Pulse Electrodeposition Method

In this study, Mg–2 wt% Zn scaffolds were fabricated by the powder metallurgy method, and effects of porosity content on microstructure, mechanical properties studied. Nanocomposite coatings deposited pulse electrodeposition (PED) method Mg–2Zn studied using a scanning electron microscope (SEM), X-ray diffraction (XRD), energy-dispersion spectrometer (EDS), Fourier transform infrared spectroscopy (FT-IR). The morphologies showed that optimal coating was obtained at 40 V voltages, 10 min time nanohydroxyapatite(nHA)/chitosan (CS) ratio = 10. pulse-peak current density (CD), duty cycles (DC), pH temperature considered mA/cm2, 0.2,7 37 °C, respectively. coating, Ca/P atomic 1.57, which is similar to value bone hydroxyapatite. corrosion resistance thermal stability examined potentiodynamic polarization thermogravimetric analysis (TGA), results rate 0.58 mm/year, very low appropriate in compared with 2.09 mm/year. TGA indicated significant weight loss about 23% 14% for CS vitro biocompatibility evaluated cell adhesion, cytotoxicity, alkaline phosphatase (ALP) assays MG63 cells. indicate nanocomposite highly biocompatible, making material more suitable applications tissue engineering repair defects caused sports injuries.