Effect of graphene oxide on the corrosion, mechanical and biological properties of Mg-based nanocomposite
Saeid Jabbarzare , Hamid Reza Bakhsheshi-Rad , Amir Abbas Nourbakhsh , Tahmineh Ahmadi , Filippo Berto
International Journal of Minerals, Metallurgy, and Materials ›› 2022, Vol. 29 ›› Issue (2) : 305 -319.
Effect of graphene oxide on the corrosion, mechanical and biological properties of Mg-based nanocomposite
This study investigates the effect of graphene oxide (GO) on the mechanical and corrosion behavior, antibacterial performance, and cell response of Mg—Zn—Mn (MZM) nanocomposite. MZM/GO nanocomposites with different amounts of GO (i.e., 0.5wt%, 1.0wt%, and 1.5wt%) were fabricated by the semi-powder metallurgy method. The influence of GO on the MZM nanocomposite was analyzed through the hardness, compressive, corrosion, antibacterial, and cytotoxicity tests. The experimental results showed that, with the increase in the amount of GO (0.5wt% and 1.5wt%), the hardness value, compressive strength, and antibacterial performance of the MZM nanocomposite increased, whereas the cell viability and osteogenesis level decreased after the addition of 1.5wt% GO. Moreover, the electrochemical examination results showed that the corrosion behavior of the MZM alloy was significantly enhanced after encapsulation in 0.5wt% GO. In summary, MZM nanocomposites reinforced with GO can be used for implant applications because of their antibacterial performance and mechanical property.
magnesium-based nanocomposite / graphene oxide / powder metallurgy method / mechanical property / antibacterial activity / biocompatibility
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