A ZnO-TiO2-Amygdalin nanocomposite for bone regeneration and antimicrobial activity.

By decreasing bacterial infection and enhancing the bone repairing/healing process, nanomedicine has recently become an increasingly popular approach for addressing high infection risk and low bony reconstruction. Thus, in our study, we attempted to synthesize ZnO-TiO2-Amygdalin nanocomposite and investigate its effect against pathogenic microorganisms and also on the growth and differentiation of osteoblast cells. In this work, ZnO-TiO2-Amygdalin was formulated by co-precipitation. It was characterized by analytical techniques, which revealed the hydrodynamic radius of the nanocomposite to be 115 nm with a nanoflakes structure and Wurtzite hexagonal phase formation. According to the data, the ZnO-TiO2-Amygdalin nanocomposite surface matrix possesses a strong electrostatic interaction. The antimicrobial effects of ZnO-TiO2-Amygdalin nanocomposites were investigated in vitro against S. aureus, S. pneumoniae, K. pneumoniae, S. dysenteriae, and C. albicans, and dose-dependent inhibition of bacterial growth was observed. A time-dependent release of alkaline phosphatase was induced with calcium deposition by incubation ZnO-TiO2-Amygdalin nanocomposites at different doses in osteoblast-like cells (MG-63) exposed to ZnO-TiO2-Amygdalin nanocomposites. Ultimately, our data showed that due to its antimicrobial effect, increased osteoblast proliferation, stimulated ALP level, and calcium mineralization potential, ZnO-TiO2-Amygdalin nanocomposites could be effectively used in orthopedic traumas.