Facile Preparation and Characterization of Alginate and Triton X-100 Zinc Phosphate modified Surface Nanocrystals as a Novel Anti-corrosive and Antibacterial agent

In this study, two surface-modified antibacterial and anti-corrosive nanoparticles (ZnP-T, ZnP-ALG) were synthesized by facile and efficient one-step ultrasonic synthesis method. Nanocrystals were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared (FT-IR), Energy Dispersive X-Ray Analysis (EDX), Scanning Electron Microscopy (SEM) and Transmission electron microscopy (TEM). The TEM image showed that the product had good dispersion with a particle size of 10-23, 15–32 nm respectively. Antibacterial and cytocompatibility properties were studied by agar diffusion, in vitro viability and cytotoxicity assay (MTT) and colony-forming-unit (CFU). Antibacterial rate of the ZnP-T and ZnP-ALG nanoparticles reached near 100% and cell viability was near 100%. The corrosion resistance of ZnP-T and ZnP-ALG was evaluated by the electrochemical impedance spectroscopy (EIS) approach. Nyquist diagrams demonstrated that the ZnP-ALG sample had better protection than the ZnP-T sample at all immersion time . The frequency phase angle of the ZnP-ALG sample (θ10 kHz) has a greater value compared with the ZnP-T case.