Abstract:

We prepare Fe₃O₄ nanoparticles by solvothermal routes. We obtain Fe₃O₄/Ag nanocomposite with Fe₃O₄ nanoparticales as magnetic core, reaction with glucose in a hightemperture and high-pressure reactor and the coated nanoparticles reaction with AgNO₃ by the reduction of chitosan. Their morphology and structure are characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Determination of antibacterial test of minimal inhibitory concentration and minimum bactericidal concentration shows that composite materials Fe₃O₄/Ag have better antibacterial activity.

Key words: Fe₃O₄/Ag, nanocomposite material, antibacterial activity