Fascinating study of adding nanocomposite cobalt nano ferrite to silver nanoparticles accompanied magnetite impurity

Abstract The nanomaterials silver nanoparticles accompanied magnetite impurity (Ag–Fe 3 O 4 ) (AF) and cobalt nano ferrite/silver–magnetite (0.3 CoFe 2 /0.7Ag–Fe (CAF) nanocomposite were prepared by flash auto-combustion using urea as fuel. This is the first time preparing this new material. as-prepared characterized X-ray diffraction pattern, atomic force microscopy, Fourier transform infrared spectroscopy. characterization affirmed that in nanoscale range with a cubic structure. saturation magnetization of CAF 29-fold AF nanoparticles, coercivity 19-fold AF. Moreover, transformation from soft hysteresis loop to hard for makes suitable many technological applications, especially permanent magnet. Also, magnetic measurements showed operating frequency value very high radio wave region, an ultra-high microwave S-band region. Unexpected behavior appeared antimicrobial activity nanocomposite. It was found gave strong efficacy than against tested gram-positive gram-negative bacteria. Thus, are promising biomedical ones magnet