Synthesis of intrinsic, Manganese and magnesium doped cobalt ferrite nanoparticles: Physical properties for antibacterial activities

Abstract

The work emplaced in this research is the synthesis of cobalt ferrite nanoparticles (CFNPs) doped with manganese and magnesium for antibacterial activities by sol-gel protocol. The physicochemical properties of CFNPs, Mg_CFNPs and Mn_CFNPs as described by the characterization techniques shows good results. Cubic spinel structures of CFNPs, Mg_CFNPs and Mn_CFNPs were observed by the X-ray diffraction (XRD) technique. The transmission electron microscope (TEM) established the spherical shape of the samples. The functional groups embedded in the sample were observed using FTIR and complimented by the Raman analysis. The formulated sample was used against four pathogenic strains S. epidermidis; B. subtilis; E. coli and K. pneumoniae. Higher susceptibility against E. coli was observed with Mg_CFNPs compared to the pristine (CFNPs) and Mn_CFNPs. Hence, the formulated Mg_CFNPs are highly significant and propitious for antibacterial activities.

Keywords

• Cobalt ferrite
• Manganese ferrite
• Magnesium ferrite
• Sol-gel protocol
• Antibacterial activities