Influence of Silver Nanoferrite and Nanochromite on Physical Properties for High-Frequency and Biomedical Applications

In this work, the effects of silver nanoferrite and nanochromite (Ag 2 Fe 2 O 2 , Ag 2 Cr 2 O 4 ) were studied using the flash auto-combustion technique. Numerous physical properties were clarified from the different structures determined from the x-ray examination such as lattice parameter the cation dispersion, oxygen parameter, hopping length, and interatomic distance. Among antimicrobial properties, Ag addition to both samples showed high efficacy against both types of tested bacteria (gram-positive and gram-negative); however, they showed moderate effect against Candida albicans fungus. No activity appeared against Aspergillus flavus fungus for both samples. The switching field and high-frequency response of Ag 2 Fe 2 O 4 and Ag 2 Cr 2 O 4 nanoparticles were studied from the magnetic properties. Ag 2 Cr 2 O 4 nanoparticles are expected to be used for high-frequency applications more than Ag 2 Fe 2 O 4 ones. As a result of all previous analyses, the applications of this study promote the use of Ag 2 Fe 2 O 4 nanoferrite and Ag 2 Cr 2 O 4 nanochromite for high-frequency, switching field, and biomedical applications as antimicrobial nanomaterials.