Structural, magnetic, antimicrobial and hemolysis properties of sol–gel derived iron manganese tri oxide (FeMnO3) nanostructures

Nanocrystalline Iron Manganese Tri Oxide (FeMnO3, abbreviation name IMTO) material was attempted via colloidal solution followed by gel formation and subsequent processing at a calcined temperature of 480 °C. The above-mentioned compound was investigated for its structural characteristics, magnetic behavior, antibacterial response, and hemolysis experiment for spintronics and biomedical applications. The cubic crystal structure and weak ferromagnetic behaviour were noticed for the synthesized material from the powder X-ray diffraction (XRD) pattern and Vibrating Sample Magnetometer (VSM) studies. The surface structure of the title compound is noticed in aggregated spherical particles using Scanning Electron Microscopy (SEM) analysis. The antimicrobial activity of IMTO samples against gram-positive strains such as Streptococcus mutans (S. mutans) and Staphylococcus aureus (S. aureus) and gram-negative strains like Escherichia coli (E. coli) and Pseudomonas aeruginosa (P. aeruginosa) has been performed, followed by measurements of the zone of inhibition and their values are elucidated in detail. The hemolysis assay was carried out by taking human blood with the synthesized compound at various concentrations (5, 10, and 15 mg/mL), and the results showed its biocompatible nature.