Viability and antibacterial properties of Ba AgFeMoO(x=0.0, 0.05) double perovskite oxides.

Double perovskite BaFeMoO (BFMO) and doped with Ag ions were synthesized via the sol-gel method. The structural and antibacterial properties and viability of the samples were systematically investigated. The results of the Rietveld refinement indicated that both samples exhibited a single phase with cubic structure and space group Fm-3m. The substitution of Ag ions led to an increase in the unit cell and lattice parameters of BFMO, resulting in a change in the sample's morphology. The direct band gap (∼2eV) was measured for samples by Diffuse Reflectance Spectroscopy (DRS). Antibacterial activity of the BaFeMoO and BaAgFeMoO samples was assessed on the Gram-positive bacteria () and the Gram-negative bacteria () using the spread plate method. The results showed that the samples were effective against but not against . The sample doped with Ag ions showed a higher antibacterial effect than the pristine sample. An MTT assay of the normal fibroblast cell line treated with an Ag-doped sample showed a higher percentage of viability.