Antimicrobial activity of ABO3 perovskite nanoparticles (BNN, SNN, and BSNN) against Bacillus subtilis Kapse Nilkanth N., Pandit Vishal A.1, Kashte Vaibhav K.2, Bajaj Shivnarayan B.2 Department Of Physics, B. Raghunath ACS College, Parbhani, 431401, (MS) India 1Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Chh. Sambhajinagar, (MS) India 2Department of Physics, J. E. S. College, Jalna, 431203, India Online published on 12 July, 2024. Abstract Perovskite oxides (ABO3) have been emerged as antimicrobial agents. Present study was undertaken on the synthesis and characterization of three perovskite nanoparticles: Ba(Ni0.5 Nb0.5)O3 (BNN), Sr (Ni0.5 Nb0.5)O3 (SNN), and BaSr(Ni0.5 Nb0.5)O3 (BSNN), using the solid-state method. UV-Vis spectroscopy of these nanoparticles revealed distinct absorption peaks with energy band gaps: 3.37 eV for BNN, 2.43 eV for SNN, and 2.77 eV for BSNN. Transmission Electron Microscopy (TEM) showed well-defined spherical particles with average sizes of 23.06 nm for BNN, 22.94 nm for SNN, and 21 nm for BSNN.The antimicrobial activity of the nanoparticles was tested against Bacillus subtilis using agar well diffusion method. BNN and SNN showed moderate, while BSNN exhibited larger zone of inhibition, suggesting higher antimicrobial activity. Top Keywords Perovskite nanoparticles, Antimicrobial activity, B. subtilis, Solidstate method. Top |