Structural refinement and antimicrobial activity of aluminum oxide nanoparticles

The study aimed to prepare Al2O3 nanoparticles (NPs) from aluminum wastes (originate workshops as waste) and tested its antimicrobial activity against bacteria (Gram-negative): Escherichia coli ATCC25922, Salmonella Typhimurium ATCC14028, Pseudomonas aeruginosa ATCC27853, Alcaligenes aquatilis (Gram-positive): Staphylococcus aureus ATCCBAA977 Streptococcacea pneumonia ATCC49619, types of Fungal Aspergillus niger, flavus Penicillium sp. nanomaterial prepared were confirmed using X-ray diffraction (XRD), Scan electron microscope (SEM) with Energy dispersive analysis (EDAX) techniques. structural refinement this material has been achieved by the Rietveld method. shape, cell parameters atomic positions deduced for each allotropy form appearing at different calcination temperature (700–1300 °C) particle size less than 100 nm. Results obtained XRD denoted that alumina is crystallite nano-particles, ranged 15 nm 90 °C 50 1300 °C, confirms direct influences growth. EDX analyses show only presence two peaks oxygen. NPs had activities. diameter inhibitory zone shows sensitivity microorganism especially 30 % dimethyl sulfoxide (DMSO). Furthermore, effect increases decreasing DMSO concentration.