01805naa a2200253 a 450000100080000000500110000800800410001902400540006010000170011424501360013126000090026730000100027652010350028665300180132165300170133965300220135670000240137870000160140270000200141870000170143870000230145570000200147877300530149821491082024-01-23       2022    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1080/24701556.2022.2078352DOI1 aBRITO, S. C.  aOne-pot synthesis of CuO, ZnO, and Ag nanoparticlesbstructural, morphological, and bactericidal evaluation.h[electronic resource]  c2022  a12 p.  aMaterials based on metal oxide nanoparticles with antimicrobial properties have been studied as alternatives to silver, seeking a lower cost, toxicity, and inhibition or retarding of microorganism growth. In this context, the present work aimed to investigate the antimicrobial effect of copper oxide (CuONPs) and zinc oxide (ZnONPs) nanoparticles against silver in Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The ultrasound method was applied to obtain the nanoparticles in a single and quick step. Antimicrobial activity was verified by the agar diffusion disk test and flask agitation test. The nanoparticles obtained from CuONPs (15 ± 10 nm) and ZnONPs (11 ± 6 nm) showed more significant inhibition for S. aureus. Besides that, CuONPs showed superior antimicrobial activity than AgNPs and ZnONPs in significant concentrations. Thus, the results reinforce the antimicrobial efficiency of silver, but suggest alternatives with a lower cost material, such as CuO and ZnO nanoparticles.  aAntimicrobial  aCopper oxide  aUltrasound method1 aMALAFATTI, J. O. D.1 aARAB, F. E.1 aBRESOLIN, J. D.1 aPARIS, E. C.1 aSOUZA, C. W. O. de1 aFERREIRA, M. D.  tInorganic and Nano-Metal Chemistrygv. 52, 2022.