Antibacterial activity of Nickel-doped ZnO/MWCNTs hybrid prepared by sol–gel techniqueSelma M.H. AL-Jawad, Zahraa S. Shakir and Duha S. AhmedEur. Phys. J. Appl. Phys., 96 2 (2021) 21201DOI: https://doi.org/10.1051/epjap/2021210115