Antimicrobial activity of metal-substituted cobalt ferrite nanoparticles synthesized by sol-gel technique

作     者：A.H.Ashour Ahmed I.E1-Batal M.I.A.Abdel Maksoud Gharieb S.El-Sayyad Sh.Labib E.Abdeltwab M.M.El-Okr 

作者机构：Materials Science LaboratoryRadiation Physics Department.National Center for Radiation Research and TechnologyAtomic Energy AuthorityCairoEgypt Drug Microbiology LaboratoryDrug Radiation Research DepartmentNational Center for Radiation Research and TechnologyAtomic Energy Authority CairoEgypt Nuclear Chemistry DepartmentHot Laboratories CenterAtomic Energy AuthorityCairoEgypt Physics DepartmentFaculty of Science (Girls Branch)Al-Azhar UniversityCairo.Egypt Physics Department.Faculty of Science (Boys Branch)Al-Azhar UniversityCairoEgypt 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2018年第16卷第5期

页      面：141-151页

核心收录：

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：National Center for Radiation Research and Technology P.I 

主　　题：Antibacterial Antifungal Zone of inhibition Zinc cobalt ferrite nanoparticles Gamma irradiation 

摘      要：Metal-substituted cobalt ferrites [MxCo(1-x)Fe2O4(M=Zn,Cu,Mn;x=0.0,0.25,0.5,and 0.75)]were synthesized via a sol-gel *** ferrite structures were confirmed by X-ray diffraction, Fourier transform infrared spectroscopy,scanning electron microscopy,surface analysis using the Brunauer-Emmett-Teller method,and energy-dispersive X-ray *** activity of these ferrites against selected pathogenic microbes was *** structures remained cubic spinel phases after substitution of *** strongly influenced the microstructure and homoge- neous grain *** particle size of the ferrites increased linearly with increase in their annealing *** surface area of zinc cobalt ferrite nanoparticles (ZCFO)was 52.56m^2/g,the average pore size was 1.84nm,and pore volume was 0.136mL/*** ferrites showed antimicrobial activity toward all pathogens *** these,the most powerful was ZCFO,showing zones of inhibition of 13.0mm against Bacillus subtilis and Staphylococcus aureus and 12.0mm against Candida ***-irradiated ZCFO nanoparticles (150.0kGy)maintained higher antimicrobial activity than non-irradiated particles,e.g. being active toward *** (16.0mm).ZCFO is proposed as a candidate material for industrial and biomedical purposes.