Silver-loaded delaminated hectorite nanoparticles for antibacterial materials

Micro & nano letters

article

Mingjie Chen¹  Ruimin Li¹  Xiulin Shu¹  Liangqiu Li¹  Xiaobao Xie¹  Qingshan Shi¹ 

[1] State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology;Department of Biological System Engineering, University of Wisconsin-Madison

关键词: silver;    transmission electron microscopy;    microorganisms;    nanomedicine;    antibacterial activity;    X-ray diffraction;    nanoparticles;    X-ray chemical analysis;    nanocomposites;    X-ray photoelectron spectra;    nanofabrication;    scanning electron microscopy;    biomedical materials;    antibacterial activity;    stable silver nanoparticles;    alternative silver carrier;    hectorite nanoparticles;    antibacterial material;    scanning electron microscopy;    energy-dispersive X-ray study;    silver carrier;    X-ray diffraction;    X-ray photoelectron spectroscopy;    cationic ionic change;    surface coating;    Escherichia coli;    Staphylococcus aureus;    bacterial cell wall;    silver-loaded hectorite nanoparticle;   

DOI  :  10.1049/mnl.2018.5017

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The reaction of 2-amino benzoic acid with 1,2-dichloroethane under reflux in methanol and KOH as a base to gave the precursor [H4L]. The precursor under reflux and drops of CH3COOH which reacted with (2mole) from salicycaldehyde in methanol to gave a new type N2O4 ligand [H2L], this ligand was reacted with (MCl2) Where [M= Co (II), Ni(II), Cu(II) and Zn(II)] in (1:1) ratio at reflux in methanol using KOH as a base, to give complexes of the general formula [M(L)]. All compounds have been characterized by spectroscopic methods [1H NMR ( just to the ligand), FTIR, uv-vis, atomic absorption], melting point, conductivity, chloride content, as well as magnetic susceptibility measurements. From the above data, the proposed molecular structure of [Co(L)], [Ni(L)], [Cu(L)] and[Zn(L)] complexes adopting an octahedral about this metal ions. The synthesized ligand, along with their metal complexes were screened for their in vitro antibacterial activity against ten local strains of E. coli as gram-negative bacteria in addition to ten strains of Salmonella typhi and to ten strains of Acinetobacter baumannii and Ten gram- positive bacteria utilizing for locally strains of Staphylococcus aureus, were tested also using the agar diffusion technique.

【 授权许可】

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