物理化学学报2018，Vol.34Issue(5)：543-550,8.DOI:10.3866/PKU.WHXB201709291
儿茶素-稀土配合物的合成、表征及抗菌活性
Synthesis, Characterization, and Antibacterial Activity of Rare Earth-Catechin Complexes
摘要
Abstract
Three kinds of novel coordination compounds [Re3+-C] (Re =La,Gd,Er;C =Catechin) were synthesized by the liquid-phase method,and characterized by Fourier transform infrared (FT-IR) spectroscopy,ultraviolet-visible (UV)spectrophotometry,X-ray photoelectron spectroscopy (XPS),and coordination number determination.The results indicated that the coordination number of the complexes is 8.Moreover,the antibacterial activities of Re3+-C against Escherichia coli,Staphylococcus aureus,Pseudomonas aeruginosa,and Salmonella were evaluated by the Oxford cup,minimum inhibition concentration (MIC),and minimum bactericidal concentration (MBC) approaches.Compared with Re3+ and C,the as-prepared complexes exhibited excellent antimicrobial activity toward the four strains.The MIC of Gd3+-C to these food-borne bacteria was 1.550,0.0968,0.775,and 1.550 μmol·mL-1,respectively,while the corresponding MBC values were 3.100,0.194,1.550,and 1.550 μmol·mL-1.It is clear that the Gd3+-C complex showed the best antibacterial and germicidal activity against S.aureus.关键词
儿茶素/稀土/配合物/食源性细菌/抗菌活性Key words
Catechin/Rare earth/Complex/Food-borne bacteria/Antibacterial activity分类
化学化工引用本文复制引用
余康,田翠翠,李霞,廖学品,石碧..儿茶素-稀土配合物的合成、表征及抗菌活性[J].物理化学学报,2018,34(5):543-550,8.基金项目
The project was supported by the National Technology Improvement and Industrialization Project of Fundamental Materials,China (2017YFB0308500).国家重点基础材料技术提升与产业化项目(2017YFB0308500)资助 （2017YFB0308500）
