New silver complexes with bioactive glycine and nicotinamide molecules – Characterization, DNA binding, antimicrobial and anticancer evaluation
作者:Michaela Rendošová、Zuzana Vargová、Juraj Kuchár、Danica Sabolová、Štefan Levoča、Júlia Kudláčová、Helena Paulíková、Daniela Hudecová、Veronika Helebrandtová、Miroslav Almáši、Mária Vilková、Michal Dušek、Dáša Bobáľová
DOI:10.1016/j.jinorgbio.2016.12.003
日期:2017.3
This study introduces a pair of newly synthesized silver complexes, [Ag2(HGly)2]n(NO3)2n (1) and [Ag(Nam)2]NO3·H2O (2) (Gly – glycine, Nam – nicotinamide), that were prepared and characterized by relevant methods in solid state (elemental, spectral, thermal and structural analysis) and their stability in solution was verified by 1H NMR measurements. Moreover, suitable reaction conditions were observed
这项研究引入了一对新合成的银络合物[Ag 2(HGly)2 ] n(NO 3)2n(1)和[Ag(Nam)2 ] NO 3 ·H 2 O(2)(Gly-甘氨酸, Nam –烟酰胺),已通过相关方法在固态下进行了制备和表征(元素,光谱,热和结构分析),并通过1 H NMR测量验证了其在溶液中的稳定性。此外,在二元体系Ag-Gly的情况下,根据pH通过电位计观察到合适的反应条件。X射线分析证实了复合物1中的纯银相互作用Ag1-Ag2距离为2.8018(6)Å。抗菌测试表明,配合物1比配合物2具有更高的生长抑制作用。而且,两种复合物对细菌(金黄色葡萄球菌和大肠杆菌)的效力均优于(或相似)于市售的Ag(I)磺胺嘧啶AgSD(例如,用于地拉嗪乳膏中)的效力。使用电子吸收,荧光和圆二色性分光光度法研究了Ag(I)复合物与小牛胸腺DNA的结合。从线性淬火图获得的Stern-Volmer淬火常数估计为2.01×10