Silver salts of carboxylic acid terminated generation 1 poly (propyl ether imine) (PETIM) dendron and dendrimers as antimicrobial agents against S. aureus and MRSA
作者:Nadia Suleman、Rahul S. Kalhapure、Chunderika Mocktar、Sanjeev Rambharose、Moganavelli Singh、Thirumala Govender
DOI:10.1039/c5ra03179f
日期:——
evaluated for their antimicrobial potential against sensitive and resistant bacteria. The purpose was to exploit the multiple peripheral functionalities of G1 PETIM dendron and dendrimers for the formation of silver salts containing multiple silver ions in a single molecule for enhanced antimicrobial activity at the lowest possible concentration. G1 PETIM dendron, dendrimers and their silver salts were synthesised
新颖的治疗策略对于解决当前的全球抗菌素耐药性危机至关重要。具有多种外围功能的支链分子被称为树枝状大分子,已作为抗菌剂受到关注,并具有不同程度的毒性。银仅以带正电的形式显示对几种微生物的活性。在这项研究中,合成了第1代(G1)聚丙醚亚胺(PETIM)树突和树枝状聚合物的银盐,并评估了它们对敏感和耐药细菌的抗菌潜力。目的是开发G1 PETIM树突和树状聚合物的多种外围功能,以形成在单个分子中包含多个银离子的银盐,从而以尽可能低的浓度增强抗菌活性。G1 PETIM树突,1 H NMR和13 C NMR。使用MTT分析评估了PETIM银盐对Hep G2,SKBR-3和HT-29细胞系的细胞毒性。评估了G1 PETIM树突/树枝状聚合物,G1树突的硝酸银和银盐(化合物13),具有芳族核(化合物14)和氧核(化合物15)的G1树状聚合物对金黄色葡萄球菌和甲氧西林的活性。通过肉汤稀释法获得抗性金黄色葡萄