摘要
以六元瓜环(Q[6])为修饰剂,抗坏血酸为还原剂,硫酸铜为铜源,采用液相化学还原法制备纳米铜。并利用XRD和SEM方法对产物进行了表征,结果显示目标产物为花团状单质纳米铜。然后考察了纳米铜对革兰氏阴性菌大肠杆菌的抑制情况,结果表明,250μg/m L花状纳米铜对大肠杆菌具有良好的抑制作用。
Nano- copper was prepared by chemical reduction method in aqueous solution with cucurbit [6]uril as modifier,ascorbic acid as reductive agent and copper sulfate as copper source. The results showed that the product was a kind of clocklike nano- copper by XRD and SEM. Moreover,nano- copper demonstrated the antibacterial activity f gram- negative bacterium Escherichia coli,and 250 μg. ml- 1clocklike nano- copper exhibited better antibacterial activity to E. coli.
出处
《山地农业生物学报》
2015年第3期68-71,共4页
Journal of Mountain Agriculture and Biology
基金
国家自然科学基金项目(21272045)
贵州省科学技术基金(黔科合J字[2012]2101号)
关键词
瓜环
花团状
纳米铜
大肠杆菌
Cucurbit[n]uril
Clocklike
Nano-copper
Escherichia coli