中文关键词:Cu2O/Ag纳米复合材料 抗菌性能 抗菌机理 英文关键词:Cu₂O/Agnanocomposite, antibacterialproperties, antibacterialmechanism 基金项目:江苏理工学院人才引进项目（KYY17021）江苏省研究生培养创新工程研究生科研与实践创新计划（SJCX18-1001）

作者	单位	E-mail
吴静	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001	664363077@qq.com
施梦洁	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
匡淑敏	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
吴娟	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
林伟	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
张曼莹	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
贺香红	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001
梁国斌	江苏理工学院化学与环境工程学院 江苏省常州市钟楼区 213001

摘要点击次数:1157 全文下载次数:0 中文摘要: 本实验以醋酸铜为铜源、硝酸银为银源并利用天然蜂蜜中的葡萄糖与还原酶为还原剂在不存在模板剂无需高压反应釜的条件下、环保地、简便地制备了粒径为数百纳米的Cu₂O/Ag复合材料。并采用X射线衍射(XRD),扫描电子显微镜(SEM)对材料的结构与形貌进行了表征。通过抑菌圈法证明Cu₂O/Ag复合材料相比Cu₂O对大肠杆菌有着更好的抑菌性能,并找到了合成具有优异抗菌性能Cu₂O/Ag复合材料最适的硝酸银添加量,通过分析Cu₂O/Ag对大肠杆菌生长曲线影响得知当Cu₂O/Ag复合材料的浓度达到10μg/mL时Cu₂O/Ag复合材料能够彻底抑制大肠杆菌的生长。通过利用SEM观察Cu₂O/Ag复合材料对大肠杆菌作用过程中菌种形貌的变化得知Cu₂O/Ag复合材料对大肠杆菌的抗菌作用机理是通过破坏细胞膜结构使细菌断裂成小段进而将细菌彻底分解为大分子。证明Cu₂O/Ag复合材料在作为抗菌剂的领域内具有潜在的实际应用价值。 英文摘要: In this experiment, copper acetate was used as the copper source, silver nitrate was used as the silver source, and glucose and reductase in natural honey were used as reducing agents. The particle size was prepared environmentally and conveniently without the need for a high pressure reactor in the absence of a template. Hundreds of nanometers of Cu₂O/Ag composites. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the structure and morphology of the material. It was proved by the inhibition zone method that Cu₂O/Ag composites have better antibacterial properties against Escherichia coli than Cu₂O, and the optimum amount of silver nitrate added to synthesize Cu₂O/Ag composites with excellent antibacterial properties was found. By analyzing Cu₂O/ The effect of Ag on E. coli growth curve shows that Cu₂O/Ag composite can completely inhibit the growth of E. coli when the concentration of Cu₂O/Ag composite reaches 10μg/mL. By using SEM to observe the changes of the morphology of Cu₂O/Ag composites in the process of Escherichia coli, it is known that the antibacterial mechanism of Cu₂O/Ag composites on Escherichia coli is to break the bacteria into small segments and then completely decompose the bacteria by destroying the cell membrane structure. For large molecules. It is proved that Cu₂O/Ag composites have potential practical application value in the field of antibacterial agents. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书附件1 -->