共搜索到152条信息,每页显示10条信息,共16页。用时:0小时0分0秒375毫秒
of silver-doped titania powders is excellent against E.coli and S. aureus, and the antibacterial activity of powders weakens with the increase of the calcination temperature. Key words: silver... of the antibacterial activity of silver-doped titania powder against E. coli and S. aureus for 24 h are shown in Fig.6. It can be seen that neither E. coli nor S. aureus can survive in solution containing......
微生物的多样性进行研究.研究结果表明:8株细菌分别划归为4个纲(α-Proteobacteria,β-Proteobacteria,γ-Proteobacteria和Bacilli)的7个属(Bacillus,Acinetobacter,Staphylococcus,Pandoraea,Novosphingobium,Cupriavidus和Comamonas);霉菌属于Aspergillus... of the fungi strain), the bacteria belong to seven genera (Bacillus, Acinetobacter, Staphylococcus, Pandoraea, Novosphingobium, Cupriavidus and Comamonas) of four different classes (Bacilli, α......
载Ag羟基磷灰石/硅藻土-高岭土复合陶瓷的制备及抗菌性能邓城1,漆小鹏1,李倩1,宋秋华2,邓扬悟21. 江西理工大学材料科学与工程学院2. 江西理工大学资源与环境工程学院摘 要:为通过滤除水中微生物和杂质而改善水质,首先采用一步共沉淀法合成了载Ag羟基磷灰石(Ag-HA)抗菌粉体,并将其与硅藻土和高岭土等原料复合,通过烧结法制备了Ag-HA/硅藻土-高岭土复合陶瓷;然后,通过XRD,SEM,EDS和原子吸收分光光度计对Ag-HA/硅藻土-高岭土复合陶瓷的结构进行了表征;最后,研究了Ag-HA/硅藻土-高岭......
水热掺Zn的TiO2纳米管的结构表征张妍妮,憨勇,张兰西安交通大学金属强度国家重点实验室摘 要:通过阳极氧化及水热技术制备了掺Zn的纳米管层.采用用场发射扫描电镜,XRD衍射图谱分析了水热前后纳米管的形貌及结构特征,采用划痕法评价了纳米管的结合强度,并评价了掺Zn的纳米管膜层对S.aureus ATCC 25923的抗菌性.结果表明,阳极氧化TiO2纳米管由非晶构成;水热处理后,纳米管的物相以Zn2Ti3O8为主;随着水热时乙酸锌浓度的增加,膜层中Zn的含量缓慢增加,纳米管的管壁厚度逐渐降低,纳米管内径变化......
核-壳纳米Ag@ZrO2复合材料的制备及其抑菌性能郭少波1,马剑琪1,2,兰阿峰1,葛红光2,刘栋1,王菲11. 陕西理工学院生物科学与工程学院2. 陕西理工学院化学与环境科学学院摘 要:首先,采用溶胶-凝胶法以锆酸四丁酯为原料制备了直径约为230nm单分散性ZrO2亚微球;然后,以ZrO2为前体,加入少量AgNO3,用物理方法将Sn2+离子吸附在ZrO2表面,Ag+被还原成Ag0负载在ZrO2表面合成Ag@ZrO2晶种,加入甲醛合成核-壳纳米Ag@ZrO2复合材料;最后用TEM,XRD和UV-Vis对制备......
聚六亚甲基胍盐酸盐功能化中空纳米二氧化硅制备新型抗菌剂的研究张孜文,张康民,杨建军,吴庆云,吴明元,张建安,刘久逸安徽大学化学化工学院安徽省绿色高分子重点实验室摘 要:提出一种新型抗菌材料聚六亚甲基胍盐酸盐(PHMG)接枝的中空纳米二氧化硅(HSN-PHMG)的简便合成方法,PHMG的接枝提高了HSN的水分散性和抗菌性.用扫描电镜(SEM),透射电镜(TEM)表征纳米二氧化硅的中空结构;傅里叶变换红外光谱(FTIR),X射线光电子能谱(XPS)和热失重分析(TGA)表征PHMG的成功接枝,HSN-PHMG中......
inhibitory concentration) of chemically synthesized nanoparticles with 30–40 nm in size are 2.8 μg/m L, 4.37 μg/m L, 13.5 μg/m L and 2.81 μg/m L for E. coli, S. aureus, B. subtillis and Salmonella, respectively. Whereas laser ablated nanoparticles exhibit MIC of 2.10 μg/m L, 2.36 μg/m L and 2.68 μg/m L for E. coli, S. aureus and Salmonella, respectively.关键词:......
plasmon resonance of Ag NPs and large light scattering cross-sections of PSA nanospheres. They are further developed as encoding tags for dual detection of S. aureus and E. coli after assembling corresponding aptamers, which demonstrate ultralow detection limits of 8 cell L-1 for S. aureus and 2 cell L-1 for E. coli. Such a bioassay indicates a point-of-care strategy of ultrasensitively biomedical......
Preparation and Characterization of Plasma Cu Surface Modified Stainless Steel张翔宇,唐宾Research Institute of Surface Engineering,Taiyuan University of Technology摘 要:Cu modified layer was prepared on the surface of AISI304 stainless steel by plasma surface all......
聚六亚甲基胍盐酸盐改性非离子型抗菌水性聚氨酯脲分散体的制备与性能张孜文,杨建军,吴庆云,吴明元,张建安,刘久逸安徽大学化学化工学院安徽省绿色高分子重点实验室摘 要:以盐酸胍(GHC)和己二胺(HMDA)为原料合成了B型聚六亚甲基胍盐酸盐(PHMG),并通过电喷雾离子飞行时间质谱(ESI-TOF-MS)进行了表征,然后将其作为大分子后扩链剂引入到非离子型抗菌水性聚氨酯脲分散体中.红外光谱,热重和拉伸测试表征了PHMG的成功引入,且PHMG会增加胶膜中的氢键作用,使胶膜的热稳定性和力学性能增加;接触角测试表明P......