Bo Lili, Yang Wu, Chen Miao, Gao Jinzhang, Xue Qunji
College of Chemistry and Chemical Engineering, Academy of West-China Resources Utilization, Northwest Normal University, Lanzhou 730070, P. R. China.
Chem Biodivers. 2009 Jan;6(1):111-6. doi: 10.1002/cbdv.200800112.
Stable silver colloids were prepared using polyethylene glycol (PEG) as an environment friendly reduction agent and stabilizer, and with H2O as solvent. The Ag colloids were characterized by UV/VIS spectroscopy, transmission electron microscopy (TEM), and atom force microscopy (AFM). TEM and AFM of the sample showed uniform and monodispersive particle distribution in the colloids. The particle size is found to be less than 10 nm. The antibacterial activity of the Ag colloids was also studied. The results showed that the sample had high antibacterial activity toward Gram-positive and Gram-negative bacteria, and fungi.
使用聚乙二醇（PEG）作为环境友好型还原剂和稳定剂，以水作为溶剂，制备了稳定的银胶体。通过紫外可见光谱、透射电子显微镜（TEM）和原子力显微镜（AFM）对银胶体进行了表征。样品的TEM和AFM显示胶体中的颗粒分布均匀且单分散。发现颗粒尺寸小于10纳米。还研究了银胶体的抗菌活性。结果表明，该样品对革兰氏阳性菌、革兰氏阴性菌和真菌具有高抗菌活性。
