论文标题
多孔结构化AU胶体：形态学，光学和抗菌活性的见解
Porous Structured Au Colloids: Insights in to Morphology, Optical and Antimicrobial Activity
论文作者
论文摘要
通过元素解离法从散装纳米多孔AU制备了多孔结构化的Au胶体。显微镜技术（扫描电子显微镜和原子力显微镜），UV-VIS光谱法和区域扩散方法分别用于研究其形态学，光学特性和抗微生物活性，分别针对革兰氏阳性和革兰氏阴性细菌菌株。结果表明，多孔结构的AU胶体悬浮液具有出色的光学和抗菌特性。光学研究中存在的明显特征是在477和546 nm处的两个等离子体共振峰，这些峰在520 nm的波长下重叠。 SEM和AFM的形态研究表明，Au胶体是用骨骼孔和韧带结构组装而成的。对抗菌活性测试的分析表明，对测试的革兰氏阳性和革兰氏阴性细菌菌株具有更大的抑制作用。
Porous structured Au colloids have been prepared from bulk nanoporous Au by means of an element dissociation method. The microscopic techniques (scanning electron microscope and atomic force microscope), UV-Vis spectroscopy and zone diffusion method have been employed to study their morphology, optical property and anti-microbial activity against Gram-positive and Gram-negative bacterial strains, respectively. It is shown that the porous structured Au colloidal suspension exhibit excellent optical and antimicrobial properties. The noticeable features present in the optical studies are two Plasmon resonance peaks at 477 and 546 nm with overlapping of these peaks at a wavelength of 520 nm. The morphology studies by SEM and AFM indicate that the Au colloids are rod shaped with an assembly of skeletal pore and ligament structure. The analysis of the antimicrobial activity testing reveals that the porous structured Au colloids have greater inhibitory effect against the tested Gram-positive and Gram-negative bacterial strains.
