以C60为媒介的网状金纳米粒子聚集体的构筑  

Network Gold Nanoparticle Aggregates Mediated by C_(60)

作　　者：李亮[1,2] 张衡益[1] 赵金[1] 刘育[1] 

机构地区：[1]南开大学化学系,元素有机国家重点实验室,天津300071 [2]上海应用技术学院化学与环境工程学院,上海201418

出　　处：《高等学校化学学报》2013年第7期1640-1645,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20932004,91227107)资助

摘　　要：通过全甲基化环糊精和卟啉之间的'Click'反应,合成了一种不对称环糊精修饰的卟啉衍生物,并对其结构进行了表征.该化合物与氯金酸作用可以形成平均粒径为5 nm的水溶性金纳米粒子,该金纳米粒子进一步与C60作用形成网状纳米聚集体,并通过紫外光谱和透射电子显微镜验证了聚集体的结构.Metal nanoassemblies have attracted considerable attention in the fields of nanotechnology and biotechnology, due to their unique chemical/optical, electronic and magnetic properties. The ＂Click chemistry＂ reaction of permethyl-β-cyclodextrin with porphyrin units led to the formation of a new asymmetric cyclodextrin-modified porphyrin derivative, which was characterized by 1H NMR spectroscopy and electrospray ionization mass spectrometry（ESI-MS）. After reaction of the derivative with chloroauric acid, the water-soluble gold nanoparticles（AuNPs） were obtained. The average particle size of AuNPs determined via transmission electron microscopy（TEM） was （5.0±0.8） nm. Then upon interaction with C60, the network aggregates were formed, and their structures were confirmed by UV-Vis absorption spectroscopy and TEM. The results showed that the fullerenes acted as a sort of ＂molecular glue＂, leading to the formation of soluble network aggregates, which may provide a new potential application in bioactive nanoscale materials.

关 键 词：环糊精 卟啉 金纳米粒子 C60 

分 类 号：O621.3[理学—有机化学]