稳态荧光及各向异性方法研究环糊精纳米管的生成  

Studies on the Formation of Cyclodextrin Nanotube by Fluorescence and Anisotropy Measurements

作　　者：张春芬[1] 沈兴海[1] 高宏成[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《光谱学与光谱分析》2003年第2期217-220,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金资助(批准号:29901001)

摘　　要：本文运用稳态荧光和稳态荧光各向异性方法,研究了双喹啉(BQ)和1,1’-(甲撑双-1,4-苯基)二顺丁烯二酰亚胺(MDP-BMI)分子分别与α-,β-,和γ-环糊精(CD)的作用。实验结果表明,这两个客体分子与不同环糊精的作用不同。它们均可以和γ-CD生成纳米管状聚集物,在MDP-BMI-β-CD体系中也有纳米管存在,而在其它情况下,只有简单的环糊精包合物生成。Steady-state fluorescence and anisotropy measurements have been used to investigate the interaction of 2, 2'-biquinoline (BQ) and 1,1'-(methylenedi-1,4-phenylene)bismaleimide (MDP-BMI) with alpha,beta-, and gamma-cyclodextrins (CDs). It was found that the reaction pattems between fluorescence molecules and CDs are remarkably different. They can form a simple inclusion complex with alpha-CD, while nanotubes can be formed in the presence of gamma-CD. Moreover, MDP-BMI can form nanotube with beta-CD at higher concentration.

关 键 词：各向异性方法 荧光 环糊精 纳米管 包合物 

分 类 号：O636.12[理学—高分子化学] TB383[理学—化学]