标题：Controlled transformation from nanorods to vesicles induced by cyclomaltoheptaoses (β-cyclodextrins)
作者：Sun, T.;Zhang, H.;Kong, L.;Qiao, H.;Li, Y.;Xin, F.;Hao, A.
作者机构：[Sun, T] School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University 更多
通讯作者地址：[Hao, AY]Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China.
摘要：A modified cyclomaltoheptaose (β-cyclodextrin) containing an anthraquinone moiety, mono[6-deoxy-N-n-hexylamino-(N′-1-anthraquinone)]- β-cyclodextrin (1), which can self-assemble into nanorods in aqueous solution, was synthesized. Interestingly, upon the addition of natural cyclodextrin, the nanorods could transform into bilayer vesicles, which were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), dynamic light scattering (DLS), and epi-fluorescence microscopy (EFM). A transformation mechanism is suggested based on the results of ~1H NMR, 2D NMR ROESY, FTIR, and UV-vis spectra. The response of the vesicles to changing pH and adding Cu~(2+) was also tested. Our research may pave the way to the development of new intelligent materials and biomaterials.