Probe-induced self-aggregation of γ-cyclodextrin:: Formation of extended nanotubular suprastructure

被引：36
作者：
Das, Paramita [1 ]
Mallick, Arabinda [1 ]
Sarkar, Deboleena [1 ]
Chattopadhyay, Nitin [1 ]
机构：
[1] Jadavpur Univ, Dept Chem, Kolkata 700032, India
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 26期
关键词：
D O I：
10.1021/jp801951j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Time-resolved fluorescence anisotropy decay analysis, dynamic light scattering (DLS), and transmission electron microscopy (TEM) techniques have been exploited to substantiate and characterize the formation of a substrate-anchored gamma-cyclodextrin nanotubular suprastructure in aqueous medium, the diameter and the length of the entity being similar to 250 nm and a few micrometers, respectively. Similar aggregation is not observed with alpha- and beta-cyclodextrins. Dimensions of the substrate and the cyclodextrin cavity have been ascribed to control the formation of the substrate-induced elongated aggregates. The report projects a simple way to design nanotubes of variable dimensions with a proper choice of the anchoring probe and the cyclodextrin.
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收藏
页码：9600 / 9603
页数：4
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