A chemical-responsive supramolecular hydrogel from modified cycloclextrins

被引:152
作者
Deng, Wei [1 ]
Yamaguchi, Hiroyasu [1 ]
Takashima, Yoshinori [1 ]
Harada, Akira [1 ]
机构
[1] Osaka Univ, Grad Sch Sci, Dept Macromol Sci, Toyonaka, Osaka 5600043, Japan
关键词
cyclodextrins; host-guest systems; hydrogels; self-assembly; supramolecular chemistry;
D O I
10.1002/anie.200701272
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) No backbone required: A supramolecular hydrogel has been synthesized from a guest-modified cyclodextrin (CD) without a polymer backbone. The β-CD forms supramolecular fibrils through host-guest interactions, and then hydrogen bonds between the CDs cross-link the fibrils to give a hydrogel. Gel-to-sol transitions can be effected by adding a competitive guest or a denaturing reagent (see example). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:5144 / 5147
页数:4
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