Cucurbit[7]uril: A simple macrocyclic, pH-triggered hydrogelator exhibiting guest-induced stimuli-responsive behavior

被引：213

作者：

Hwang, Ilha

Jeon, Woo Sung

Kim, Hee-Joon

Kim, Dongwoo

Kim, Hyunuk

Selvapalam, Narayanan

Fujita, Norifumi

Shinkai, Seiji

Kim, Kimoon

机构：

[1] Pohang Univ Sci & Technol, Natl Creat Res Initiat Ctr Smart Supramol, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Dept Chem, Pohang 790784, South Korea

[3] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Nishi Ku, Fukuoka 8190395, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 1-2期

关键词：

gels; host-guest systems; hydrogelators; self-assembly; supramolecular chemistry;

D O I：

10.1002/anie.200603149

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Without modification of its periphery, cucurbit[7]uril (a macrocyclic cavitand comprising seven glycoluril units) forms a hydrogel. The gelation is thermoreversible and sensitive to pH, but is inhibited by the presence of alkali-metal ions and shows guest-induced stimuli-responsive behavior: upon addition of a small amount of a guest, it undergoes a reversible gel-sol transition with alternating UV irradiation and heat treatment (see picture). (Figure Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：210 / 213

页数：4

共 50 条

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