Controlled release of guest molecules from mesoporous silica particles based on a pH-responsive polypseudorotaxane motif

被引：398

作者：

Park, Chiyoung

Oh, Kyoungho

Lee, Sang Cheon

Kim, Chulhee ^{[1
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Hyperstructured Organ Mat Res Ctr, Inchon 402751, South Korea

[2] Korea Inst Ceram Engn & Technol, Nanomat Applicat Div, Seoul 153801, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 09期

关键词：

cyclodextrins; host-guest systems; mesoporous materials; rotaxanes; supramolecular chemistry;

D O I：

10.1002/anie.200603404

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Stringing them along: The pores of a mesoporous silica particle were filled with guest molecules and then blocked by threading cyclodextrin molecules (CDs) onto the surface-grafted polyethylenimine (PEI) chains at pH 11. At pH 5.5, the guest molecules can be released from the pores of the particle by reversible dethreading of the CDs from the PEI chains. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1455 / 1457

页数：3

共 29 条

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