A General pH-Responsive Supramolecular Nanovalve Based on Mesoporous Organosilica Hollow Nanospheres

被引:74
作者
Guo, Wanping [1 ]
Wang, Jing [1 ]
Lee, Sang-Joon [1 ]
Dong, Fuping [1 ]
Park, Sung Soo [1 ]
Ha, Chang-Sik [1 ]
机构
[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea
关键词
delivery systems; mesoporous materials; pH responsive; rotaxanes; supramolecular chemistry; CONTROLLED-RELEASE; MOLECULAR MACHINES; SILICA SUPPORTS; IMMOBILIZATION; NANOCONTAINERS; CYCLODEXTRIN;
D O I
10.1002/chem.201000980
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Smart release on demand: A general pH-responsive supramolecular nano-valve operating in aqueous media has been designed by using mesoporous organosilica hollow nanospheres as nanocontainers (see picture). The nanovalve is capable of storing guest molecules within the hollow core and mesopore shell and releasing them on demand by acid/base triggering of the capping molecule, demonstrating a delicate vehicle for controlled release. (Figure Presented) © 2010 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim.
引用
收藏
页码:8641 / 8646
页数:6
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