A pH-sensitive controlled dual-drug release from meso-macroporous silica/multilayer-polyelectrolytes coated SBA-15 composites

被引:21
作者
Jin, Qumei [1 ]
Qu, Fengyu [1 ]
Jiang, Jingjie [1 ]
Dong, Yan [1 ]
Guo, Wei [1 ]
Lin, Huiming [1 ]
机构
[1] Harbin Normal Univ, Coll Chem & Chem Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 150025, Peoples R China
基金
黑龙江省自然科学基金; 中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词
SBA-15; MMC; PH-sensitive; Dual-drug delivery systems; BLOCK-COPOLYMER; DELIVERY; MICROCAPSULES; HOLLOW; NANOPARTICLES; NANOCAPSULES; NANOTUBES; HYDROGELS; MICELLES; COATINGS;
D O I
10.1007/s10971-013-3033-6
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A novel dual-drug delivery system based on mesoporous-macroporous silica/polyelectrolytes-SBA-15 has been synthesized. The structure and composition of these materials were characterized by powder X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and N-2 adsorption-desorption measurements. In this system, water-soluble metformin hydrochloride and fat-soluble ibuprofen were used as model drugs to study the controlled release behavior. The pH-controlled release of individual drugs was obtained by the primary release of metformin hydrochloride from polyelectrolytes-SBA-15 in acid condition and the predominant release of ibuprofen from MMC in alkaline environment. The results show that the polyelectrolytes-SBA-15/mesoporous-macroporous silica can be used as dual-drug release system and the individual drug can be controlled release with the change of pH value of the environment.
引用
收藏
页码:466 / 471
页数:6
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