Study on the effect of electrostatic interaction on core-shell nanoparticles preparation with microemulsion technique

被引：7

作者：

He, XX ^{[1
]}

Wang, KM ^{[1
]}

Tan, WH ^{[1
]}

Chen, JY ^{[1
]}

Duan, JH ^{[1
]}

Yuan, Y ^{[1
]}

Lin, X ^{[1
]}

机构：

[1] Hunan Univ, State Key Chemobiosensing & Chemometr, Ctr Biomed Engn, Inst Life Sci & Biol Technol,Engn Res Ctr Bionano, Changsha 410082, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2005年 / 50卷 / 24期

基金：

中国国家自然科学基金;

关键词：

microemulsion; core-shell NPs; electrostatic interaction; stability of NPs;

D O I：

10.1360/982005-689

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The routine method for preparation of silica core-shell nanoparticles (NPs) is to carry out nucleation and shell coating through the hydrolysis of silane in water in oil (W/O) microemulsion to form three-dimensional netted silica shell. We found that electrostatic interaction of the core materials with shell materials would determine whether the stable core-shell silica NPs formed or not. The traditional important factors such as molecular weight of core materials or the thickness of the shell have no obvious relationship with it. And the stability of the core-shell silica NPs can be improved after changing the electric charge polarity by regulating the experiment condition of relevant materials if some core materials cannot be doped inside to form the stable core-shell silica NPs based on the traditional method, which provided experimental and theoretic foundation for preparation and application of the core-shell silica NPs.

引用

页码：2821 / 2826

页数：6

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