Adsorption of BSA on monodispersed hollow silica nanospheres

被引：31
作者：
Hwang, Min-Jin
Kim, Ok-Hee
Shim, Wang-Geun
Moon, Hee [1 ]
机构：
[1] Chonnam Natl Univ, Ctr Funct Nano Fine Chem, Kwangju 500757, South Korea
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2013年 / 182卷
基金：
新加坡国家研究基金会;
关键词：
Monodispersed hollow silica nanospheres; Adsorption equilibrium; Adsorption kinetics; Bovine serum albumin; Characterization of porous materials; BOVINE SERUM-ALBUMIN; MESOPOROUS SILICA; FUNCTIONALIZED SBA-15; SPHERICAL COLLOIDS; SURFACE-PROPERTIES; MASS-PRODUCTION; NANOPARTICLES; SPHERES; IMMOBILIZATION; PARTICLES;
D O I：
10.1016/j.micromeso.2013.08.022
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Monodispersed hollow silica nanospheres were synthesized in a three step process of emulsion polymerization, the sol-gel reaction, and core dissolution. The physicochemical characteristics of the nanospheres were investigated by scanning electron microscopic, transmission electron microscopic, thermogravimetric, and nitrogen adsorption analyses. The average diameter of the hollow silica nanospheres was about 300 nm, and shell thickness was about 17 nm. In addition, the adsorption characteristics of bovine serum albumin (BSA) were evaluated in terms of initial concentration, contact time, pH, and temperature. Adsorption equilibrium and kinetic data were well explained in the entire experimental region by Langmuir isotherm and pseudo-second-order kinetic models, respectively. Our results show that the synthesized hollow silica nanospheres could be used as a good medium for BSA adsorption. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码：81 / 86
页数：6
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