Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

被引:14
作者
Pham, Xuan-Hung [1 ]
Kyeong, San [2 ]
Jang, Jaein [3 ]
Kim, Hyung-Mo [1 ]
Kim, Jaehi [2 ]
Jung, Seunho [1 ]
Lee, Yoon-Sik [2 ]
Jun, Bong-Hyun [1 ]
Chung, Woo-Jae [3 ]
机构
[1] Konkuk Univ, Dept Biosci & Biotechnol, Seoul 143701, South Korea
[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 151747, South Korea
[3] Sungkyunkwan Univ, Coll Biotechnol & Bioengn, Dept Genet Engn, Suwon 440746, South Korea
基金
新加坡国家研究基金会;
关键词
MAGNETIC NANOPARTICLES; CHROMATOGRAPHIC SEPARATION; MANIPULATION PLATFORM; SERS NANOPROBES; QUANTUM DOTS; CELL; IMMUNOASSAY; PERFORMANCE; FABRICATION; PARTICLES;
D O I
10.1155/2016/1730403
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This paper presents a facile method for preparation of silica coated monodisperse superparamagnetic microsphere. Herein, monodisperse porous polystyrene-divinylbenzene microbeads were prepared by seeded emulsion polymerization and subsequently sulfonated with acetic acid/H2SO4. The as-prepared sulfonated macroporous beads were magnetized in presence of Fe2+/Fe3+ under alkaline condition and were subjected to silica coating by sol-gel process, providing water compatibility, easily modifiable surface form, and chemical stability. FE-SEM, TEM, FT-IR, and TGA were employed to characterize the silica coated monodisperse magnetic beads (similar to 7.5 mu m). The proposed monodisperse magnetic beads can be used as mobile solid phase particles candidate for protein and DNA separation.
引用
收藏
页数:9
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