Poly(allylamine) stabilized iron oxide magnetic nanoparticles

被引：21

作者：

El Khoury, Jouliana M.

Caruntu, Daniela

O' Connor, Charles J. ^{[1
]}

Jeong, Kwang-Un

Cheng, Stephen Z. D.

Hu, Jun

机构：

[1] Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA

[2] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA

[3] Univ Akron, Dept Chem, Akron, OH 44325 USA

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2007年 / 9卷 / 05期

关键词：

iron oxide; magnetic nanoparticles; poly(allylamine); polymer coating; particle dispersion; surface modification; clusters; colloids; biomedical applications;

D O I：

10.1007/s11051-006-9205-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper describes a new method for the dispersing and surface-functionalization of metal oxide magnetic nanoparticles (10 nm) with poly(allylamine) (PAA). In this approach, Fe3O4 nanoparticles, prepared with diethanolamine (DEA) as the surface capping agent in diethyleneglycol (DEG) and methanol, are ligand exchanged with PAA. This method allows the dispersing of magnetic nanoparticles into individual or small clusters of 2-5 nanoparticles in aqueous solutions. The resulting nanoparticles are water soluble and stable for months. The PAA stabilized Fe3O4 nanoparticles are characterized by TEM, TGA, and FT-IR. The PAA-coated Fe3O4 nanoparticles will allow further chemical tailoring and engineering of their surfaces for biomedical applications.

引用

页码：959 / 964

页数：6

共 21 条

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