Water Dispersible Fe/Fe-Oxide Core-Shell Structured Nanoparticles for Potential Biomedical Applications

被引：5

作者：

Khurshid, H. ^{[1
]}

Balakrishnan, S. ^{[1
]}

Colak, L. ^{[1
]}

Bonder, M. J. ^{[1
]}

Hadjipanayis, G. C. ^{[1
]}

机构：

[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

基金：

美国国家科学基金会;

关键词：

Biomedical applications of magnetic nanoparticles and MRI; core-shell structured nanoparticles; iron nanoparticles;

D O I：

10.1109/TMAG.2009.2026629

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we report the synthesis and characterization of water dispersible core-shell structured Fe/Fe-oxide with average size 13 +/- 1.4 nm and Fe-oxide nanoparticles. Unlike the previously reported different approaches, both types of particles can be synthesized by following the same route with a small variation in the Fe(CO)(5) molar concentration and oxygen free environments. The oleate/oleylamine coated nanoparticles were surface modified with tetra-methyl-ammonium-hydroxide (TMAOH) to make them water dispersible. TGA analysis provided direct evidence that TMAOH adds to the surface of the oleic acid and oleylamine coated particles making them well disperse and stable in water as is suggested from the zeta potential measurements also.

引用

页码：4877 / 4879

页数：3

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