Monosized Core-Shell Fe3O4(Fe)/Au Multifunctional Nanocrystals

被引：23

作者：

Liu, Hong-Ling ^{[3
,4
]}

Wu, Jun-Hua ^{[2
]}

Min, Ji Hyun ^{[1
]}

Lee, Ju Hun ^{[1
]}

Kim, Young Keun ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

[2] Korea Univ, Res Inst Engn & Technol, Seoul 136713, South Korea

[3] Korea Univ, Inst Nanosci, Seoul 136713, South Korea

[4] Henan Univ, Sch Chem & Chem Engn, Kaifeng 475001, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 02期

关键词：

Core-Shell; Nanoparticles; Multifunctional; Magnetic; Optical; GOLD NANOPARTICLES; IRON NANOPARTICLES; OXIDATION; THERAPY;

D O I：

10.1166/jnn.2009.C018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have synthesized highly crystalline, monosized Fe3O4(Fe)/Au magnetic-optic multifunctional nanocrystals using a modified polyol process. The formation of the core-shell structure was achieved in two consecutive steps, seeding the Fe3O4(Fe) core followed by coating the gold shell. The characterization demonstrates the core-shell nanostructure and provides particle size and distribution of the nanocrystals. The spectroscopic analysis gives three Fe oxidation states (Fe-0, Fe+2 and Fe+3) in the core and the surface plasmon characteristic of the Au nanoshell, while the magnetic measurements show excellent susceptibility of the nanocrystals.

引用

页码：754 / 758

页数：5

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