Fabrication and Manipulation of Gold 1D Chain Assemblies Using Magnetically Controllable Gold Nanoparticles

Bulletin of the Korean chemical society

Wook Park¹  Junhoi Kim¹  Lily Nari Kim¹  Sung-Eun Choi¹  Sunghoon Kwon¹  Eun-Geun Kim¹ 

关键词: Magnetic core/gold nanoshell;    Gold nanoparticle;    Self-assembly;    Magnetic manipulation;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We have developed magnetically controllable gold nanoparticles by synthesizing superparamagnetic Fe3O4 core/gold shell nanoparticles. The core/shell particles have the capability of forming gold 1D chains in the presence of an external magnetic field. Here we demonstrate dynamic and reversible self-assembly of the gold 1D chain structures in an aqueous solution without any templates or physical or chemical attachment. The spatial configuration of gold chains can be arbitrarily manipulated by controlling the direction of a magnetic field. This technique can provide arbitrary manipulation of gold 1D chains for fabrication purpose. To demonstrate this capability, we present a technique for immobilization of the gold particle chains on a glass substrate.

【 授权许可】

Unknown