Synthesis and stabilization of monodisperse Fe nanoparticles
Synthesis and stabilization of monodisperse Fe nanoparticles
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DOI：
10.1021/ja063969h
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发表时间：
2006-08-23
影响因子：
15
通讯作者：
Sun, Shouheng
中科院分区：
文献类型：
--
作者：
Peng, Sheng;Wang, Chao;Sun, Shouheng
在油胺存在下，通过简单的一锅法热分解Fe（CO）5合成了单分散的Fe纳米颗粒。控制氧化的铁表面导致结晶的Fe 3 O 4壳，并导致在纳米粒子的化学和分散稳定性的显着增加。表面配体交换容易地应用于将核/壳纳米颗粒从疏水性转移到亲水性，并且形成在PBS中的稳定的水性纳米颗粒分散体。该功能化纳米颗粒适用于生物分子附着和生物医学应用。
Monodisperse Fe nanoparticles are synthesized via a simple one-pot thermal decomposition of Fe(CO)5in the presence of oleylamine. Controlled oxidation of the iron surface leads to crystalline Fe3O4shell and results in dramatic increase of chemical and dispersion stability of the nanoparticles. Surface ligand exchange is readily applied to transfer the core/shell nanoparticles from hydrophobic to hydrophilic, and a stable aqueous nanoparticle dispersion in PBS is formed. The functionalized nanoparticles are suitable for biomolecule attachment and biomedical applications.