中文摘要：

以聚乙二醇（PEG）为原料,经4步反应合成了一种端基为二茂铁（FcH）的PEG硫醇配体（Fc-PEG-SH）。采用两相法制备了油胺（OAm）保护的金纳米粒子（OAm/nanoAu）。采用配体交换法合成了二茂铁功能化的水溶性金纳米粒子（Fc-PEG/nanoAu）,其结构和性能经UV-Vis,1HNMR,IR,TGA,XPS,TEM及循环伏安法表征和分析。结果表明：Fc-PEG/nanoAu粒径为4 nm,且分散性良好;氧化电位较Fc-PEG-SH降低。

英文摘要：

PEG mercaptan ligand with ferrocene end-group（Fc-PEG-SH） was synthesized from polyglycol（PEG） by a four-step reaction.Oleylamine（OAm） coated gold nanoparticles（OAm/nanoAu） were prepared by two-phase method.A ferrocene-functionalized and water-soluble gold nanoparticle（Fc-PEG/nanoAu） were synthesized by the ligand-exchange method.The structures and performance of gold nanoparticle were characterized by UV-Vis,1H NMR,IR,TGA,XPS,TEM and cyclic voltammetry.The results showed that the particle size of gold nanoparticle were 4 nm,dispersion property were good,and oxidation peak current was increased.