Size-selective separation of gold nanoparticles using isoelectric focusing electrophoresis (IEF)
Size-selective separation of gold nanoparticles using isoelectric focusing electrophoresis (IEF)
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DOI：
10.1039/b413719a
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发表时间：
2005-01-01
影响因子：
4.9
通讯作者：
Girault, HH
中科院分区：
文献类型：
--
作者：
Arnaud, I;Abid, JP;Girault, HH
采用聚丙烯酰胺pH梯度凝胶等电聚焦技术研究了以巯基丁二酸为配体合成的金纳米粒子的粒径分布。纳米颗粒的等电点显示为尺寸依赖性的，允许通过电泳进行分级。每个级分具有窄的尺寸分布，标准偏差低于0.4 nm。
Isoelectric focusing in a polyacrylamide pH gradient gel is used to analyze the size distribution of gold nanoparticles synthesized by a chemical route with mercaptosuccinic acid as a ligand. The isoelectric point of the nanoparticles is shown to be size dependent, allowing fractionation by electrophoresis. Each fraction has a narrow size distribution with a standard deviation lower than 0.4 nm.