Fast and Cost-Effective Purification of Gold Nanoparticles in the 20-250 nm Size Range by Continuous Density Gradient Centrifugation
Fast and Cost-Effective Purification of Gold Nanoparticles in the 20-250 nm Size Range by Continuous Density Gradient Centrifugation
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DOI：
10.1002/smll.201100663
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发表时间：
2011-09-05
期刊：
影响因子：
13.3
通讯作者：
Schluecker, Sebastian
中科院分区：
文献类型：
--
作者：
Steinigeweg, Dennis;Schuetz, Max;Schluecker, Sebastian
提出了一种多层准连续密度梯度离心方法，用于分离 20-250 nm 金属胶体，具有高尺寸分辨率，同时保持颗粒稳定性。含有单分散金纳米球及其簇（特别是金二聚体）的胶体混合物的纯化收率高达 94%。快速方法使用标准实验室设备。
A multilayer quasi-continuous density gradient centrifugation method for separating 20-250 nm metal colloids with high size resolution while maintaining particle stability is presented. Colloidal mixtures containing monodisperse gold nanospheres and clusters thereof, in particular, gold dimers, are purified with yields up to 94%. The rapid method uses standard laboratory equipment.