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Gold Nanoparticle Synthesis
Published on: July 10, 2021
Fast and cost-effective purification of gold nanoparticles in the 20-250 nm size range by continuous density gradient
Dennis Steinigeweg1, Max Schütz, Mohammad Salehi
1Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany.
Small (Weinheim an Der Bergstrasse, Germany)
|June 29, 2011
Abstract:
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.
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