Size-Selective Separation of Gold Nanoparticles using Isoelectric Focusing Electrophoresis (IEF)
- Arnaud, I.
- Abid, J.-P.
- Roussel, C.
- Girault, H. H.
DOIAbstract
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
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