Determination of colloidal gold nanoparticle surface areas, concentrations, and sizes through quantitative ligand adsorption.

Abstract

Determination of the true surface areas, concentrations, and particle sizes of gold nanoparticles (AuNPs) is a challenging issue due to the nanoparticle morphological irregularity, surface roughness, and size distributions. A ligand adsorption-based technique for determining AuNP surface areas in solution is reported. Using a water-soluble, stable, and… (More)
DOI: 10.1007/s00216-012-6489-2

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