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Ewa M. Goldys and Mushtaq A. Sobhan Fluorescence of Colloidal Gold Nanoparticles is Controlled by the Surface Adsorbate Advanced Functional Materials 22

Version of Record online: 17 FEB 2012 | DOI: 10.1002/adfm.201102057

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The fluorescence emission/excitation energies of gold nanoparticles of various types are shown to follow variations in the electrostatic potential at their surface. The fluorescence shifts, the evolution of zeta potentials, and the fluorescence intensity trends are explained by a model of the principal fluorescence transitions that takes into account the nanoparticle surface ligands.

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