| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1634927 | Procedia Materials Science | 2012 | 7 Pages |
Abstract
Silver nanoparticles aminosilane capped were obtained as stable colloids. FTIR spectrum of these nanoparticles showed a strong interaction between amine groups and silver surface, being this property the source of the high stability of the colloidal particles. UV-visible spectrum showed the typical absorption owing the resonance of localized surface plasmon (LSPR). We show that the optical properties of the colloidal nanoparticles were influenced by medium conditions. A continuous shift of the maximum of absorption to longer wavelength was observed with the enhancement of Pb2+ and Cd2+concentrations. In this way, these nanoparticles can be used as LSPR sensors.
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