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  • Title: Surface-enhanced Raman scattering on silver nanostructured films prepared by spray-deposition.
    Author: Brayner R, Iglesias R, Truong S, Beji Z, Felidj N, Fiévet F, Aubard J.
    Journal: Langmuir; 2010 Nov 16; 26(22):17465-9. PubMed ID: 20942468.
    Abstract:
    Silver nanostructured films were directly prepared by spray deposition of preformed polyol-based Ag-PVP nanoparticles. These homogeneous films of high optical quality were tested as SERS-active substrates. Laser excitation at 514.5 nm within the red part of the plasmon band leads to intense and reproducible SERS spectra of acridine, used as the probe molecule. From SERS measurements at different pH values, it was possible to determine the apparent pK(a) of acridine and to obtain specific surface properties of the film. Finally, these SERS titrations along with enhancement factor estimates allowed us to further depict the nature of the films.
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