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Title: Raman imaging studies on the adsorption of methylene blue species onto silver modified linen fibers
Author: Fateixa, Sara
Wilhelm, Manon
Jorge, Alípio M.
Nogueira, Helena I. S.
Trindade, Tito
Keywords: Raman imaging
Surface-enhanced resonance Raman scattering
Textile fibers
Methylene blue species
Issue Date: Jul-2017
Publisher: Wiley-Blackwell
Abstract: We demonstrate in this research that surface-enhanced resonance Raman scattering combined with Raman imaging can be effectively used for analysis of distinct forms of organic dyes in antimicrobial Ag-loaded textile fibers. The potential of this approach, as a non-destructive characterization method of fabrics, was evaluated with Raman studies performed on the molecular forms of methylene blue (MB), used here as the organic dye model. On the basis of the surface-enhanced Raman scattering spectra of MB monomers and dimers, the Raman imaging of Ag-loaded linen fibers previously treated with MB solution was performed and then used for identification of the adsorbate species in distinct regions of the substrates. A semi-quantitative analysis is then performed by considering the area of the Raman bands ascribed to the MB molecular forms and image analysis applied to Raman images.
Peer review: yes
DOI: 10.1002/jrs.5136
ISSN: 0377-0486
Appears in Collections:CICECO - Artigos

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