English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/76073
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Ag nanoparticles prepared by laser photoreduction as substrates for in situ surface-enhanced raman scattering analysis of dyes

AuthorsCañamares, María Vega ; García-Ramos, José Vicente ; Gómez Varga, J.D.; Domingo, Concepción ; Sánchez-Cortés, Santiago
Issue Date2007
PublisherAmerican Chemical Society
CitationLangmuir : the ACS journal of surfaces and colloids 23: 5210- 5215 (2007)
AbstractIn this work Ag nanoparticles (AgNP) with surface-enhanced Raman scattering (SERS) activity were prepared and immobilized by laser irradiation on a water/ solid interface where the aqueous phase contains the Ag+ cation and the solid surface is of hydrophilic nature (glass and cellulose). The so-prepared AgNP demonstrated a high SERS effectiveness in the detection of dispersed adsorbates such as the case of the anthraquinonic dye alizarin. The size and SERS effectiveness of AgNP increases with the irradiation time, the laser power, and the cation concentration. Laser-induced AgNP can be classified into two classes attending to the morphology: spherical and planar. The latter are formed after longer irradiation times, being more active regarding the SERS efficiency. Ag photoreduction can be employed for in situ detection of the dye alizarin, but when the dye is placed on a hydrophilic substrate. Even so, this in situ SERS technique could be attractive for analytical applications involving the in situ detection of the analyzed species, such as the case of dyes in artistical objects, textiles, foods, and surface analysis in general. © 2007 American Chemical Society.
Identifiersdoi: 10.1021/la063445v
issn: 0743-7463
Appears in Collections:(CFMAC-IEM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.