Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 326, Issue 1, Pages 103-109Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2008.06.052
Keywords
SERS; enhancement factor; silver nanoparticles; ablation; photoreduction; adsorption on metals
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Funding
- Ministerio de Educacion y Ciencia [FIS2006-63065]
- Comunidad Autonoma de Madrid [S-0505/TIC/0191]
- Red Tematica del Patrimonio Historico y Cultural (C.S.I.C.)
- European Social Fund
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Different Ag nanoparticles were prepared by four different methods (chemical reduction with trisodium citrate, chemical reduction with hydroxylamine hydrochloride, laser ablation and laser in situ photoreduction) to compare their applicability in surface-enhanced Raman scattering (SERS), their stability and other interfacial characteristics such as the pH, Surface availability and the surface potential. This study was conducted by using the anthraquinone dye alizarin as a molecular probe since this molecule is able to be adsorbed onto the metal through three different forms, which relative proportions depend on the interfacial properties of the exposed metal surfaces. (C) 2008 Elsevier Inc. All rights reserved.
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