RT Journal Article
T1 Preparation of Surface-Enhanced Raman Scattering Substrates Based on Immobilized Silver-Capped Nanoparticles
A1 Caro, C.
A1 Gamez, F.
A1 Zaderenko, A. P.
K1 Sers
K1 Spectroscopy
K1 Films
K1 Fabrication
K1 Clusters
K1 Nanostructure
K1 Temperature
K1 Electrodes
K1 Dependence
K1 Reduction
AB Novel results concerning surface-enhanced Raman scattering mediated by thiol-immobilized capped silver nanoparticles attached to a silicon Si(100) substrate are presented. The attachment of the nanoparticles is achieved by chemically modifying the surface of Si(100) in order to provide sulfhydryl groups covalently linked to the substrate and then covering these surfaces with bare and polymer-capped silver nanoparticles. The modified silicon substrate, the nanoparticles, and the sensors are characterized by means of infrared and UV-vis spectroscopies and electronic microscopies. The surface-enhanced Raman scattering intensity of the new films based on polymer-capped nanoparticles is compared with that obtained with silver bare nanoparticles using rhodamine 6G as a common chromophore. These results open a new route to the design of reversible and spot-to-spot reproducible surface-enhanced Raman scattering-based sensors supported by silver nanoparticles.
PB Hindawi ltd
SN 2314-4920
YR 2018
FD 2018-01-01
LK http://hdl.handle.net/10668/19070
UL http://hdl.handle.net/10668/19070
LA en
DS RISalud
RD Apr 6, 2025