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dc.contributor.authorGuerrini, Luca-
dc.contributor.authorGarcía-Ramos, José Vicente-
dc.contributor.authorDomingo, Concepción-
dc.contributor.authorSánchez-Cortés, Santiago-
dc.identifier.citationJ. Phys. Chem. C 112(20): 7527-7530 (2008)en_US
dc.description5 pages, 4 figures.-- Printed version published on May 22, 2008.en_US
dc.description.abstractThe application of viologen dications in the creation of highly sensitive and selective hot spots between silver nanoparticles is reported in the present work. A method to follow the existence of such hot spots in macroscopic samples is proposed based on the plasmon absorption of these nanoparticles in suspension. The method was applied in the case of detection of the polycyclic aromatic hydrocarbon pyrene, confirming the great ability of viologens, in the increasing of the sensitivity and selectivity of the SERS technique, as both hot spot inducers and host molecules.en_US
dc.description.sponsorshipWe acknowledge project FIS2007-63065 from Dirección General de Investigación, Ministerio de Educación y Ciencia and Comunidad Autónoma de Madrid Project Number S-0505/TIC/0191 MICROSERES for financial support. L.G. acknowledges an I3P fellowship from CSIC.en_US
dc.format.extent377591 bytes-
dc.publisherAmerican Chemical Societyen_US
dc.subjectSilver nanoparticlesen_US
dc.subjectHot spotsen_US
dc.subjectPlasmon absorptionen_US
dc.subjectPolycyclic aromatic hydrocarbon pyreneen_US
dc.subjectSurface-enhanced Raman scattering (SERS)en_US
dc.titleBuilding Highly Selective Hot Spots in Ag Nanoparticles Using Bifunctional Viologens: Application to the SERS Detection of PAHsen_US
dc.description.peerreviewedPeer revieweden_US
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