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A scheme for detecting every single target molecule with surface-enhanced Raman spectroscopy.

hal.structure.identifierThe MacDiarmid Institute for Advanced Materials and Nanotechnology
dc.contributor.authorLE RU, Eric C
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorGRAND, Johan
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorSOW, Idrissa
hal.structure.identifierThe MacDiarmid Institute for Advanced Materials and Nanotechnology
dc.contributor.authorSOMERVILLE, Walter R. C.
hal.structure.identifierThe MacDiarmid Institute for Advanced Materials and Nanotechnology
dc.contributor.authorETCHEGOIN, Pablo G.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRÉGUER-DELAPIERRE, Mona
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorCHARRON, Gaëlle
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorFÉLIDJ, Nordin
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorLÉVI, Georges
hal.structure.identifierInterfaces, Traitements, Organisation et Dynamique des Systèmes [ITODYS (UMR_7086)]
dc.contributor.authorAUBARD, Jean
dc.date.issued2011
dc.identifier.issn1530-6984
dc.description.abstractEnSurface-enhanced Raman spectroscopy (SERS) is now a well-established technique for the detection, under appropriate conditions, of single molecules (SM) adsorbed on metallic nanostructures. However, because of the large variations of the SERS enhancement factor on the surface, only molecules located at the positions of highest enhancement, so-called hot-spots, can be detected at the single-molecule level. As a result, in all SM-SERS studies so far only a small fraction, typically less than 1%, of molecules are actually observed. This complicates the analysis of such experiments and means that trace detection via SERS can in principle still be vastly improved. Here we propose a simple scheme, based on selective adsorption of the target analyte at the SERS hot-spots only, that allows in principle detection of every single target molecule in solution. We moreover provide a general experimental methodology, based on the comparison between average and maximum (single molecule) SERS enhancement factors, to verify the efficiency of our approach. The concepts and tools introduced in this work can readily be applied to other SERS systems aiming for detection of every single target molecule.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enSurface-enhanced Raman spectroscopy
dc.subject.enSingle molecule detection
dc.subject.enPlasmonics
dc.subject.enSite-selective adsorption
dc.subject.enCTAB bilayer
dc.subject.enBianalyte SERS
dc.title.enA scheme for detecting every single target molecule with surface-enhanced Raman spectroscopy.
dc.typeArticle de revue
dc.identifier.doi10.1021/nl2030344
dc.subject.halChimie/Matériaux
bordeaux.journalNano Letters
bordeaux.page5013-5019
bordeaux.volume11
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-00649569
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00649569v1
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