Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing

This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in ACS Nano, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/articlesonrequest/AOR-jfCkKFwsJwtEYkHTFzG7

Detalles Bibliográficos
Autores: Otte, Marinus A., Sepúlveda, Borja, Ni, Weihai, Pérez-Juste, Jorge, Liz-Marzán, Luis Manuel, Lechuga, Laura M.
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/29049
Acceso en línea:http://hdl.handle.net/10261/29049
Access Level:acceso abierto
Palabra clave:Surface plasmon resonance
Localized surface plasmon resonance
Sensing
Biosensing
Sensitivity
Figure of merit
Nanorods
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spelling Identification of the optimal spectral region for plasmonic and nanoplasmonic sensingOtte, Marinus A.Sepúlveda, BorjaNi, WeihaiPérez-Juste, JorgeLiz-Marzán, Luis ManuelLechuga, Laura M.Surface plasmon resonanceLocalized surface plasmon resonanceSensingBiosensingSensitivityFigure of meritNanorodsThis document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in ACS Nano, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/articlesonrequest/AOR-jfCkKFwsJwtEYkHTFzG7We present a theoretical and experimental study involving the sensing characteristics of wavelength interrogated plasmonic sensors based on Surface Plasmon Polaritons (SPP) in planar gold films and on Localized Surface Plasmon Resonances (LSPR) of single gold nanorods. The tunability of both sensing platforms allowed us to analyze their bulk and surface sensing characteristics as a function of the plasmon resonance position. We demonstrate that a general figure of merit (FOM), which is equivalent in wavelength and energy scales, can be employed to mutually compare both sensing schemes. Most interestingly, this FOM has revealed a spectral region for which the surface sensitivity performance of both sensor types is optimized, which we attribute to the intrinsic dielectric properties of plasmonic materials. Additionally, in good agreement with theoretical predictions, we experimentally demonstrate that, although the SPP sensor offers a much better bulk sensitivity, the LSPR sensor shows an approximately 15% better performance for surface sensitivity measurements when its FOM is optimized. However, optimization of the substrate refractive index and the accessibility of the relevant molecules to the nanoparticles can lead to a total 3-fold improvement of the FOM in LSPR sensors.This research was carried out with the support of the Commission for Universities and Investigation belonging to the Department of Innovation, Universities and Companies of the Generalitat de Catalunya, and the Social European Fund. Financial support of the M. Botn Foundation and the Nanomag CIBER-BBN Project is also greatly acknowledged. L.M.L.-M. acknowledges financial support from Ministerio de Ciencia e Innovacin (MAT2007-62696 and PCI2005-A7-0075).Peer reviewedAmerican Chemical SocietyGeneralitat de CatalunyaEuropean CommissionFundación BotínMinisterio de Ciencia e Innovación (España)201020102009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/29049reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1021/nn901024einfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/290492026-05-22T06:33:51Z
dc.title.none.fl_str_mv Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
title Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
spellingShingle Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
Otte, Marinus A.
Surface plasmon resonance
Localized surface plasmon resonance
Sensing
Biosensing
Sensitivity
Figure of merit
Nanorods
title_short Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
title_full Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
title_fullStr Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
title_full_unstemmed Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
title_sort Identification of the optimal spectral region for plasmonic and nanoplasmonic sensing
dc.creator.none.fl_str_mv Otte, Marinus A.
Sepúlveda, Borja
Ni, Weihai
Pérez-Juste, Jorge
Liz-Marzán, Luis Manuel
Lechuga, Laura M.
author Otte, Marinus A.
author_facet Otte, Marinus A.
Sepúlveda, Borja
Ni, Weihai
Pérez-Juste, Jorge
Liz-Marzán, Luis Manuel
Lechuga, Laura M.
author_role author
author2 Sepúlveda, Borja
Ni, Weihai
Pérez-Juste, Jorge
Liz-Marzán, Luis Manuel
Lechuga, Laura M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Generalitat de Catalunya
European Commission
Fundación Botín
Ministerio de Ciencia e Innovación (España)
dc.subject.none.fl_str_mv Surface plasmon resonance
Localized surface plasmon resonance
Sensing
Biosensing
Sensitivity
Figure of merit
Nanorods
topic Surface plasmon resonance
Localized surface plasmon resonance
Sensing
Biosensing
Sensitivity
Figure of merit
Nanorods
description This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in ACS Nano, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/articlesonrequest/AOR-jfCkKFwsJwtEYkHTFzG7
publishDate 2009
dc.date.none.fl_str_mv 2009
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/29049
url http://hdl.handle.net/10261/29049
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1021/nn901024e
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403205906989056
score 15,811543

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