Effect of periodicity on the performance of surface plasmon resonance sensors based on subwavelength nanohole arrays

Monteiro, Johny P.; Carneiro, Leandro B.; Rahman, Mohammad Mahbubur; Brolo, Alexandre G.; Santos, Jacqueline Ferreira Leite; Ferreira, Josiel; Girotto, Emerson M.

doi:10.1016/j.snb.2012.12.090

Cited by 49 publications

(41 citation statements)

References 34 publications

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“…The sensitivity obtained was ca. 305 nm RIU-1 (RIU=refractive index units) and is comparable to results reported in the literature for plasmonic devices of the same nature [5,6]. It was also observed that there was a good linear fit since the linear fit coefficient (R 2 ) value was near unity (R 2 =0.9976).…”

Section: Resultssupporting

confidence: 85%

“…A SPR affinity sensor is characterized by a recognition element (immobilized on metal) that can recognize and interact with a specific analyte of a sample that is in contact with the metallic surface of transducer; this, in turn, converts the event binding in a measurable optical signal [3]. These sensors usually evaluate the band wavelength shift of the transmission spectrum in response to the molecular recognition of the analyte [4][5][6]. However, an investigation of changes in transmitted light intensity can also be employed [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Microfluidic Plasmonic Biosensor for Breast Cancer Antigen Detection

et al. 2015

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Biosensors based on surface plasmon resonance (SPR), operating with the Kretschmann conventional arrangement, have been employed for biomolecular detection of tumor markers. However, the traditional SPR configuration presents some experimental inconveniences that are overcome by using plasmonic substrates based on nanohole arrays manufactured in metallic films. This SPR configuration exhibits the extraordinary optical transmission (EOT) phenomenon, which is explored in the monitoring of binding events that occur on the metal surface. In this work, we proposed a plasmon biosensor based on nanohole arrays built on gold film operating in collinear transmission mode by using spectral investigation for signal transduction. The SPR substrate was coupled to a microfluidic system and showed good sensitivity and linearity. A concentration of 30 ng mL −1 of human epidermal receptor protein-2 (HER2) antigen (associated with breast cancer) was detected using the integrated device; this showed its great potential to be used in tumor diagnosis.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Microfluidic Plasmonic Biosensor for Breast Cancer Antigen Detection

et al. 2015

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“…These Fano sensors have considerable applications in the detections of the concentration of the bulk gas, liquid, and macromolecules layers. In recent years, the Fano sensors based on the SPP modes mainly focused on the periodic metallic array structures because of the easy fabrications and convenient experimental detections . In the large‐area uniform gold nanoslit arrays ( Figure a), the sharp Fano resonance was achieved, as shown in Figure b .…”

Section: Plasmonic Sensors Based On Fano Resonancesmentioning

confidence: 99%

Plasmonic Sensing and Modulation Based on Fano Resonances

Chen

Gan

Wang

et al. 2018

Advanced Optical Materials

109

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The rapid developments in nanotechnology and plasmonics allow the manipulation of light at nanometer scales, such as light propagation and resonances. Differing from the symmetric Lorentzian‐like profiles in the conventional resonances, Fano resonances, which originate from the interference of different resonant modes, exhibit obviously asymmetric spectral profiles. Based on lineshape engineering, the Fano resonances with sharp asymmetric profiles exhibit a small linewidth and a high spectral contrast by exploiting different mechanisms and designing various metallic nanostructures. Both of the above properties in the sharp Fano resonances have significant applications in nanoscale plasmonic sensors and modulators. This review summarizes the underlying mechanism of the Fano resonances in various metallic nanostructures. Then, practical applications of the Fano resonances in nanoscale plasmonic sensing and modulation are reviewed. At last, the development and challenges of plasmonic sensing and modulation based on Fano resonances are discussed.

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“…Neste intuito, tem se explorado o fenômeno LSPR através da fabricação de diferentes nanoestruturas metálicas. 54,[55][56][57][58][59][60] A miniaturização dos biossensores LSPR é possível por possibilitar que os substratos plasmônicos sejam integrados com sistemas microfluídicos e sistemas ópticos simples. 61 Neste sistema integrado, a superfície plasmônica pode ser modificada possibilitando a presença de vários pontos de detecção seletiva, além de permitir a construção de curvas de calibração in situ.…”

Section: Aplicação De Nanopartículas Plasmônicas Em Sensores Biológicosunclassified

Ressonância de plasmon de superfície localizado e aplicação em biossensores e células solares

Santos¹,

Santos²,

Thesing³

et al. 2016

Quim. Nova

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LOCALIZED SURFACE PLASMON RESSONANCE APPLIED TO BIOSENSORS AND SOLAR CELLS. Within the last decades, the research on nanoparticles presenting localized surface plasmon resonance has increased constantly. In these materials, the interaction between electrons and incident light results in charge separation, enhancement of the electromagnetic field on the nanoparticles surface and in unique optical properties. Although many metals such as gold, silver, copper and aluminum present localized surface plasmon resonance within the visible range, gold and silver are the most commonly studied metals, due to the chemical inertia of gold and intense plasmon resonance from silver. In this review, we provide a description of the origin of localized surface plasmon resonance through the works developed by Mie, Maxwell and Maxwell-Garnett and a description of many examples of application of plasmonic nanoparticles on biosensors and solar cells, detailing the contribution of these plasmonic nanoparticles on the performance of these devices.Keywords: LSPR; Localized Surface Plasmon Resonance; biosensor; solar cell. INTRODUÇÃONos últimos 20 anos o interesse por nanopartículas metálicas (NPs-M) tem aumentado constantemente devido a sua ampla variedade de aplicações.1-8 Vários grupos de pesquisa têm estudado desde nanopartículas isoladas de cerca de 1 nm até nanopartículas de centenas de nanômetros, assim como seus aglomerados, buscando entender seu comportamento óptico e catalítico. Adicionalmente, a literatura descreve a constante busca por metodologias de síntese cada vez mais simples, de baixo custo e com alta reprodutibilidade. O comportamento óptico de nanopartículas metálicas tem fascinado a humanidade há vários séculos através de obras de arte, mesmo antes que a palavra nanotecnologia fosse utilizada.9 Um dos exemplos mais conhecidos é a Taça de Lycurgus (século 4 d.C), que tem em sua composição nanopartículas de ouro (NPAu).10 No entanto, foi somente em 1857 que as NPs-M receberam maior atenção devido aos estudos de Michael Faraday sobre o efeito da interação da luz em uma solução coloidal de NPAu obtida através da redução do cloreto de ouro pelo fósforo.11,12 Deste então, o interesse nestas NPs tem aumentado e novas metodologias de síntese e caracterização têm sido desenvolvidas, possibilitando grande controle de tamanho e formato.13-15 A pesquisa nesta área foi enriquecida pela compreensão do efeito da ressonância de plasmon de superfície localizado (LSPR), que explica o comportamento óptico destes materiais. Mie foi o primeiro a elucidar a origem das cores nestas estruturas e sua teoria foi posteriormente complementada com os modelos de Maxwell-Garnett que explicavam a interação de NPs-M com o meio. Estes estudos proporcionaram uma ampla visão quanto as possíveis aplicações das NPs-M, sendo atualmente empregada no desenvolvimento de novos materiais como células solares, biossensores e catalisadores. Nesta revisão, serão abordados os embasamentos teóricos envolvidos no efeito LSPR de NPs-M, destacando a aplicação destas n...

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Effect of periodicity on the performance of surface plasmon resonance sensors based on subwavelength nanohole arrays

Cited by 49 publications

References 34 publications

Microfluidic Plasmonic Biosensor for Breast Cancer Antigen Detection

Microfluidic Plasmonic Biosensor for Breast Cancer Antigen Detection

Plasmonic Sensing and Modulation Based on Fano Resonances

Ressonância de plasmon de superfície localizado e aplicação em biossensores e células solares

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