Multi-functionalization of lithographically designed gold nanodisks by plasmon-mediated reduction of aryl diazonium salts

Tijunelyte, Inga; Kherbouche, Issam; Gam‐Derouich, Sarra; Nguyen, M.T.; Lidgi‐Guigui, Nathalie; Chapelle, Marc Lamy de la; Lamouri, Aazdine; Lévi, G.; Aubard, J.; Chevillot‐Biraud, Alexandre; Mangeney, Claire; Félidj, Nordin

doi:10.1039/c7nh00113d

Cited by 34 publications

(34 citation statements)

References 26 publications

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“…The results presented here are a proof of concept that the detection of emerging pollutants such as paracetamol is possible in a routine way. Other results have demonstrated that it was possible to take advantage of the polarization of the light to perform a regio-selective functionalization of the nanocylinders [40]. These complementary results pave the way to ultra-sensitive multiplexed SERS sensors.…”

Section: Discussionmentioning

confidence: 88%

Sensing Polymer/Paracetamol Interaction with an Independent Component Analysis-Based SERS-MIP Nanosensor

Decorbie¹,

Tijunelyte²,

Gam‐Derouich

et al. 2020

Plasmonics

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In this article, we propose a new strategy to build a sensor for easy handling and rapid analysis on-site. Our sensor is based on the combination of surface-enhanced Raman spectroscopy (SERS) and molecularly imprinted polymers (MIPs). SERS provides a strong sensitivity for the detection of trace molecules while MIPs offer a highly selective and specific recognition platform. The research presented here focuses on the detection of the interaction between a robust ultra-thin layer of MIPs and of paracetamol, the targeted molecule. This drug is an environmental emerging pollutant, i.e., a molecule whose presence and significance have not yet been elucidated, which gives rise to health and environmental concerns. The results are a combined analysis of the SERS spectra and a multivariate analysis. The former provides a clear demonstration of the evolution of the MIP-nanostructure interaction when the concentration of paracetamol increases. The statistical analysis produces the proof of the selectivity of the sensor

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Section: Discussionmentioning

confidence: 88%

Sensing Polymer/Paracetamol Interaction with an Independent Component Analysis-Based SERS-MIP Nanosensor

Decorbie¹,

Tijunelyte²,

Gam‐Derouich

et al. 2020

Plasmonics

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“…Such localized effect can also be used for local photoinduced photoreactivity such as plasmon‐mediated functionalization and polymerization of analytes. To date this has been demonstrated in the visible region, however, such an approach could potentially be applied to mid‐infrared resonances using highly tunable quantum cascade lasers.…”

Section: Resultsmentioning

confidence: 99%

“…Structures that support multiple polarization‐dependent resonances can be applied to a variety of applications. These include polarized plasmon‐mediated surface chemistry where a surface is functionalized with different analytes using different polarizations, or polarized optical filters with distinct polarization responses . An interesting, yet under explored aspect of anisotropic nanostructures is the differential absorbance, Δ A , that is associated with the dichroic (linear or circular) properties of the structure.…”

Section: Introductionmentioning

confidence: 99%

Exploiting Anisotropy of Plasmonic Nanostructures with Polarization Modulation Infrared Linear Dichroism Microscopy (µPM‐IRLD)

Wallace

Read

McRae

et al. 2018

Advanced Optical Materials

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Metallic nanostructures that exhibit plasmon resonances in the mid‐infrared range are of particular interest for a variety of optical processes where the infrared excitation and/or emission can be enhanced. This plasmon‐mediated enhancement can potentially be used toward highly sensitive detection of an analyte(s) by techniques such as surface‐enhanced infrared absorption (SEIRA). To maximize the SEIRA enhancement, it is necessary to prepare highly tuned plasmonic resonances over a defined spectral range that can span over several microns. Noteworthy, nanostructures with anisotropic shapes exhibit multiple resonances that can be exploited by controlling the polarization of the input light. This study demonstrates the role of polarization‐modulation infrared linear dichroism coupled to microscopy measurements (µPM‐IRLD) as a powerful means to explore the optical properties of anisotropic nanostructures. Quantitative µPM‐IRLD measurements are conducted on a series of dendritic fractals as model structures to explore the role of structural anisotropy on the resulting surface‐enhanced infrared absorption and sensing application. Once functionalized with an analyte, the µPM‐IRLD SEIRA results highlight that it is possible to selectively enhance further vibrational modes of analytes making use of the structural anisotropy of the metallic nanostructure.

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“…So called "hot electrons" can be produced on structured surfaces or nanoparticles by photochemical excitation of surface plasmons. These hot electrons are able to reduce diazonium salts and provide modified nanoparticles and nanodisks [11]. When nanodisks are irradiated by a polarized laser beam along one direction grafting by a diazonuium salt provides modified spots at the extremities of one diameter, by rotating the beam by 90° another diazonium salt can be grafted, therefore this makes possible a regioselective functionalization of the nanodisk.…”

Section: New Methods For Surface Modificationmentioning

confidence: 99%

Surface modification of materials: Electrografting of organic films

Pinson

Podvorica²

2020

Current Opinion in Electrochemistry

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Multi-functionalization of lithographically designed gold nanodisks by plasmon-mediated reduction of aryl diazonium salts

Abstract: Plasmon-mediated multi-functionalization of nanoparticles is presented, in order to achieve the grafting of various chemical groups in distinct nanoscale regions.

Cited by 34 publications

References 26 publications

Sensing Polymer/Paracetamol Interaction with an Independent Component Analysis-Based SERS-MIP Nanosensor

Sensing Polymer/Paracetamol Interaction with an Independent Component Analysis-Based SERS-MIP Nanosensor

Exploiting Anisotropy of Plasmonic Nanostructures with Polarization Modulation Infrared Linear Dichroism Microscopy (µPM‐IRLD)

Surface modification of materials: Electrografting of organic films

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