Plasmonic Nanomaterials: Advances in Sensing Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 2918

Special Issue Editors


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Guest Editor
Department of Physical and Inorganic Chemistry, Universitat Rovira i Virgili, Carrer de Marcel∙lí Domingo, 43007 Tarragona, Spain
Interests: plasmonics; nanoparticles; surface-enhanced Raman spectroscopy; optical sensing
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Guest Editor
Department of Physical Chemistry and EMaS, Universitat Rovira i Virgili, 43007 Tarragona, Spain
Interests: plasmonics; nanoparticles; self assembly; encoded particles; SERS
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
1. Instituto de Estructura de la Materia (IEM), Consejo Superior de Investigaciones Científicas (CSIC), Serrano 121, 28006 Madrid, Spain
2. Technology Innovation Institute, Masdar City, Abu Dhabi, United Arab Emirates
Interests: plasmonics and nanoantennas; quantum snd nonlocal plasmonics; topological nanophotonics; metamaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sensing devices use nanotechnology as an ultrasensitive and highly specific analytical tool that can exploit signal readouts in a variety of physical and chemical applications. For example, the SERS effect primarily relies on the excitation of localized surface plasmon resonances at the surface of nanostructured plasmonic materials. Thus, developments in the precise design and fabrication of plasmonic substrates with tailored morphologies, high and reproducible enhancing performances, and (when applicable) multifunctional features have been major driving forces in boosting the technological advances and applications of sensing research. Successfully translating the analytical potential of sensing applications into viable commercial devices is also dependent on the ability to produce excellent plasmonic substrates on a large scale and in a cost-effective fashion.

This Special Issue focuses on presenting and discussing the most recent technological advances in the design of plasmonic nanomaterials in order for them to be applied in diverse fields such as sensing, detection, environmental monitoring, and catalysis.

We kindly invite all experts in the field to submit their manuscripts to be considered for publication. Original research papers, both experimental and theoretical, as well as review articles, are welcome.

Dr. Luca Guerrini
Dr. Nicolás Carlos Pazos Pérez
Prof. Dr. Vincenzo Giannini
Guest Editors

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Keywords

  • plasmonics
  • surface-enhanced Raman spectroscopy
  • nanotechnology
  • nanoparticles
  • nanofabrication chemical sensing
  • diagnosis
  • environmental monitoring

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Published Papers (2 papers)

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Research

14 pages, 3526 KiB  
Article
Comparative SERS Activity of Homometallic and Bimetallic Core–Satellite Assemblies
by Gianfranco Terrones-Morey, Xiaofei Xiao, Vincenzo Giannini, Alex Fragoso, Luca Guerrini and Nicolas Pazos-Perez
Nanomaterials 2024, 14(18), 1506; https://doi.org/10.3390/nano14181506 - 16 Sep 2024
Viewed by 825
Abstract
The fabrication of core–satellite (CS) assemblies offers a versatile strategy for tailoring the optical properties of plasmonic nanomaterials. In addition to key factors like size, shape, and spatial arrangement of individual components, the combination of plasmonic units with different compositions (e.g., gold and [...] Read more.
The fabrication of core–satellite (CS) assemblies offers a versatile strategy for tailoring the optical properties of plasmonic nanomaterials. In addition to key factors like size, shape, and spatial arrangement of individual components, the combination of plasmonic units with different compositions (e.g., gold and silver) has been demonstrated to produce materials with enhanced properties and functionalities applicable across a range of fields. Notably, several CS assembly variants have emerged as promising substrates for surface-enhanced Raman spectroscopy (SERS). In this study, we address a gap in the knowledge by conducting a systematic cross-comparison of the optical and SERS properties of highly bright homo- and bimetallic CS assemblies. We evaluated the SERS efficiencies of these different superstructures across various excitation wavelengths and supported our findings with numerical simulations. The insights gained from this study offer a valuable foundation for researchers seeking to select and optimize the most suitable CS assemblies for their given SERS application. Full article
(This article belongs to the Special Issue Plasmonic Nanomaterials: Advances in Sensing Applications)
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14 pages, 5344 KiB  
Article
Rapid Fabrication of Fe and Pd Thin Films as SERS-Active Substrates via Dynamic Hydrogen Bubble Template Method
by Deepti Raj, Federico Scaglione and Paola Rizzi
Nanomaterials 2023, 13(1), 135; https://doi.org/10.3390/nano13010135 - 27 Dec 2022
Cited by 2 | Viewed by 1802
Abstract
Fe and Pd thin film samples have been fabricated in a rapid fashion utilizing the versatile technique of dynamic hydrogen bubble template (DHBT) method via potentiostatic electrodeposition over a copper substrate. The morphology of the samples is dendritic, with the composition being directly [...] Read more.
Fe and Pd thin film samples have been fabricated in a rapid fashion utilizing the versatile technique of dynamic hydrogen bubble template (DHBT) method via potentiostatic electrodeposition over a copper substrate. The morphology of the samples is dendritic, with the composition being directly proportional to the deposition time. All the samples have been tested as SERS substrates for the detection of Rhodamine 6G (R6G) dye. The samples perform very well, with the best performance shown by the Pd samples. The lowest detectable R6G concentration was found to be 10−6 M (479 μgL−1) by one of the Pd samples with the deposition time of 180 s. The highest enhancement of signals noticed in this sample can be attributed to its morphology, which is more nanostructured compared to other samples, which is extremely conducive to the phenomenon of localized surface plasmon resonance (LSPR). Overall, these samples are cheaper, easy to prepare with a rapid fabrication method, and show appreciable SERS performance. Full article
(This article belongs to the Special Issue Plasmonic Nanomaterials: Advances in Sensing Applications)
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