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The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties
Nanostructures made of magnetic cores (from Fe(3)O(4)) with attached silver plasmonic nanostructures were covered with a very thin layer of silica. The (Fe(3)O(4)@Ag)@SiO(2) magnetic–plasmonic nanomaterial can be manipulated using a magnetic field. For example, one can easily form homogeneous layers...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9143147/ https://www.ncbi.nlm.nih.gov/pubmed/35630560 http://dx.doi.org/10.3390/molecules27103081 |
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author | Michałowska, Aleksandra Kudelski, Andrzej |
author_facet | Michałowska, Aleksandra Kudelski, Andrzej |
author_sort | Michałowska, Aleksandra |
collection | PubMed |
description | Nanostructures made of magnetic cores (from Fe(3)O(4)) with attached silver plasmonic nanostructures were covered with a very thin layer of silica. The (Fe(3)O(4)@Ag)@SiO(2) magnetic–plasmonic nanomaterial can be manipulated using a magnetic field. For example, one can easily form homogeneous layers from this nanomaterial using a very simple procedure: deposition of a layer of a sol of such a nanostructure and evaporation of the solvent after placing the sample in a strong magnetic field. Due to the rapid magnetic immobilization of the magnetic–plasmonic nanomaterial on the investigated surface, no coffee-ring effect occurs during the evaporation of the solvent. In this contribution, we report the first example of a magnetic, silver-based plasmonic nanomaterial for shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS). Nanoresonators based on silver plasmonic nanostructures locally enhance the intensity of the exciting electromagnetic radiation in a significantly broader frequency range than the previously used magnetic SHINERS nanoresonators with gold plasmonic nanostructures. Example applications where the resulting nanomaterial was used for the SHINERS investigation of a monolayer of mercaptobenzoic acid chemisorbed on platinum, and for a standard SERS determination of dopamine, are also presented. |
format | Online Article Text |
id | pubmed-9143147 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91431472022-05-29 The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties Michałowska, Aleksandra Kudelski, Andrzej Molecules Article Nanostructures made of magnetic cores (from Fe(3)O(4)) with attached silver plasmonic nanostructures were covered with a very thin layer of silica. The (Fe(3)O(4)@Ag)@SiO(2) magnetic–plasmonic nanomaterial can be manipulated using a magnetic field. For example, one can easily form homogeneous layers from this nanomaterial using a very simple procedure: deposition of a layer of a sol of such a nanostructure and evaporation of the solvent after placing the sample in a strong magnetic field. Due to the rapid magnetic immobilization of the magnetic–plasmonic nanomaterial on the investigated surface, no coffee-ring effect occurs during the evaporation of the solvent. In this contribution, we report the first example of a magnetic, silver-based plasmonic nanomaterial for shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS). Nanoresonators based on silver plasmonic nanostructures locally enhance the intensity of the exciting electromagnetic radiation in a significantly broader frequency range than the previously used magnetic SHINERS nanoresonators with gold plasmonic nanostructures. Example applications where the resulting nanomaterial was used for the SHINERS investigation of a monolayer of mercaptobenzoic acid chemisorbed on platinum, and for a standard SERS determination of dopamine, are also presented. MDPI 2022-05-11 /pmc/articles/PMC9143147/ /pubmed/35630560 http://dx.doi.org/10.3390/molecules27103081 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Michałowska, Aleksandra Kudelski, Andrzej The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title | The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title_full | The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title_fullStr | The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title_full_unstemmed | The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title_short | The First Silver-Based Plasmonic Nanomaterial for Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy with Magnetic Properties |
title_sort | first silver-based plasmonic nanomaterial for shell-isolated nanoparticle-enhanced raman spectroscopy with magnetic properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9143147/ https://www.ncbi.nlm.nih.gov/pubmed/35630560 http://dx.doi.org/10.3390/molecules27103081 |
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