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Direct Synthesis of Gold Nanoparticles in Polymer Matrix
We report an original method for directly fabricating gold nanoparticles (Au NPs) in a polymer matrix using a thermal treatment technique and theoretically and experimentally investigate their plasmonic properties. The polymeric-metallic nanocomposite samples were first prepared by simply mixing SU-...
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/PMC9824390/ https://www.ncbi.nlm.nih.gov/pubmed/36616365 http://dx.doi.org/10.3390/polym15010016 |
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author | Pham, Quang Truong Ngo, Gia Long Nguyen, Xuan An Nguyen, Chi Thanh Ledoux-Rak, Isabelle Lai, Ngoc Diep |
author_facet | Pham, Quang Truong Ngo, Gia Long Nguyen, Xuan An Nguyen, Chi Thanh Ledoux-Rak, Isabelle Lai, Ngoc Diep |
author_sort | Pham, Quang Truong |
collection | PubMed |
description | We report an original method for directly fabricating gold nanoparticles (Au NPs) in a polymer matrix using a thermal treatment technique and theoretically and experimentally investigate their plasmonic properties. The polymeric-metallic nanocomposite samples were first prepared by simply mixing SU-8 resist and Au salt with different concentrations. The Au NPs growth was triggered inside the polymer through a thermal process on a hot plate and in air environment. The Au NPs creation was confirmed by the color of the nanocomposite thin films and by absorption spectra measurements. The Au NPs sizes and distributions were confirmed by transmission electron microscope measurements. It was found that the concentrations of Au salt and the annealing temperatures and durations are all crucial for tuning the Au NPs sizes and distributions, and, thus, their optical properties. We also propose a simulation model for calculations of Au NPs plasmonic properties inside a polymer medium. We realized that Au NPs having large sizes (50 to 100 nm) play an important role in absorption spectra measurements, as compared to the contribution of small NPs (<20 nm), even if the relative amount of big Au NPs is small. This simple, low-cost, and highly reproducible technique allows us to obtain plasmonic NPs within polymer thin films on a large scale, which can be potentially applied to many fields. |
format | Online Article Text |
id | pubmed-9824390 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98243902023-01-08 Direct Synthesis of Gold Nanoparticles in Polymer Matrix Pham, Quang Truong Ngo, Gia Long Nguyen, Xuan An Nguyen, Chi Thanh Ledoux-Rak, Isabelle Lai, Ngoc Diep Polymers (Basel) Article We report an original method for directly fabricating gold nanoparticles (Au NPs) in a polymer matrix using a thermal treatment technique and theoretically and experimentally investigate their plasmonic properties. The polymeric-metallic nanocomposite samples were first prepared by simply mixing SU-8 resist and Au salt with different concentrations. The Au NPs growth was triggered inside the polymer through a thermal process on a hot plate and in air environment. The Au NPs creation was confirmed by the color of the nanocomposite thin films and by absorption spectra measurements. The Au NPs sizes and distributions were confirmed by transmission electron microscope measurements. It was found that the concentrations of Au salt and the annealing temperatures and durations are all crucial for tuning the Au NPs sizes and distributions, and, thus, their optical properties. We also propose a simulation model for calculations of Au NPs plasmonic properties inside a polymer medium. We realized that Au NPs having large sizes (50 to 100 nm) play an important role in absorption spectra measurements, as compared to the contribution of small NPs (<20 nm), even if the relative amount of big Au NPs is small. This simple, low-cost, and highly reproducible technique allows us to obtain plasmonic NPs within polymer thin films on a large scale, which can be potentially applied to many fields. MDPI 2022-12-20 /pmc/articles/PMC9824390/ /pubmed/36616365 http://dx.doi.org/10.3390/polym15010016 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 Pham, Quang Truong Ngo, Gia Long Nguyen, Xuan An Nguyen, Chi Thanh Ledoux-Rak, Isabelle Lai, Ngoc Diep Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title | Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title_full | Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title_fullStr | Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title_full_unstemmed | Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title_short | Direct Synthesis of Gold Nanoparticles in Polymer Matrix |
title_sort | direct synthesis of gold nanoparticles in polymer matrix |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824390/ https://www.ncbi.nlm.nih.gov/pubmed/36616365 http://dx.doi.org/10.3390/polym15010016 |
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