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Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process

Typically, polymeric composites containing nanoparticles are realized by incorporating pre-made nanoparticles into a polymer matrix by using blending solvent or by the reduction of metal salt dispersed in the polymeric matrix. Generally, the production of pre-made Au NPs occurs in liquids with two-s...

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Autores principales: Cutroneo, Mariapompea, Havranek, Vladimir, Mackova, Anna, Malinsky, Petr, Silipigni, Letteria, Slepicka, Petr, Fajstavr, Dominik, Torrisi, Lorenzo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623421/
https://www.ncbi.nlm.nih.gov/pubmed/34830035
http://dx.doi.org/10.3390/ijms222212155
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author Cutroneo, Mariapompea
Havranek, Vladimir
Mackova, Anna
Malinsky, Petr
Silipigni, Letteria
Slepicka, Petr
Fajstavr, Dominik
Torrisi, Lorenzo
author_facet Cutroneo, Mariapompea
Havranek, Vladimir
Mackova, Anna
Malinsky, Petr
Silipigni, Letteria
Slepicka, Petr
Fajstavr, Dominik
Torrisi, Lorenzo
author_sort Cutroneo, Mariapompea
collection PubMed
description Typically, polymeric composites containing nanoparticles are realized by incorporating pre-made nanoparticles into a polymer matrix by using blending solvent or by the reduction of metal salt dispersed in the polymeric matrix. Generally, the production of pre-made Au NPs occurs in liquids with two-step processes: producing the gold nanoparticles first and then adding them to the liquid polymer. A reproducible method to synthetize Au nanoparticles (NPs) into polydimethylsiloxane (PDMS) without any external reducing or stabilizing agent is a challenge. In this paper, a single-step method is proposed to synthetize nanoparticles (NPs) and at the same time to realize reproducible porous and bulk composites using laser ablation in liquid. With this single-step process, the gold nanoparticles are therefore produced directly in the liquid polymer. The optical properties of the suspensions of AuNPs in distilled water and in the curing agent have been analyzed by the UV-VIS spectroscopy, employed in the transmission mode, and compared with those of the pure curing agent. The electrical dc conductivity of the porous PDMS/Au NPs nanocomposites has been evaluated by the I–V characteristics. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis have monitored the composition and morphology of the so-obtained composites and the size of the fabricated Au nanoparticles. Atomic force microscopy (AFM) has been used to determine the roughness of the bulk PDMS and its Au NP composites.
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spelling pubmed-86234212021-11-27 Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process Cutroneo, Mariapompea Havranek, Vladimir Mackova, Anna Malinsky, Petr Silipigni, Letteria Slepicka, Petr Fajstavr, Dominik Torrisi, Lorenzo Int J Mol Sci Article Typically, polymeric composites containing nanoparticles are realized by incorporating pre-made nanoparticles into a polymer matrix by using blending solvent or by the reduction of metal salt dispersed in the polymeric matrix. Generally, the production of pre-made Au NPs occurs in liquids with two-step processes: producing the gold nanoparticles first and then adding them to the liquid polymer. A reproducible method to synthetize Au nanoparticles (NPs) into polydimethylsiloxane (PDMS) without any external reducing or stabilizing agent is a challenge. In this paper, a single-step method is proposed to synthetize nanoparticles (NPs) and at the same time to realize reproducible porous and bulk composites using laser ablation in liquid. With this single-step process, the gold nanoparticles are therefore produced directly in the liquid polymer. The optical properties of the suspensions of AuNPs in distilled water and in the curing agent have been analyzed by the UV-VIS spectroscopy, employed in the transmission mode, and compared with those of the pure curing agent. The electrical dc conductivity of the porous PDMS/Au NPs nanocomposites has been evaluated by the I–V characteristics. Scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis have monitored the composition and morphology of the so-obtained composites and the size of the fabricated Au nanoparticles. Atomic force microscopy (AFM) has been used to determine the roughness of the bulk PDMS and its Au NP composites. MDPI 2021-11-10 /pmc/articles/PMC8623421/ /pubmed/34830035 http://dx.doi.org/10.3390/ijms222212155 Text en © 2021 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
Cutroneo, Mariapompea
Havranek, Vladimir
Mackova, Anna
Malinsky, Petr
Silipigni, Letteria
Slepicka, Petr
Fajstavr, Dominik
Torrisi, Lorenzo
Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title_full Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title_fullStr Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title_full_unstemmed Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title_short Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
title_sort synthesis of porous polydimethylsiloxane gold nanoparticles composites by a single step laser ablation process
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623421/
https://www.ncbi.nlm.nih.gov/pubmed/34830035
http://dx.doi.org/10.3390/ijms222212155
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