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:	Mariapompea Cutroneo, Vladimir Havranek, Anna Mackova, Petr Malinsky, Letteria Silipigni, Petr Slepicka, Dominik Fajstavr, Lorenzo Torrisi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laser ablation in medium nanoparticles polydimethylsiloxane porous composite curing time scanning electron microscopy Biology (General) QH301-705.5 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/e59ba16cb3654db78497603a447ae6ad
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spelling	oai:doaj.org-article:e59ba16cb3654db78497603a447ae6ad2021-11-25T17:53:51ZSynthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process10.3390/ijms2222121551422-00671661-6596https://doaj.org/article/e59ba16cb3654db78497603a447ae6ad2021-11-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/22/12155https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067Typically, 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.Mariapompea CutroneoVladimir HavranekAnna MackovaPetr MalinskyLetteria SilipigniPetr SlepickaDominik FajstavrLorenzo TorrisiMDPI AGarticlelaser ablation in mediumnanoparticlespolydimethylsiloxaneporous compositecuring timescanning electron microscopyBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 12155, p 12155 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser ablation in medium nanoparticles polydimethylsiloxane porous composite curing time scanning electron microscopy Biology (General) QH301-705.5 Chemistry QD1-999
spellingShingle	laser ablation in medium nanoparticles polydimethylsiloxane porous composite curing time scanning electron microscopy Biology (General) QH301-705.5 Chemistry QD1-999 Mariapompea Cutroneo Vladimir Havranek Anna Mackova Petr Malinsky Letteria Silipigni Petr Slepicka Dominik Fajstavr Lorenzo Torrisi Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process
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.
format	article
author	Mariapompea Cutroneo Vladimir Havranek Anna Mackova Petr Malinsky Letteria Silipigni Petr Slepicka Dominik Fajstavr Lorenzo Torrisi
author_facet	Mariapompea Cutroneo Vladimir Havranek Anna Mackova Petr Malinsky Letteria Silipigni Petr Slepicka Dominik Fajstavr Lorenzo Torrisi
author_sort	Mariapompea Cutroneo
title	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_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_sort	synthesis of porous polydimethylsiloxane gold nanoparticles composites by a single step laser ablation process
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e59ba16cb3654db78497603a447ae6ad
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Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation Process

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