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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MDPI AG
2021-11-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/22/22/12155 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:27:04Z |
| format | Article |
| id | doaj.art-e59ba16cb3654db78497603a447ae6ad |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T05:27:04Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-e59ba16cb3654db78497603a447ae6ad2023-11-22T23:37:53ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-11-0122221215510.3390/ijms222212155Synthesis of Porous Polydimethylsiloxane Gold Nanoparticles Composites by a Single Step Laser Ablation ProcessMariapompea Cutroneo0Vladimir Havranek1Anna Mackova2Petr Malinsky3Letteria Silipigni4Petr Slepicka5Dominik Fajstavr6Lorenzo Torrisi7Nuclear Physics Institute, AS CR, 250 68 Rez, Czech RepublicNuclear Physics Institute, AS CR, 250 68 Rez, Czech RepublicNuclear Physics Institute, AS CR, 250 68 Rez, Czech RepublicNuclear Physics Institute, AS CR, 250 68 Rez, Czech RepublicDepartment of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, ItalyDepartment of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech RepublicDepartment of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech RepublicDepartment of Physics (MIFT), Messina University, V.le F.S. D’Alcontres 31, 98166 Messina, ItalyTypically, 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.https://www.mdpi.com/1422-0067/22/22/12155laser ablation in mediumnanoparticlespolydimethylsiloxaneporous compositecuring timescanning electron microscopy |
| spellingShingle | 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 International Journal of Molecular Sciences laser ablation in medium nanoparticles polydimethylsiloxane porous composite curing time scanning electron microscopy |
| 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 | laser ablation in medium nanoparticles polydimethylsiloxane porous composite curing time scanning electron microscopy |
| url | https://www.mdpi.com/1422-0067/22/22/12155 |
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