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Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer

Here, we aimed at the preparation of an antibacterial surface on a flexible polydimethylsiloxane substrate. The polydimethylsiloxane surface was sputtered with silver, deposited with carbon, heat treated and exposed to excimer laser, and the combinations of these steps were studied. Our main aim was...

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Autores principales: Hurtuková, Klaudia, Vašinová, Tereza, Kasálková, Nikola Slepičková, Fajstavr, Dominik, Rimpelová, Silvie, Pavlíčková, Vladimíra Svobodová, Švorčík, Václav, Slepička, Petr
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370165/
https://www.ncbi.nlm.nih.gov/pubmed/35957089
http://dx.doi.org/10.3390/nano12152658
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author Hurtuková, Klaudia
Vašinová, Tereza
Kasálková, Nikola Slepičková
Fajstavr, Dominik
Rimpelová, Silvie
Pavlíčková, Vladimíra Svobodová
Švorčík, Václav
Slepička, Petr
author_facet Hurtuková, Klaudia
Vašinová, Tereza
Kasálková, Nikola Slepičková
Fajstavr, Dominik
Rimpelová, Silvie
Pavlíčková, Vladimíra Svobodová
Švorčík, Václav
Slepička, Petr
author_sort Hurtuková, Klaudia
collection PubMed
description Here, we aimed at the preparation of an antibacterial surface on a flexible polydimethylsiloxane substrate. The polydimethylsiloxane surface was sputtered with silver, deposited with carbon, heat treated and exposed to excimer laser, and the combinations of these steps were studied. Our main aim was to find the combination of techniques applicable both against Gram-positive and Gram-negative bacteria. The surface morphology of the structures was determined by atomic force microscopy and scanning electron microscopy. Changes in surface chemistry were conducted by application of X-ray photoelectron spectroscopy and energy dispersive spectroscopy. The changes in surface wettability were characterized by surface free energy determination. The heat treatment was also applied to selected samples to study the influence of the process on layer stability and formation of PDMS-Ag or PDMS-C-Ag composite layer. Plasmon resonance effect was determined for as-sputtered and heat-treated Ag on polydimethylsiloxane. The heating of such structures may induce formation of a pattern with a surface plasmon resonance effect, which may also significantly affect the antibacterial activity. We have implemented sputtering of the carbon base layer in combination with excimer laser exposure of PDMS/C/Ag to modify its properties. We have confirmed that deposition of primary carbon layer on PDMS, followed by sputtering of silver combined with subsequent heat treatment and activation of such surface with excimer laser, led to the formation of a surface with strong antibacterial properties against two bacterial strains of S. epidermidis and E. coli.
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spelling pubmed-93701652022-08-12 Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer Hurtuková, Klaudia Vašinová, Tereza Kasálková, Nikola Slepičková Fajstavr, Dominik Rimpelová, Silvie Pavlíčková, Vladimíra Svobodová Švorčík, Václav Slepička, Petr Nanomaterials (Basel) Article Here, we aimed at the preparation of an antibacterial surface on a flexible polydimethylsiloxane substrate. The polydimethylsiloxane surface was sputtered with silver, deposited with carbon, heat treated and exposed to excimer laser, and the combinations of these steps were studied. Our main aim was to find the combination of techniques applicable both against Gram-positive and Gram-negative bacteria. The surface morphology of the structures was determined by atomic force microscopy and scanning electron microscopy. Changes in surface chemistry were conducted by application of X-ray photoelectron spectroscopy and energy dispersive spectroscopy. The changes in surface wettability were characterized by surface free energy determination. The heat treatment was also applied to selected samples to study the influence of the process on layer stability and formation of PDMS-Ag or PDMS-C-Ag composite layer. Plasmon resonance effect was determined for as-sputtered and heat-treated Ag on polydimethylsiloxane. The heating of such structures may induce formation of a pattern with a surface plasmon resonance effect, which may also significantly affect the antibacterial activity. We have implemented sputtering of the carbon base layer in combination with excimer laser exposure of PDMS/C/Ag to modify its properties. We have confirmed that deposition of primary carbon layer on PDMS, followed by sputtering of silver combined with subsequent heat treatment and activation of such surface with excimer laser, led to the formation of a surface with strong antibacterial properties against two bacterial strains of S. epidermidis and E. coli. MDPI 2022-08-03 /pmc/articles/PMC9370165/ /pubmed/35957089 http://dx.doi.org/10.3390/nano12152658 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
Hurtuková, Klaudia
Vašinová, Tereza
Kasálková, Nikola Slepičková
Fajstavr, Dominik
Rimpelová, Silvie
Pavlíčková, Vladimíra Svobodová
Švorčík, Václav
Slepička, Petr
Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title_full Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title_fullStr Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title_full_unstemmed Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title_short Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer
title_sort antibacterial properties of silver nanoclusters with carbon support on flexible polymer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370165/
https://www.ncbi.nlm.nih.gov/pubmed/35957089
http://dx.doi.org/10.3390/nano12152658
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