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KrF Laser and Plasma Exposure of PDMS–Carbon Composite and Its Antibacterial Properties

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924526" target="_blank" >RIV/60461373:22310/22:43924526 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/60461373:22320/22:43924526 RIV/60461373:22330/22:43924526

  • Výsledek na webu

    <a href="https://doi.org/10.3390/ma15030839" target="_blank" >https://doi.org/10.3390/ma15030839</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/ma15030839" target="_blank" >10.3390/ma15030839</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    KrF Laser and Plasma Exposure of PDMS–Carbon Composite and Its Antibacterial Properties

  • Popis výsledku v původním jazyce

    A polydimethylsiloxane (PDMS) composite with multi-walled carbon nanotubes was successfully prepared. Composite foils were treated with both plasma and excimer laser, and changes in their physicochemical properties were determined in detail. Mainly changes in surface chemistry, wettability, and morphology were determined. The plasma treatment of PDMS complemented with subsequent heating led to the formation of a unique wrinkle-like pattern. The impact of different laser treatment conditions on the composite surface was determined. The morphology was determined by AFM and LCM techniques, while chemical changes and chemical surface mapping were studied with the EDS/EDX method. Selected activated polymer composites were used for the evaluation of antibacterial activity using Gram-positive (Staphylococcus epidermidis) and Gram-negative (Escherichia coli) bacteria. The antibacterial effect was achieved against S. epidermidis on pristine PDMS treated with 500 mJ of laser energy and PDMS-C nanocomposite treated with a lower laser fluence of 250 mJ. Silver deposition of PDMS foil increases significantly its antibacterial properties against E. coli, which is further enhanced by the carbon predeposition or high-energy laser treatment. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

  • Název v anglickém jazyce

    KrF Laser and Plasma Exposure of PDMS–Carbon Composite and Its Antibacterial Properties

  • Popis výsledku anglicky

    A polydimethylsiloxane (PDMS) composite with multi-walled carbon nanotubes was successfully prepared. Composite foils were treated with both plasma and excimer laser, and changes in their physicochemical properties were determined in detail. Mainly changes in surface chemistry, wettability, and morphology were determined. The plasma treatment of PDMS complemented with subsequent heating led to the formation of a unique wrinkle-like pattern. The impact of different laser treatment conditions on the composite surface was determined. The morphology was determined by AFM and LCM techniques, while chemical changes and chemical surface mapping were studied with the EDS/EDX method. Selected activated polymer composites were used for the evaluation of antibacterial activity using Gram-positive (Staphylococcus epidermidis) and Gram-negative (Escherichia coli) bacteria. The antibacterial effect was achieved against S. epidermidis on pristine PDMS treated with 500 mJ of laser energy and PDMS-C nanocomposite treated with a lower laser fluence of 250 mJ. Silver deposition of PDMS foil increases significantly its antibacterial properties against E. coli, which is further enhanced by the carbon predeposition or high-energy laser treatment. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    20501 - Materials engineering

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/GA20-02120S" target="_blank" >GA20-02120S: Q-uhlík, příprava unikátních uhlíkových nanostruktur</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2022

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Materials

  • ISSN

    1996-1944

  • e-ISSN

  • Svazek periodika

    15

  • Číslo periodika v rámci svazku

    3

  • Stát vydavatele periodika

    CH - Švýcarská konfederace

  • Počet stran výsledku

    17

  • Strana od-do

    "839/1"-17

  • Kód UT WoS článku

    000756034700001

  • EID výsledku v databázi Scopus

    2-s2.0-85123250261