Počet záznamů: 1
Nanocomposite of polystyrene foil grafted with metallaboranes for antimicrobial activity
- 1.
SYSNO ASEP 0486864 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Nanocomposite of polystyrene foil grafted with metallaboranes for antimicrobial activity Tvůrce(i) Benkocká, M. (CZ)
Kolářová, K. (CZ)
Matoušek, J. (CZ)
Semerádtová, A. (CZ)
Šícha, Václav (UACH-T) RID, ORCID, SAI
Kolská, Z. (CZ)Zdroj.dok. Applied Surface Science. - : Elsevier - ISSN 0169-4332
Roč. 441, MAY (2018), s. 120-129Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Antimicrobial activity ; Chemical grafting ; Metallaboranes ; Piranha solution ; Polystyrene ; Surface properties Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry CEP LM2015073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UACH-T - RVO:61388980 UT WOS 000427816400015 EID SCOPUS 85041419501 DOI 10.1016/j.apsusc.2018.01.235 Anotace The surface of polystyrene foil (PS) was chemically modified. Firstly, the surface was pre-treated with Piranha solution. The activated surface was grafted by selected amino-compounds (cysteamine, ethylenediamine or chitosan) and/or subsequently grafted with five members of inorganic metallaboranes. Selected surface properties were studied by using various methods in order to indicate significant changes before and after individual modification steps of polymer foil. Elemental composition of surface was conducted by using X-ray photoelectron spectroscopy, chemistry and polarity by infrared spectroscopy and by electrokinetic analysis, wettability by goniometry, surface morphology by atomic force microscopy. Antimicrobial tests were performed on individual samples in order to confirm antimicrobial impact. Our results show slight antibacterial activity of PS modified with SK5 for Escherichia coli in comparison with the rest of the tested borane. On the other hand molecules of all tested metallaboranes could easier pierce through bacterial cell of Staphylococcus epidermidis due to absence of outer membrane (phospholipid bilayer). Some borane grafted on PS surface embodies the strong activity for Staphylococcus epidermidis and also for Desmodesmus quadricauda growth inhibition. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2019
Počet záznamů: 1