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Antimicrobial and photophysical properties of chemically grafted ultra-high-molecular-weight polyethylene
M. Benkocká, S. Lupínková, T. Knapová, K. Kolářová, J. Matoušek, P. Slepička, V. Švorčík, Z. Kolská,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články
Grantová podpora
NV15-33018A
MZ0
CEP - Centrální evidence projektů
- MeSH
- antiinfekční látky * chemie farmakologie MeSH
- borany chemie MeSH
- nanokompozity chemie MeSH
- polyethyleny * chemie farmakologie MeSH
- smáčivost MeSH
- Staphylococcus epidermidis růst a vývoj MeSH
- Publikační typ
- časopisecké články MeSH
Surface of ultra-high-molecular-weight polyethylene (UHMWPE) was modified by chemical methods. Surface was firstly activated by Piranha solution and then grafted with selected amino-compounds (cysteamine, ethylenediamine or chitosan). The next step was grafting of some borane cluster compounds, highly fluorescent borane hydride cluster anti-B18H22 or its thiolated derivative 4,4'-(HS)2-anti-B18H20. Polymer foils were studied using various methods to characterize surface chemistry (X-ray photoelectron spectroscopy), roughness and morphology (atomic force microscopy, scanning electron microscopy), chemistry and polarity (electrokinetic analysis), wettability (goniometry) and photophysical properties (UV-Vis spectroscopy) before and after modification steps. Subsequently some kinds of antimicrobial tests were performed. Immobilization of anti-B18H22 in small quantities onto UHMWPE surface leads to materials with a luminescence. Samples grafted with borane clusters showed significant inhibition of growth for gram-positive bacteria (S. epidermidis). These approaches can be used for (i) luminophores on the base of polymers nanocomposites development and/or (ii) preparation of materials with antimicrobial effects.
Citace poskytuje Crossref.org
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