Počet záznamů: 1
Characterisation of morphological, antimicrobial and leaching properties of in situ prepared polyurethane nanofibres doped with silver behenate
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SYSNO ASEP 0457813 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Characterisation of morphological, antimicrobial and leaching properties of in situ prepared polyurethane nanofibres doped with silver behenate Tvůrce(i) Dolina, J. (CZ)
Dvořák, L. (CZ)
Lederer, T. (CZ)
Vacková, Taťana (UMCH-V) RID
Mikmeková, Šárka (UPT-D) RID, SAI, ORCID
Šlouf, Miroslav (UMCH-V) RID, ORCID
Černík, M. (CZ)Zdroj.dok. RSC Advances. - : Royal Society of Chemistry
Roč. 6, č. 28 (2016), s. 23816-23826Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova polyurethane ; silver nanoparticles ; nanofibres Vědní obor RIV CD - Makromolekulární chemie Vědní obor RIV – spolupráce Ústav přístrojové techniky - Elektronika a optoelektronika, elektrotechnika CEP TE01020118 GA TA ČR - Technologická agentura ČR Institucionální podpora UMCH-V - RVO:61389013 ; UPT-D - RVO:68081731 UT WOS 000372253200084 EID SCOPUS 84960153272 DOI 10.1039/C6RA03614G Anotace Polyurethane nanofibres in situ doped with silver nanoparticles arising from three different silver precursors as well as zero-valent silver nanoparticles were prepared using free-surface electrospinning with no post-treatment. Throughout the experiment, the best results from all combinations tested were achieved for silver behenate doped nanofibres. These had homogenous nanoparticle coverage (some particles <1 nm in diameter) with uniform fibre morphology (evaluated using extra-high resolution scanning electron microscopy, field emission gun scanning electron microscopy and transmission electron microscopy). Silver behenate doped nanofibres also showed strong antimicrobial properties against Escherichia coli, displaying growth inhibition levels of >99% as well as inhibition zones of 1.20 ± 0.12 mm for E. coli, 1.45 ± 0.08 mm for Staphylococcus aureus and 0.62 ± 0.12 mm for Pseudomonas aeruginosa at concentrations corresponding to 1 McFarland. Moreover, after 168 h, silver behenate doped nanofibres displayed the lowest silver leaching (5.8% of original silver content) of all samples prepared in this study. These nanofibres, therefore, represent a promising alternative to current silver-doped nanofibres prepared in situ. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2017
Počet záznamů: 1