Characterisation of morphological, antimicrobial and leaching properties of in situ prepared polyurethane nanofibres doped with silver behenate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F16%3A00457813" target="_blank" >RIV/68081731:_____/16:00457813 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/16:00457813 RIV/46747885:24620/16:00000742

Výsledek na webu

<a href="http://dx.doi.org/10.1039/C6RA03614G" target="_blank" >http://dx.doi.org/10.1039/C6RA03614G</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C6RA03614G" target="_blank" >10.1039/C6RA03614G</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characterisation of morphological, antimicrobial and leaching properties of in situ prepared polyurethane nanofibres doped with silver behenate

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Characterisation of morphological, antimicrobial and leaching properties of in situ prepared polyurethane nanofibres doped with silver behenate

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

28

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

23816-23826

Kód UT WoS článku

000372253200084

EID výsledku v databázi Scopus

2-s2.0-84960153272