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| Description
| - In this first systematic study, we describe the influence of various surfactants and polymers on aggregation stability and antibacterial activity of silver nanoparticles (NPs) prepared by a modified Tollens process. The surfactant/polymer stabilizing effect was monitored using the newly established method based on a titration of the aqueous dispersion of the silver NPs by aqueous solution of poly(diallyldimethylammonium) chloride (PDDA). The aggregation process was evaluated by the dynamic light scattering (DLS) and UV/vis spectra measurements and finally confirmed by TEM. Among all of the investigated modifiers, two surfactants (sodium dodecyl sulfate-SDS and polyoxyethylenesorbitane monooleate-Tween 80) and one polymer (polyvinylpyr-rolidone-PVP 360) exhibit superior stabilization of the silver NP dispersions against the process of aggregation. The differences in the stabilization ability of various tested substances are discussed with respect to their structure and possible mechanism of the surface
- In this first systematic study, we describe the influence of various surfactants and polymers on aggregation stability and antibacterial activity of silver nanoparticles (NPs) prepared by a modified Tollens process. The surfactant/polymer stabilizing effect was monitored using the newly established method based on a titration of the aqueous dispersion of the silver NPs by aqueous solution of poly(diallyldimethylammonium) chloride (PDDA). The aggregation process was evaluated by the dynamic light scattering (DLS) and UV/vis spectra measurements and finally confirmed by TEM. Among all of the investigated modifiers, two surfactants (sodium dodecyl sulfate-SDS and polyoxyethylenesorbitane monooleate-Tween 80) and one polymer (polyvinylpyr-rolidone-PVP 360) exhibit superior stabilization of the silver NP dispersions against the process of aggregation. The differences in the stabilization ability of various tested substances are discussed with respect to their structure and possible mechanism of the surface (en)
- V této první systematické studii je popsán vlvi různých surfaktantů a polymerů na agregační stabilitu a antibakteriální aktivitu nanočástic stříbra připravených modifikovaným Tollensovým procesem. Stabilizující vliv surfaktantů resp. polymerů byl monitorován za použití nově vyvinuté metody založené na titraci vodné disperze nanočástic stříbra vodným roztokem poly(diallyldimethylammonium) chloridu (PDDA). Agregační proces byl sledován za pomoci dynamického rozptylu světla (DLS) a UV/Vis spekter a rovněž za pomocí TEM. Ze všech studovaných modifikátorů pouze dva surfaktanty (SDS a Tween 80) a jediný polymer (PVP-360) vykazují dobrou stabilizační účinnost proti agregaci. Antibakteriální aktivita modifikovaných nanočástic stříbra je významně zesílena obzvláště u SDS, kde minimální inhibiční koncentrace klesá až pod magickou hranici 1 mg/L. Současně byla nalezena korelace mezi agregační stabilitou a zvýšením antibakteriální aktivity v systémech stabilizovaných pomocí SDS, Tweenu 80 a polymeru PVP 360. (cs)
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| Title
| - Effect of surfactants and polymers on stability and antibacterial activity of silver nanoparticles (NPs)
- Effect of surfactants and polymers on stability and antibacterial activity of silver nanoparticles (NPs) (en)
- Vliv surfaktantů a polymerů na stabilitu a antibakteriální aktivitu nanočástic stříbra (cs)
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| skos:prefLabel
| - Effect of surfactants and polymers on stability and antibacterial activity of silver nanoparticles (NPs)
- Effect of surfactants and polymers on stability and antibacterial activity of silver nanoparticles (NPs) (en)
- Vliv surfaktantů a polymerů na stabilitu a antibakteriální aktivitu nanočástic stříbra (cs)
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| skos:notation
| - RIV/61989592:15310/08:00005707!RIV09-MSM-15310___
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| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(1M0512), Z(MSM6198959218), Z(MSM6198959223)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/08:00005707
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - BACTERIAL-RESISTANCE; ESCHERICHIA-COLI; LASER-ABLATION; IN-VITRO; REDUCTION; NANOWIRES; TOXICITY; PROTEIN; GLYCOL; BURN (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Physical Chemistry Part C: Nanomaterials and Interfaces
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Kvítek, Libor
- Kolář, Milan
- Panáček, Aleš
- Prucek, Robert
- Soukupová, Jana
- Zbořil, Radek
- Večeřová, Renata
- Holecová, Miroslava
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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