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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F11%3A33143327%21RIV13-MSM-15310___
rdf:type
skos:Concept n8:Vysledek
rdfs:seeAlso
http://www.nanocon.eu/files/proceedings/nanocon_11/lists/papers/1352.pdf
dcterms:description
High application potential of nanocomposite materials is rooted in the combination of unique properties of their individual components into one final material. Frequently, it can be formed by a bulk matrix in the form of microparticles and active nanostructured that are anchored into the matrix to form the composite. This combination of micro- and nanostructured materials results into improvement of e.g. mechanical properties and makes the manipulation with the nanoparticles (NPs) easier. Silicate materials, such as clay minerals or zeolites, are frequently used as the inert support for metal NPs. Therefore, this study is aimed on the preparation of the composite materials based on silicate materials and incorporated silver NPs. Aqueous dispersion of silver NPs, with the average diameter of approx. 30 nm, was prepared using a modified Tollens process. These silver NPs were adsorbed from the primarily prepared aqueous dispersion on the montmorillonite and several types of synthetic zeolites. Antibacterial activity of the prepared nanocomposites was tested using a micro-dilution method. The obtained results showed that the antibacterial activity of the silver NP containing composite is only slightly influenced by their incorporation/adsorption into/on this type of an inert support. However, incorporation/adsorption of the silver NPs into/on these silicate materials is rather weak as approx. 20-30% of the adsorbed silver could be released just by the performed washing of the as-prepared composites in distilled water. High application potential of nanocomposite materials is rooted in the combination of unique properties of their individual components into one final material. Frequently, it can be formed by a bulk matrix in the form of microparticles and active nanostructured that are anchored into the matrix to form the composite. This combination of micro- and nanostructured materials results into improvement of e.g. mechanical properties and makes the manipulation with the nanoparticles (NPs) easier. Silicate materials, such as clay minerals or zeolites, are frequently used as the inert support for metal NPs. Therefore, this study is aimed on the preparation of the composite materials based on silicate materials and incorporated silver NPs. Aqueous dispersion of silver NPs, with the average diameter of approx. 30 nm, was prepared using a modified Tollens process. These silver NPs were adsorbed from the primarily prepared aqueous dispersion on the montmorillonite and several types of synthetic zeolites. Antibacterial activity of the prepared nanocomposites was tested using a micro-dilution method. The obtained results showed that the antibacterial activity of the silver NP containing composite is only slightly influenced by their incorporation/adsorption into/on this type of an inert support. However, incorporation/adsorption of the silver NPs into/on these silicate materials is rather weak as approx. 20-30% of the adsorbed silver could be released just by the performed washing of the as-prepared composites in distilled water.
dcterms:title
Nanocomposites on the bases of silicate materials and silver nanoparticles Nanocomposites on the bases of silicate materials and silver nanoparticles
skos:prefLabel
Nanocomposites on the bases of silicate materials and silver nanoparticles Nanocomposites on the bases of silicate materials and silver nanoparticles
skos:notation
RIV/61989592:15310/11:33143327!RIV13-MSM-15310___
n8:predkladatel
n22:orjk%3A15310
n3:aktivita
n9:Z n9:S n9:P
n3:aktivity
P(1M0512), P(GAP304/10/1316), S, Z(MSM6198959218), Z(MSM6198959223)
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n5:7621175 n5:5555981 n5:2178117 n5:5892961 n5:8762163 n5:1733028
n3:druhVysledku
n18:D
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
214752
n3:idVysledku
RIV/61989592:15310/11:33143327
n3:jazykVysledku
n20:eng
n3:klicovaSlova
silver nanoparticles, composite, zeolites
n3:klicoveSlovo
n4:composite n4:zeolites n4:silver%20nanoparticles
n3:kontrolniKodProRIV
[731890B74855]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Ostrava
n3:nazevZdroje
3rd International Conference on NANOCON
n3:obor
n17:CF
n3:pocetDomacichTvurcuVysledku
6
n3:pocetTvurcuVysledku
7
n3:projekt
n10:1M0512 n10:GAP304%2F10%2F1316
n3:rokUplatneniVysledku
n14:2011
n3:tvurceVysledku
Panáček, Aleš Bardakci, Belgin Kvítek, Libor Soukupová, Jana Karlíková, Martina Prucek, Robert Kozáková, Soňa
n3:typAkce
n24:WRD
n3:wos
000306686700003
n3:zahajeniAkce
2011-09-21+02:00
n3:zamer
n15:MSM6198959218 n15:MSM6198959223
s:numberOfPages
2530
n16:hasPublisher
Tanger, Ostrava, Czech Republic
n19:isbn
978-80-87294-27-7
n12:organizacniJednotka
15310