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| rdf:type
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| Description
| - Titanium dioxide (TiO2) occurs in three basic modifications anatase, rutile and brookite. Anatase is widely studied due to its very good photocatalytic properties, which may be used in additives to paints and construction materials, for degradation of organic pollutants in air and water, etc. Nanoparticles of TiO2 show good photocatalytic activity, but may also pose some environmental risks, due to their higher biological activity including potential penetration into cells. When TiO2 nanoparticles are tightly anchored to a suitable type of matrix (e.g. – kaolinite), they demonstrate photodegradable properties together with lowered environmental risk due to decreased mobility in environmental media. Biological activity of titanium dioxide nanoparticles is known and therefore testing of antibacterial activity of kaolinite/TiO2 composite was performed. Kaolinite/TiO2 composites with 20 and 40 wt% of TiO2 were prepared, dried at 105°C and calcined at 600°C. The calcination caused transformation of kaolinite to metakaolinite and origination of the metakaolinite/TiO2 composite. Spectroscopic methods revealed titanium dioxide to be present only in form of anatase in all the samples evaluated (non-calcined and calcined) and also transformation of kaolinite to metakaolinite after the calcination treatment. Standard microdilution test was used to determine the antibacterial activity using four human pathogenic bacterial strains (Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa). Antibacterial assays found all the KATI samples to have antibacterial potency. The non-calcined composite with 40 wt% of TiO2 was found to have highest antibacterial activity to all the strains used.
- Titanium dioxide (TiO2) occurs in three basic modifications anatase, rutile and brookite. Anatase is widely studied due to its very good photocatalytic properties, which may be used in additives to paints and construction materials, for degradation of organic pollutants in air and water, etc. Nanoparticles of TiO2 show good photocatalytic activity, but may also pose some environmental risks, due to their higher biological activity including potential penetration into cells. When TiO2 nanoparticles are tightly anchored to a suitable type of matrix (e.g. – kaolinite), they demonstrate photodegradable properties together with lowered environmental risk due to decreased mobility in environmental media. Biological activity of titanium dioxide nanoparticles is known and therefore testing of antibacterial activity of kaolinite/TiO2 composite was performed. Kaolinite/TiO2 composites with 20 and 40 wt% of TiO2 were prepared, dried at 105°C and calcined at 600°C. The calcination caused transformation of kaolinite to metakaolinite and origination of the metakaolinite/TiO2 composite. Spectroscopic methods revealed titanium dioxide to be present only in form of anatase in all the samples evaluated (non-calcined and calcined) and also transformation of kaolinite to metakaolinite after the calcination treatment. Standard microdilution test was used to determine the antibacterial activity using four human pathogenic bacterial strains (Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa). Antibacterial assays found all the KATI samples to have antibacterial potency. The non-calcined composite with 40 wt% of TiO2 was found to have highest antibacterial activity to all the strains used. (en)
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| Title
| - Study of antibacterial activity of composites kaolinite/TiO2
- Study of antibacterial activity of composites kaolinite/TiO2 (en)
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| skos:prefLabel
| - Study of antibacterial activity of composites kaolinite/TiO2
- Study of antibacterial activity of composites kaolinite/TiO2 (en)
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| skos:notation
| - RIV/61989100:27640/12:86084795!RIV14-MSM-27640___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(ED0040/01/01), P(EE.2.3.20.0074), S
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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
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27640/12:86084795
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Pseudomonas aeruginosa; Enterococcus faecalis; Escherichia coli; Staphylococcus aureus; FTIR; Raman spectroscopy; antibacterial activity; kaolinite/TiO2 composite (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - NANOCON 2012 : 4th international conference : October 23rd-25th 2012, hotel Voroněž I, Brno, Czech Republic, EU [abstrakty]
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Lang, Jaroslav
- Matějová, Kateřina
- Peikertová, Pavlína
- Kukutschová, Jana
- Dědková, Kateřina
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open...ain/vavai/riv/wos
| |
| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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