About: Structural and antibacterial properties of original vermiculite and acidified vermiculite with silver     Goto   Sponge   Distinct   Permalink

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  • Original vermiculite and acidified vermiculites (formed at two different concentrations of hydrochloric acid solutions) were used as matrixes for precipitation and growth of silver nanoparticles. The precursor of silver for the Ag-vermiculites was silver nitrate solution. The vermiculite structure was studied by Infrared spectroscopy (IRS) and X-ray diffraction (XRD) analysis. The XRD patterns showed decrease in intensity of basal diffractions and disorder of vermiculite layered structure in dependence on the concentration of acid solution used on the vermiculite. Morphology of vermiculite flakes was studied using the scanning electron microscope (SEM). Measurement of the specific surface area (SSA) showed significant increase at vermiculites after acid treatment. The content of silver determined by X-ray fluorescence (XRF) analysis was lower at acidified vermiculite samples than at original vermiculite. The antibacterial effect of prepared Ag-vermiculite materials was studied on the Gram-positive (Enterococcus faecalis) and the Gram-negative (Pseudomonas aeruginosa) bacteria. The minimum inhibitory concentration (MIC) of the Ag-vermiculites confirmed that the possibility to inhibited bacterial growth depends on the concentration of silver in suspension and on the time of action.
  • Original vermiculite and acidified vermiculites (formed at two different concentrations of hydrochloric acid solutions) were used as matrixes for precipitation and growth of silver nanoparticles. The precursor of silver for the Ag-vermiculites was silver nitrate solution. The vermiculite structure was studied by Infrared spectroscopy (IRS) and X-ray diffraction (XRD) analysis. The XRD patterns showed decrease in intensity of basal diffractions and disorder of vermiculite layered structure in dependence on the concentration of acid solution used on the vermiculite. Morphology of vermiculite flakes was studied using the scanning electron microscope (SEM). Measurement of the specific surface area (SSA) showed significant increase at vermiculites after acid treatment. The content of silver determined by X-ray fluorescence (XRF) analysis was lower at acidified vermiculite samples than at original vermiculite. The antibacterial effect of prepared Ag-vermiculite materials was studied on the Gram-positive (Enterococcus faecalis) and the Gram-negative (Pseudomonas aeruginosa) bacteria. The minimum inhibitory concentration (MIC) of the Ag-vermiculites confirmed that the possibility to inhibited bacterial growth depends on the concentration of silver in suspension and on the time of action. (en)
Title
  • Structural and antibacterial properties of original vermiculite and acidified vermiculite with silver
  • Structural and antibacterial properties of original vermiculite and acidified vermiculite with silver (en)
skos:prefLabel
  • Structural and antibacterial properties of original vermiculite and acidified vermiculite with silver
  • Structural and antibacterial properties of original vermiculite and acidified vermiculite with silver (en)
skos:notation
  • RIV/61989100:27640/11:86080291!RIV13-MSM-27640___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP210/11/2215), S, Z(MSM6198910016)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 232718
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27640/11:86080291
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • antibacterial activity; specific surface area; characterization; silver; vermiculite (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [E4887807D1F8]
http://linked.open...v/mistoKonaniAkce
  • Brno
http://linked.open...i/riv/mistoVydani
  • Ostrava
http://linked.open...i/riv/nazevZdroje
  • 3rd International Conference NANOCON 2011
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...iv/tvurceVysledku
  • Hundáková, Marianna
  • Matějová, Kateřina
  • Pazdziora, Erich
  • Valášková, Marta
  • Študentová, Soňa
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000306686700100
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Tanger s.r.o.
https://schema.org/isbn
  • 978-80-87294-27-7
http://localhost/t...ganizacniJednotka
  • 27640
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