"Hund\u00E1kov\u00E1, Marianna" . "1214-9705" . . . "1" . "Acta Geodynamica et Geomaterialia" . "Silver and/or copper vermiculites and their antibacterial effect"@en . "Tom\u00E1\u0161ek, Vladim\u00EDr" . . "P(ED1.1.00/02.0070), P(GAP210/11/2215), S" . . . . "27640" . . . . "10.13168/AGG.2013.0009" . "http://www.irsm.cas.cz/index.php?page=acta_content&id=79" . "Silver and/or copper vermiculites and their antibacterial effect" . "[D6B368991B68]" . "CZ - \u010Cesk\u00E1 republika" . "Pazdziora, Erich" . . . "000320087700009" . "antibacterial effect; structure characterization; copper; silver; vermiculite"@en . "Hund\u00E1kov\u00E1, Marianna" . "Mat\u011Bjov\u00E1, Kate\u0159ina" . . . "Vermiculite (V) from Brazil with aqueous solutions AgNO3 and/or Cu(NO3)2 was used for preparation of nanocomposites V/Ag, V/Cu, V/AgCu and V/CuAg using two procedures and their effect on bacteria was compared. Structural changes were evaluated using X-ray diffraction (XRD) analysis, Infrared spectroscopy (IRS) and Scanning electron microscopy (SEM). Elemental chemical composition was determined using X-ray fluorescence (XRF) analysis and the solutions were analyzed by Atomic emission spectroscopy with inductively coupled plasma (AES-ICP). Antibacterial properties of Ag- and Cu-vermiculites and combined Ag/Cu-vermiculites were tested on two bacteria groups: (1) Gram-positive, (Staphylococcus aureus and Enterococcus faecalis) and (2) Gram-negative, (Pseudomonas aeruginosa and Klebsiella pneumoniae). The samples under antibacterial testing showed different effective times and minimum inhibitory concentration (MIC) values. The Gram-negative bacteria showed higher sensitivity to the prepared samples than Gram-positive bacteria. The combined Cu/Ag vermiculites stopped the bacterial growth at lower MIC value."@en . . "8"^^ . "RIV/61989100:27640/13:86085242!RIV14-GA0-27640___" . "Vermiculite (V) from Brazil with aqueous solutions AgNO3 and/or Cu(NO3)2 was used for preparation of nanocomposites V/Ag, V/Cu, V/AgCu and V/CuAg using two procedures and their effect on bacteria was compared. Structural changes were evaluated using X-ray diffraction (XRD) analysis, Infrared spectroscopy (IRS) and Scanning electron microscopy (SEM). Elemental chemical composition was determined using X-ray fluorescence (XRF) analysis and the solutions were analyzed by Atomic emission spectroscopy with inductively coupled plasma (AES-ICP). Antibacterial properties of Ag- and Cu-vermiculites and combined Ag/Cu-vermiculites were tested on two bacteria groups: (1) Gram-positive, (Staphylococcus aureus and Enterococcus faecalis) and (2) Gram-negative, (Pseudomonas aeruginosa and Klebsiella pneumoniae). The samples under antibacterial testing showed different effective times and minimum inhibitory concentration (MIC) values. The Gram-negative bacteria showed higher sensitivity to the prepared samples than Gram-positive bacteria. The combined Cu/Ag vermiculites stopped the bacterial growth at lower MIC value." . "3"^^ . . "105080" . . "10" . . . "Silver and/or copper vermiculites and their antibacterial effect"@en . "Silver and/or copper vermiculites and their antibacterial effect" . "RIV/61989100:27640/13:86085242" . . . . "5"^^ . "Val\u00E1\u0161kov\u00E1, Marta" .