Influece of mechanical and chemical treatment of vermiculite on resulting antibacterial activity of organovermiculites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F12%3A86085270" target="_blank" >RIV/61989100:27640/12:86085270 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influece of mechanical and chemical treatment of vermiculite on resulting antibacterial activity of organovermiculites

Popis výsledku v původním jazyce

Grinding and acid treatment of clays modifies their surface and can significantly affect their resulting behaviour. The Mg-vermiculite was milled for 20 min using planetary ball mill Retsch. After sieving, fraction below 40 ?m was obtained (sample V). Half of this fraction was milled again in vertical jet mill Sturtevant (sample Vj). Parts of these milled samples were treated with HCl for 5 hours at 80°C (VA, VjA). Vermiculite samples with variously modified surface area were intercalated with chlorhexidine diacetate (CA) accordant with the cation exchange capacity of vermiculite. Chlorhexidine diacetate (substituted biguanidine) is used as antiseptic and/or disinfectant, and has very wide range of antibacterial activity being bactericidal or bacteriostatic against Gram-positive and Gram-negative bacteria. The antibacterial activity of prepared organoclays against Entrerococcus faecalis, Escherichia coli and Pseudomonas aeruginosa was evaluated by finding minimum inhibitory concentrati

Název v anglickém jazyce

Influece of mechanical and chemical treatment of vermiculite on resulting antibacterial activity of organovermiculites

Popis výsledku anglicky

Grinding and acid treatment of clays modifies their surface and can significantly affect their resulting behaviour. The Mg-vermiculite was milled for 20 min using planetary ball mill Retsch. After sieving, fraction below 40 ?m was obtained (sample V). Half of this fraction was milled again in vertical jet mill Sturtevant (sample Vj). Parts of these milled samples were treated with HCl for 5 hours at 80°C (VA, VjA). Vermiculite samples with variously modified surface area were intercalated with chlorhexidine diacetate (CA) accordant with the cation exchange capacity of vermiculite. Chlorhexidine diacetate (substituted biguanidine) is used as antiseptic and/or disinfectant, and has very wide range of antibacterial activity being bactericidal or bacteriostatic against Gram-positive and Gram-negative bacteria. The antibacterial activity of prepared organoclays against Entrerococcus faecalis, Escherichia coli and Pseudomonas aeruginosa was evaluated by finding minimum inhibitory concentrati

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NANOCON 2012 : 4th international conference : conference proceedings : October 23rd-25th 2012, hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-35-2

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

601-605

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 10. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000333697100110