Antimicrobial Activity of Ag:ZnO/Chitosan Composites

This paper deals with Ag, ZnO and Ag-doped ZnO nanoparticles embedded in chitosan (CS) matrix, prepared by hydrolysis of zinc acetate in isopropanol in the presence of lithium hydroxide (LiOH) in low temperature conditions. The nanoparticles embedded in the chitosan matrix were characterised by Xray...

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Main Authors: Mariana (BUȘILĂ) IBĂNESCU, Dana TUTUNARU, Viorica MUȘAT
Format: Article
Language:English
Published: Galati University Press 2014-09-01
Series:The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
Subjects:
Online Access:https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2312
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author Mariana (BUȘILĂ) IBĂNESCU
Dana TUTUNARU
Viorica MUȘAT
author_facet Mariana (BUȘILĂ) IBĂNESCU
Dana TUTUNARU
Viorica MUȘAT
author_sort Mariana (BUȘILĂ) IBĂNESCU
collection DOAJ
description This paper deals with Ag, ZnO and Ag-doped ZnO nanoparticles embedded in chitosan (CS) matrix, prepared by hydrolysis of zinc acetate in isopropanol in the presence of lithium hydroxide (LiOH) in low temperature conditions. The nanoparticles embedded in the chitosan matrix were characterised by Xray diffraction (XRD) and scanning electron microscopy (SEM). The antimicrobial activity of Ag/CS, ZnO/CS and Ag:ZnO/CS composites with respect to simple CS polymer was investigated by using the paper disc method on Mueller-Hinton agar without blood against the Gram-negative bacteria, Escherichia coli (E. coli) and the Gram-positive bacteria, Staphylococcus aureus (S. Aureus) on Mueller-Hinton agar with blood. The nanocomposites materials showed good antimicrobial activity, that recommends them for applications in medical and food packaging fields.
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spelling doaj.art-b098d50af5df459cb8a553f5132d12e12022-12-22T04:11:10ZengGalati University PressThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science2668-47482668-47562014-09-013732312Antimicrobial Activity of Ag:ZnO/Chitosan CompositesMariana (BUȘILĂ) IBĂNESCU0Dana TUTUNARU1Viorica MUȘAT2"Dunarea de Jos" University of Galati, Romania"Dunarea de Jos" University of Galati, Romania"Dunarea de Jos" University of Galati, RomaniaThis paper deals with Ag, ZnO and Ag-doped ZnO nanoparticles embedded in chitosan (CS) matrix, prepared by hydrolysis of zinc acetate in isopropanol in the presence of lithium hydroxide (LiOH) in low temperature conditions. The nanoparticles embedded in the chitosan matrix were characterised by Xray diffraction (XRD) and scanning electron microscopy (SEM). The antimicrobial activity of Ag/CS, ZnO/CS and Ag:ZnO/CS composites with respect to simple CS polymer was investigated by using the paper disc method on Mueller-Hinton agar without blood against the Gram-negative bacteria, Escherichia coli (E. coli) and the Gram-positive bacteria, Staphylococcus aureus (S. Aureus) on Mueller-Hinton agar with blood. The nanocomposites materials showed good antimicrobial activity, that recommends them for applications in medical and food packaging fields.https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2312chitosanZnO nanoparticlesantimicrobial activity
spellingShingle Mariana (BUȘILĂ) IBĂNESCU
Dana TUTUNARU
Viorica MUȘAT
Antimicrobial Activity of Ag:ZnO/Chitosan Composites
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
chitosan
ZnO nanoparticles
antimicrobial activity
title Antimicrobial Activity of Ag:ZnO/Chitosan Composites
title_full Antimicrobial Activity of Ag:ZnO/Chitosan Composites
title_fullStr Antimicrobial Activity of Ag:ZnO/Chitosan Composites
title_full_unstemmed Antimicrobial Activity of Ag:ZnO/Chitosan Composites
title_short Antimicrobial Activity of Ag:ZnO/Chitosan Composites
title_sort antimicrobial activity of ag zno chitosan composites
topic chitosan
ZnO nanoparticles
antimicrobial activity
url https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/2312
work_keys_str_mv AT marianabusilaibanescu antimicrobialactivityofagznochitosancomposites
AT danatutunaru antimicrobialactivityofagznochitosancomposites
AT vioricamusat antimicrobialactivityofagznochitosancomposites