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Title: INVESTIGATION OF ANTIBACTERIAL EFFECT OF CHITOSAN-PVA MATRICES CONTAINED SILVER NANOPARTICLES
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INVESTIGATION OF ANTIBACTERIAL EFFECT OF CHITOSAN-PVA MATRICES CONTAINED SILVER NANOPARTICLES
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1314-2704
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English
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17
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61
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The present work aimed to investigation of influence molecular weight of chitosan, method of silver nanoparticles producing and immobilization, amount of cross-linking agent on antibacterial activity. Silver was incorporated in the matrix in two ways: 1 ? by the recovery of silver ions from AgNO3 solution; 2 - by addition to hydrogel the silver nanoparticles, obtained previously by microbiological synthesis. The molecular weight of chitosan shows strong influence on internal structure of matrices and on release of silver nanoparticle. The microbiological tests were carried out on two cultures: Bacillus cereus and Pseudomonas aeruginosa. It was found that when silver had been immobilized by reduction, the resulting matrixes do not have sufficient antibacterial activity. When the silver nanoparticles obtained by microbiological synthesis were immobilized on matrices, they retain their antibacterial activity.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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775-782
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29 June - 5 July, 2017
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website
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cdrom
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4450
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chitosan-PVA matri?es; antibacterial effect; silver nanoparticles
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