Antibacterial activity of SiO 2/hydroxypropyl cellulose hybrid materials containing silver nanoparticles

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creativework.keywordsAntibacterial activity, Hydroxypropyl cellulose, Silver nanoparticles, Sol-gel
dc.contributor.authorAngelova T.
dc.contributor.authorRangelova N.
dc.contributor.authorYuryev R.
dc.contributor.authorGeorgieva N.
dc.contributor.authorMüller R.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:47:57Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:47:57Z
dc.date.issued2012-07-01
dc.description.abstractSilica hybrid materials containing tetraethyl orthosilicate (TEOS) as SiO 2 precursor, hydroxypropyl cellulose (HPC) as an organic compound with incorporation of silver were prepared, and their structure and surface morphology were examined by FTIR measurements and SEM. The quantity of organic substance was 5 wt.% and the silver concentration varied from 0.5 to 2.5 wt.%. It is suggested that the main structural units build an amorphous network of synthesized hybrids from depolymerized [SiO 4] tetrahedra giving strong bands at 1050 and 790 cm - 1. The surface morphology changed from smooth to rough with the increasing amount of silver. The possible antibacterial behavior of the hybrid materials was also studied. The results indicate pronounced antibacterial performance against Escherichia coli and Bacillus subtilis. Highest antibacterial activity was detected against B. subtilis. The increase of silver concentration up to 2.5 wt.% Ag leads to stronger antibacterial effects with both strains. © 2012 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.msec.2012.03.015
dc.identifier.issn0928-4931
dc.identifier.scopusSCOPUS_ID:84861530659en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/242
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84861530659&origin=inward
dc.titleAntibacterial activity of SiO 2/hydroxypropyl cellulose hybrid materials containing silver nanoparticles
dc.typeArticle
oaire.citation.issue5
oaire.citation.volume32
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