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dc.contributor.authorPetkova Petkova, Petya Stoyanova
dc.contributor.authorFrancesko, Antonio
dc.contributor.authorMacedo Fernandes, Margarida Maria
dc.contributor.authorMendoza Gómez, Ernesto
dc.contributor.authorPerelshtein, Ilana
dc.contributor.authorAharon, Gedanken
dc.contributor.authorTzanov, Tzanko
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2014-01-10T12:35:02Z
dc.date.created2014-01-09
dc.date.issued2014-01-09
dc.identifier.citationPetkova, P. [et al.]. Sonochemical coating of textiles with hybrid ZnO/chitosan antimicrobial nanoparticles. "ACS applied materials and interfaces", 09 Gener 2014.
dc.identifier.issn1944-8244
dc.identifier.urihttp://hdl.handle.net/2117/21211
dc.description.abstractTextiles are good substrates for growth of microorg anisms especially under moisture and temperature conditions found in hospitals. Microbia l shedding from the body occurs continuously at contact of the patient with textile materials used in medical practice, contributing to the occurrence of hospital acquired infections. Thus, the use of efficient antimicrobial textiles is necessary to prevent the transfer of pathogens a nd the infection incidence. In this work, hybrid antimicrobial coatings were generated on cotton fab rics by means of a one-step simultaneous sonochemical deposition of ZnO nanoparticles (NPs) and chitosan. The process was further optimized in terms of reagents concentration and pr ocessing time in order to improve the antibacterial properties of the fabric and ensure t heir biocompatibility. The highest antibacterial activity of the fabrics against two medically relev ant bacterial species was achieved in a 30 min sonochemical coating process using 2 mM ZnO NPs sus pension. When chitosan was simultaneously deposited with the same amount of Zn O, the obtained hybrid NPs coating displayed higher by 48 and 17 % antibacterial activ ity against Staphylococcus aureus and Escherichia coli , respectively. The presence of biopolymer also imp roved the durability of the antimicrobial effect of the coatings by 21 % for Staphylococcus aureus and 40 % for Escherichia coli , evaluated after applying multiple washing cycles at hospital laundering regimes. Finally, 87 % biocompatibility improvement supported by fibrobl ast viability was observed for the hybrid ZnO/chitosan coating compared to the steady decreas e of cells viability over one week in contact with the fabrics coated with ZnO alone.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshSonochemistry
dc.titleSonochemical coating of textiles with hybrid ZnO/chitosan antimicrobial nanoparticles
dc.typeArticle
dc.subject.lemacSonoquímica
dc.contributor.groupUniversitat Politècnica de Catalunya. GBMI - Grup de Biotecnologia Molecular i Industrial
dc.identifier.doi10.1021/am404852d
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://pubs.acs.org/doi/abs/10.1021/am404852d
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac12959317
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/228730/EU/A pilot line of antibacterial and antifungal medical textiles based on a sonochemical process/SONO
dc.date.lift10000-01-01
local.citation.authorPetkova, P.; Francesko, A.; Macedo, M.M.; Mendoza, E.; Perelshtein, I.; Aharon , G.; Tzanov, T.
local.citation.publicationNameACS applied materials and interfaces


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