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dc.contributor.authorMorena Gatius, Ángela Gala
dc.contributor.authorIvanova, Kristina Dimitrova
dc.contributor.authorPérez Rafael, Silvia
dc.contributor.authorSánchez Soto, Miguel
dc.contributor.authorTzanov, Tzanko
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Polímers i Biopolímers
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.date.accessioned2020-03-19T10:30:02Z
dc.date.available2021-02-19T01:28:58Z
dc.date.issued2020-02-26
dc.identifier.citationMorena, A. G. [et al.]. Antibacterial polyurethane foams with incorporated lignin-capped silver nanoparticles for chronic wound treatment. "Industrial and engineering chemistry research (Online)", 26 Febrer 2020, vol. 59, núm. 10, p. 4504-4514.
dc.identifier.issn1520-5045
dc.identifier.urihttp://hdl.handle.net/2117/180503
dc.description.abstractLignin-capped silver nanoparticles were incorporated in situ into polyurethane foams during their polymerization to obtain multifunctional materials suitable for chronic wound dressing. Lignin with increased phenolic content, achieved through the enzymatic grafting of natural phenolic compounds, played the dual role of a silver reducing agent in the synthesis of the lignin-capped silver nanoparticles and as a nanoformulated polyol additive in the polyurethane composition able to react with isocyanate. The nanoparticles-embedded polyurethane foams showed over 4 and 5 logs bacterial growth reduction against the Gram-positive S. aureus and the Gram-negative P. aeruginosa, respectively, attributed to both the direct contact- and release-killing mechanisms. The swelling properties of the foams, related to their capacity to remove the excess of wound exudates containing deleterious oxidative species and enzymes, varied from 585 to 1145 % as a function of the content of nanoparticles. Overall, the physicomechanical and antibacterial properties of the foams, together with their biocompatibility and sustained release of silver, make these multifunctional materials suitable candidates for chronic wound dressings.
dc.format.extent11 p.
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.lcshPolymers -- Deterioration
dc.subject.lcshBiomedical materials
dc.subject.lcshNanoparticles
dc.subject.lcshPolymerization
dc.subject.otherAbsorption
dc.subject.otherOrganic polymers
dc.subject.otherFoams
dc.subject.otherBiopolymers
dc.subject.otherSilve
dc.titleAntibacterial polyurethane foams with incorporated lignin-capped silver nanoparticles for chronic wound treatment
dc.typeArticle
dc.subject.lemacPolímers -- Deterioració
dc.subject.lemacMaterials biomèdics
dc.subject.lemacNanopartícules
dc.subject.lemacPlata
dc.subject.lemacPolimerització
dc.contributor.groupUniversitat Politècnica de Catalunya. GBMI - Grup de Biotecnologia Molecular i Industrial
dc.contributor.groupUniversitat Politècnica de Catalunya. e-PLASCOM - Plàstics i Compòsits Ecològics
dc.identifier.doi10.1021/acs.iecr.9b06362
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://pubs.acs.org/doi/abs/10.1021/acs.iecr.9b06362
dc.rights.accessOpen Access
local.identifier.drac27083542
dc.description.versionPostprint (author's final draft)
local.citation.authorMorena, A. G.; Ivanova, K.; Perez, S.; Sanchez-Soto, M.; Tzanov, T.
local.citation.publicationNameIndustrial and engineering chemistry research (Online)
local.citation.volume59
local.citation.number10
local.citation.startingPage4504
local.citation.endingPage4514


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain