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Antibacterial films made of ionic complexes of poly(y-glutamic acid) and ethyl lauroyl arginate
dc.contributor.author | Gamarra Montes, Ana |
dc.contributor.author | Missagia, Beatriz |
dc.contributor.author | Morató Farreras, Jordi |
dc.contributor.author | Muñoz Guerra, Sebastián |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria |
dc.date.accessioned | 2018-01-24T09:48:35Z |
dc.date.available | 2018-01-24T09:48:35Z |
dc.date.issued | 2017-12-24 |
dc.identifier.citation | Gamarra, A., Missagia, B., Morato, J., Muñoz, S. Antibacterial films made of ionic complexes of poly(y-glutamic acid) and ethyl lauroyl arginate. "Polymers", 24 Desembre 2017, vol. 10, núm. 1., p.1-14 |
dc.identifier.issn | 2073-4360 |
dc.identifier.uri | http://hdl.handle.net/2117/113128 |
dc.description.abstract | © 2017 by the author. The biocide agent LAE (ethyl aN-lauroyl l-arginate chloride) was coupled with poly(y-glutamic acid) (PGGA) to form stable ionic complexes with LAE:PGGA ratios of 1 and 0.5. The nanostructure adopted by these complexes and its response to thermal changes were examined in detail by Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) using synchrotron radiation in real time. A layered biphasic structure with LAE filling the space between the polypeptidic sheets was adopted in these complexes. The complexes were stable up to above 250 °C, non-water soluble, and were able to form consistent transparent films. The release of LAE from the complexes upon incubation in aqueous buffer was examined and found to depend on both pH and complex composition. The antibacterial activity of films made of these complexes against Gram-positive (L. monocytogenes and S. aureus) and Gram-negative (E. coli and S. enterica) bacteria was preliminary evaluated and was found to be very high against the formers and only moderate against the later. The bactericide activity displayed by the LAE·PGGA complexes was directly related with the amount of LAE that was released from the film to the environment |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química |
dc.subject.lcsh | Protective coatings |
dc.subject.lcsh | Polymers |
dc.subject.other | Antibacterial polymer complexes |
dc.subject.other | biocide polyglutamic acid |
dc.subject.other | comb-like polyglutamic acid complexes |
dc.subject.other | ethyl lauroyl arginate |
dc.subject.other | ionic polyglutamic acid complexes |
dc.title | Antibacterial films made of ionic complexes of poly(y-glutamic acid) and ethyl lauroyl arginate |
dc.type | Article |
dc.subject.lemac | Polímers |
dc.subject.lemac | Revestiments protectors |
dc.subject.lemac | Poliuretans |
dc.contributor.group | Universitat Politècnica de Catalunya. POL - Polímers Industrials Avançats i Biopolímers Tecnològics |
dc.contributor.group | Universitat Politècnica de Catalunya. SUMMLab - Sustainability Measurement and Modeling Lab |
dc.identifier.doi | 10.3390/polym10010021 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.mdpi.com/2073-4360/10/1/21 |
dc.rights.access | Open Access |
local.identifier.drac | 21714251 |
dc.description.version | Postprint (published version) |
local.citation.author | Gamarra, A.; Missagia, B.; Morato, J.; Muñoz, S. |
local.citation.publicationName | Polymers |
local.citation.volume | 10 |
local.citation.number | 1 |
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