Full metadata record
DC Field | Value | Language |
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dc.creator | Segura-Gonzalez, E.A. (Edwin A.) | - |
dc.creator | Olmos, D. (Dania) | - |
dc.creator | Lorente, M.A. (Miguel Ángel) | - |
dc.creator | Vélaz-Rivas, I. (Icíar) | - |
dc.creator | González-Benito, J. (Javier) | - |
dc.date.accessioned | 2019-04-16T16:09:26Z | - |
dc.date.available | 2019-04-16T16:09:26Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Gonzalez, E. A. S.; Olmos, D.; Lorente, M. A.; et al. "Preparation and characterization of polymer composite materials based on PLA/TiO2 for antibacterial packaging". Polymers. 10 (12), 2018, 1365 | es |
dc.identifier.issn | 2073-4360 | - |
dc.identifier.uri | https://hdl.handle.net/10171/56786 | - |
dc.description.abstract | Polymer composite materials based on polylactic acid (PLA) filled with titanium dioxide (TiO2) nanoparticles were prepared. The aim of this work was to investigate the antibacterial action of TiO2 against a strain of E. coli (DH5) to obtain information on their potential uses in food and agro-alimentary industry. PLA/TiO2 systems were prepared by a two-step process: Solvent casting followed by a hot-pressing step. Characterization was done as a function of particle size (21 nm and <100 nm) and particle content (0%, 1%, 5%, 10%, and 20%, wt %). Structural characterization carried out by X-ray diffraction (XRD) and Fourier Transformed Infrared spectroscopy (FTIR) did not reveal significant changes in polymer structure due to the presence of TiO2 nanoparticles. Thermal characterization indicated that thermal transitions, measured by differential scanning calorimetry (DSC), did not vary, irrespective of size or content, whereas thermogravimetric analysis (TGA) revealed a slight increase in the temperature of degradation with particle content. Bacterial growth and biofilm formation on the surface of the composites against DH5 Escherichia coli was studied. Results suggested that the presence of TiO2 nanoparticles decreases the amount of extracellular polymeric substance (EPS) and limits bacterial growth. | - |
dc.description.sponsorship | This work was financially supported by the projects MAT2014-59116-C2 (Ministerio de Economía y Competitividad), 2012/00130/004 (Fondos de Investigación de Fco. Javier Gonzalez Benito, Política de Reinversión de Costes Generales, Universidad Carlos III de Madrid), and 2011/00287/002 (Acción Estratégica en Materiales Compuestos Poliméricos e Interfases, Universidad Carlos III de Madrid). Secretaría Nacional de Ciencia, Tecnología e Innovación (SENACYT): APY-GC-2017b-33 (Convocatoria Pública de Generación de Capacidades Científicas y Tecnológicas 2017) from Panama and SENACYT Doctoral and Postdoctoral Fellowship 2005–2010 from Panama. | - |
dc.language.iso | en | - |
dc.rights | info:eu-repo/semantics/openAccess | - |
dc.subject | Polylactic acid (PLA) | - |
dc.subject | TiO2 nanoparticles | - |
dc.subject | Polymer nanocomposites | - |
dc.subject | Antibacterial packaging | - |
dc.title | Preparation and characterization of polymer composite materials based on PLA/TiO2 for antibacterial packaging | - |
dc.type | info:eu-repo/semantics/article | - |
dc.description.note | This is an open access article distributed under the Creative Commons: Atribution License (cc BY) | - |
dc.identifier.doi | 10.3390/polym10121365 | - |
dadun.citation.number | 12 | - |
dadun.citation.publicationName | Polymers | - |
dadun.citation.startingPage | 1365 | - |
dadun.citation.volume | 10 | - |
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