112020 20230519145547.0 doi 10.3390/polym13132123 sideral 127099 ART-2021-127099 eng Râpa M. Electrospun nanosystems based on PHBV and ZnO for ecological food packaging 2021 Access copy available to the general public Unrestricted The electrospun nanosystems containing poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and 1 wt% Fe doped ZnO nanoparticles (NPs) (with the content of dopant in the range of 0–1 wt% Fe) deposited onto polylactic acid (PLA) film were prepared for food packaging application. They were investigated by scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), antimicrobial analysis, and X-ray photoelectron spectrometry (XPS) techniques. Migration studies conducted in acetic acid 3% (wt/wt) and ethanol 10% (v/v) food simulants as well as by the use of treated ashes with 3% HNO3 solution reveal that the migration of Zn and Fe falls into the specific limits imposed by the legislation in force. Results indicated that the PLA/PHBV/ZnO:Fex electrospun nanosystems exhibit excellent antibacterial activity against the Pseudomonas aeruginosa (ATCC-27853) due to the generation of a larger amount of perhydroxyl (¿OOH) radicals as assessed using electron para-magnetic resonance (EPR) spectroscopy coupled with a spin trapping method. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.967 2021 POLYMER SCIENCE 16 / 90 = 0.178 2021 Q1 T1 0.726 2021 Polymers and Plastics 2021 Q1 Chemistry (miscellaneous) 2021 Q1 5.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Stefan M. Popa P.A. Toloman D. Leostean C. Borodi G. Vodnar D.C. Wrona M. Universidad de Zaragoza (orcid)0000-0003-2052-3012 Salafranca J. Universidad de Zaragoza (orcid)0000-0002-6607-1309 Nerín C. Universidad de Zaragoza (orcid)0000-0003-2685-5739 Barta D.G. Suciu M. Predescu C. Matei E. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 13, 13 (2021), 13132123[19 pp] Polymers (Basel) Polymers 2073-4360 11027112 http://zaguan.unizar.es/record/112020/files/texto_completo.pdf Versión publicada 2767360 http://zaguan.unizar.es/record/112020/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:112020 articulos driver 2023-05-18-15:45:06 ARTICLE