Nanostructured Al-doped ZnO coatings on PLA films for food packaging applications

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dc.contributor.author Valerini, D.
dc.contributor.author Tammaro, L.
dc.contributor.author Di Benedetto, F.
dc.contributor.author Capodieci, L.
dc.contributor.author Terzi, R.
dc.contributor.author Rizzo, A.
dc.date.accessioned 2018-10-25T14:39:22Z
dc.date.available 2018-10-25T14:39:22Z
dc.date.issued 2018
dc.identifier.isbn 9781509051519
dc.identifier.uri http://hdl.handle.net/10840/9716
dc.description.abstract Food quality and safety are key issues when dealing with materials for food packaging applications. Polylactic acid (PLA) is widely used in food packaging, since it is considered safe for contact with food and it is flexible and optically highly transparent. Further improvements can be achieved through functionalization of the PLA surface with suitable materials. For example, coatings based on zinc oxide (ZnO) have been reported to show significant antimicrobial effects. With this aim, PLA films were extruded starting from commercial pellets and then functionalized by thin coatings made of nanostructured aluminum-doped zinc oxide (AZO). A set of AZO coatings was deposited at different sputtering power, and analyzed by scanning electron microscopy (SEM) inspection. X-ray diffraction was used to evaluate the structural properties of the AZO coatings. Optical transmission measurements revealed high transparency of the AZO-coated PLA films, with transmittance values around 80-90% in the visible range. Preliminary release tests were conducted by putting the coated films in contact with a fixed volume of a physiological saline solution and the amount of released AZO particles was evaluated by spectrophotometric measurements. © 2015 IEEE. it_IT
dc.language.iso en it_IT
dc.publisher Institute of Electrical and Electronics Engineers Inc. it_IT
dc.relation.ispartof 2015 1st Workshop on Nanotechnology in Instrumentation and Measurement, NANOFIM 2015 it_IT
dc.title Nanostructured Al-doped ZnO coatings on PLA films for food packaging applications it_IT
dc.type Intervento a convegno it_IT
dc.date.convegno 24 July 2015 through 25 July 2015
dc.description.nomeconvegno 1st Workshop on Nanotechnology in Instrumentation and Measurement, NANOFIM 2015 it_IT
dc.description.riferimenti Scopus ID: 2-s2.0-85052218549
dc.description.sede-enea Centro Ricerche Brindisi it_IT
dc.relation.pagenumber 207 - 211 it_IT
dc.subject.keywords food packaging it_IT
dc.subject.keywords nanostructured zinc oxide coatings it_IT
dc.subject.keywords polylactic acid (PLA) it_IT
dc.subject.tipologia-enea Tecnologie dei Materiali Brindisi it_IT
dc.description.info Authors: Valerini D., Tammaro L., Di Benedetto F., Capodieci L., Terzi R., Rizzo A. it_IT
dc.identifier.doi 10.1109/NANOFIM.2015.8425326
dc.identifier.url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052218549&doi=10.1109%2fNANOFIM.2015.8425326&partnerID=40&md5=aec270389b041a7f05cd59cd01bd7b0b

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