The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles

The aim of this study was to examine the influence of accelerated UV-aging on the activity against chosen microorganisms and the mechanical properties of poly-lactic acid (PLA) films enhanced with ZnO nanoparticles. The pure PLA films and tri-layered PLAZnO1%/PLA/PLAZnO1% films of 150 µm thickness w...

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Autores principales: Mizielińska, Małgorzata, Kowalska, Urszula, Jarosz, Michał, Sumińska, Patrycja, Landercy, Nicolas, Duquesne, Emmanuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923836/
https://www.ncbi.nlm.nih.gov/pubmed/29670066
http://dx.doi.org/10.3390/ijerph15040794
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author Mizielińska, Małgorzata
Kowalska, Urszula
Jarosz, Michał
Sumińska, Patrycja
Landercy, Nicolas
Duquesne, Emmanuel
author_facet Mizielińska, Małgorzata
Kowalska, Urszula
Jarosz, Michał
Sumińska, Patrycja
Landercy, Nicolas
Duquesne, Emmanuel
author_sort Mizielińska, Małgorzata
collection PubMed
description The aim of this study was to examine the influence of accelerated UV-aging on the activity against chosen microorganisms and the mechanical properties of poly-lactic acid (PLA) films enhanced with ZnO nanoparticles. The pure PLA films and tri-layered PLAZnO1%/PLA/PLAZnO1% films of 150 µm thickness were extruded. The samples were treated with UV-A and Q-SUN irradiation. After irradiation the antimicrobial activity and mechanical properties of the films were analyzed. The results of the study demonstrated that PLA films did not inhibit the growth of Staphylococcus aureus, Bacillus cereus, Escherichia coli, Bacillus atrophaeus, and Candida albicans cells. PLA films with incorporated zinc oxide nanoparticles decreased the number of analyzed microorganisms. Accelerated UV aging had no negative effect on the activity of the film containing nano-ZnO against Gram-positive bacteria, but it influenced the activity against Gram-negative cells and C. albicans. Q-SUN irradiation decreased the antimicrobial effect of films with incorporated nanoparticles against B. cereus. UV-A and Q-UV irradiation did not influence the mechanical properties of PLA films containing incorporated ZnO nanoparticles.
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spelling pubmed-59238362018-05-03 The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles Mizielińska, Małgorzata Kowalska, Urszula Jarosz, Michał Sumińska, Patrycja Landercy, Nicolas Duquesne, Emmanuel Int J Environ Res Public Health Article The aim of this study was to examine the influence of accelerated UV-aging on the activity against chosen microorganisms and the mechanical properties of poly-lactic acid (PLA) films enhanced with ZnO nanoparticles. The pure PLA films and tri-layered PLAZnO1%/PLA/PLAZnO1% films of 150 µm thickness were extruded. The samples were treated with UV-A and Q-SUN irradiation. After irradiation the antimicrobial activity and mechanical properties of the films were analyzed. The results of the study demonstrated that PLA films did not inhibit the growth of Staphylococcus aureus, Bacillus cereus, Escherichia coli, Bacillus atrophaeus, and Candida albicans cells. PLA films with incorporated zinc oxide nanoparticles decreased the number of analyzed microorganisms. Accelerated UV aging had no negative effect on the activity of the film containing nano-ZnO against Gram-positive bacteria, but it influenced the activity against Gram-negative cells and C. albicans. Q-SUN irradiation decreased the antimicrobial effect of films with incorporated nanoparticles against B. cereus. UV-A and Q-UV irradiation did not influence the mechanical properties of PLA films containing incorporated ZnO nanoparticles. MDPI 2018-04-18 2018-04 /pmc/articles/PMC5923836/ /pubmed/29670066 http://dx.doi.org/10.3390/ijerph15040794 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mizielińska, Małgorzata
Kowalska, Urszula
Jarosz, Michał
Sumińska, Patrycja
Landercy, Nicolas
Duquesne, Emmanuel
The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title_full The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title_fullStr The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title_full_unstemmed The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title_short The Effect of UV Aging on Antimicrobial and Mechanical Properties of PLA Films with Incorporated Zinc Oxide Nanoparticles
title_sort effect of uv aging on antimicrobial and mechanical properties of pla films with incorporated zinc oxide nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923836/
https://www.ncbi.nlm.nih.gov/pubmed/29670066
http://dx.doi.org/10.3390/ijerph15040794
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