Effective antimicrobial materials based on low-density polyethylene (LDPE) with zinc oxide (ZnO) nanoparticles

Karina Rojas; Daniel Canales; Nicolas Amigo; Lissette Montoille; Alejandro Cament; Lina M. Rivas; O. Gil-Castell; Pablo Reyes; Maria Teresa Ulloa; A. Ribes-Greus; Paula A. Zapata

doi:10.1016/j.compositesb.2019.05.054

Effective antimicrobial materials based on low-density polyethylene (LDPE) with zinc oxide (ZnO) nanoparticles

Karina Rojas, Daniel Canales, Nicolas Amigo, Lissette Montoille, Alejandro Cament, Lina M. Rivas, O. Gil-Castell, Pablo Reyes, Maria Teresa Ulloa, A. Ribes-Greus, Paula A. Zapata

Research output: Contribution to journal › Article › peer-review

107 Scopus citations

Abstract

Effective antimicrobial polymeric nanocomposites were prepared with low density polyethylene (LDPE) and zinc oxide nanoparticles by melt compounding. These nanoparticles (∼17 nm) obtained by the sol–gel method, were used both as-synthesized and modified organically with oleic acid (Mod-ZnO). Young's modulus increased ∼15 and 18% for LDPE/ZnO and LDPE/Mod-ZnO, respectively, compared to neat LDPE. When these composites were irradiated with white light, they showed an increase with nanoparticle incorporation, and the antimicrobial properties against E. coli were ∼96–99%. The release of the Zn cations was related to the antimicrobial properties. These nanocomposites are attractive for use as food packaging without external irradiation.

Original language	English
Pages (from-to)	173-178
Number of pages	6
Journal	Composites Part B: Engineering
Volume	172
DOIs	https://doi.org/10.1016/j.compositesb.2019.05.054
State	Published - 1 Sep 2019
Externally published	Yes

Keywords

Antimicrobial packaging
Mechanical properties
Polyethylene
Zinc oxide nanoparticles

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10.1016/j.compositesb.2019.05.054

Cite this

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title = "Effective antimicrobial materials based on low-density polyethylene (LDPE) with zinc oxide (ZnO) nanoparticles",

abstract = "Effective antimicrobial polymeric nanocomposites were prepared with low density polyethylene (LDPE) and zinc oxide nanoparticles by melt compounding. These nanoparticles (∼17 nm) obtained by the sol–gel method, were used both as-synthesized and modified organically with oleic acid (Mod-ZnO). Young's modulus increased ∼15 and 18% for LDPE/ZnO and LDPE/Mod-ZnO, respectively, compared to neat LDPE. When these composites were irradiated with white light, they showed an increase with nanoparticle incorporation, and the antimicrobial properties against E. coli were ∼96–99%. The release of the Zn cations was related to the antimicrobial properties. These nanocomposites are attractive for use as food packaging without external irradiation.",

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author = "Karina Rojas and Daniel Canales and Nicolas Amigo and Lissette Montoille and Alejandro Cament and Rivas, {Lina M.} and O. Gil-Castell and Pablo Reyes and Ulloa, {Maria Teresa} and A. Ribes-Greus and Zapata, {Paula A.}",

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doi = "10.1016/j.compositesb.2019.05.054",

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T1 - Effective antimicrobial materials based on low-density polyethylene (LDPE) with zinc oxide (ZnO) nanoparticles

AU - Rojas, Karina

AU - Canales, Daniel

AU - Amigo, Nicolas

AU - Montoille, Lissette

AU - Cament, Alejandro

AU - Rivas, Lina M.

AU - Gil-Castell, O.

AU - Reyes, Pablo

AU - Ulloa, Maria Teresa

AU - Ribes-Greus, A.

AU - Zapata, Paula A.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Effective antimicrobial polymeric nanocomposites were prepared with low density polyethylene (LDPE) and zinc oxide nanoparticles by melt compounding. These nanoparticles (∼17 nm) obtained by the sol–gel method, were used both as-synthesized and modified organically with oleic acid (Mod-ZnO). Young's modulus increased ∼15 and 18% for LDPE/ZnO and LDPE/Mod-ZnO, respectively, compared to neat LDPE. When these composites were irradiated with white light, they showed an increase with nanoparticle incorporation, and the antimicrobial properties against E. coli were ∼96–99%. The release of the Zn cations was related to the antimicrobial properties. These nanocomposites are attractive for use as food packaging without external irradiation.

AB - Effective antimicrobial polymeric nanocomposites were prepared with low density polyethylene (LDPE) and zinc oxide nanoparticles by melt compounding. These nanoparticles (∼17 nm) obtained by the sol–gel method, were used both as-synthesized and modified organically with oleic acid (Mod-ZnO). Young's modulus increased ∼15 and 18% for LDPE/ZnO and LDPE/Mod-ZnO, respectively, compared to neat LDPE. When these composites were irradiated with white light, they showed an increase with nanoparticle incorporation, and the antimicrobial properties against E. coli were ∼96–99%. The release of the Zn cations was related to the antimicrobial properties. These nanocomposites are attractive for use as food packaging without external irradiation.

KW - Antimicrobial packaging

KW - Mechanical properties

KW - Polyethylene

KW - Zinc oxide nanoparticles

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JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

ER -

Effective antimicrobial materials based on low-density polyethylene (LDPE) with zinc oxide (ZnO) nanoparticles

Abstract

Keywords

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