Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam

In the present study, a new method for the synthesis of the open-cell soft polyurethane foam (PUF) is developed. Silver nanoparticles are synthesized on the surface of ultrafine grain (100–500 nm) natural zeolite particles and this zeolite is than placed as a filler in the polyurethane. The Ag conte...

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Main Authors: Gy. Czel, L. Vanyorek, A. Sycheva, F. Kerekes, E. Szori-Doroghazi, D. Janovszky
Format: Article
Language:English
Published: Budapest University of Technology 2021-09-01
Series:eXPRESS Polymer Letters
Subjects:
Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0011261&mi=cd
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author Gy. Czel
L. Vanyorek
A. Sycheva
F. Kerekes
E. Szori-Doroghazi
D. Janovszky
author_facet Gy. Czel
L. Vanyorek
A. Sycheva
F. Kerekes
E. Szori-Doroghazi
D. Janovszky
author_sort Gy. Czel
collection DOAJ
description In the present study, a new method for the synthesis of the open-cell soft polyurethane foam (PUF) is developed. Silver nanoparticles are synthesized on the surface of ultrafine grain (100–500 nm) natural zeolite particles and this zeolite is than placed as a filler in the polyurethane. The Ag content of natural zeolite and PUF is about 5 wt%, and 1500 ppm, respectively. Most of the zeolite particles are partially or fully covered in the polyurethane cell wall which is favorable for long-term storage. However, as soon as the foam comes into contact with water or human sweat, the montmorillonite content of the zeolite swells and breaking through the cell wall of the foam structure. Indeed, particles of the zeolite protrude from the polyurethane matrix with the nano-silver particles showing a favourable biocide effect. The antibacterial effect of the natural zeolite containing Ag nanoparticles was examined against Escherichia coli (Gram-negative), and Micrococcus luteus (Gram-positive) strains in a 24 and 72 h interval. The results show that the natural zeolite containing Ag nanoparticles filler has an antibacterial effect, especially against Gram-positive bacteria.
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spelling doaj.art-87d20595936e40ab935632fb26cdceed2022-12-21T23:09:55ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2021-09-0115985386410.3144/expresspolymlett.2021.68Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foamGy. CzelL. VanyorekA. SychevaF. KerekesE. Szori-DoroghaziD. JanovszkyIn the present study, a new method for the synthesis of the open-cell soft polyurethane foam (PUF) is developed. Silver nanoparticles are synthesized on the surface of ultrafine grain (100–500 nm) natural zeolite particles and this zeolite is than placed as a filler in the polyurethane. The Ag content of natural zeolite and PUF is about 5 wt%, and 1500 ppm, respectively. Most of the zeolite particles are partially or fully covered in the polyurethane cell wall which is favorable for long-term storage. However, as soon as the foam comes into contact with water or human sweat, the montmorillonite content of the zeolite swells and breaking through the cell wall of the foam structure. Indeed, particles of the zeolite protrude from the polyurethane matrix with the nano-silver particles showing a favourable biocide effect. The antibacterial effect of the natural zeolite containing Ag nanoparticles was examined against Escherichia coli (Gram-negative), and Micrococcus luteus (Gram-positive) strains in a 24 and 72 h interval. The results show that the natural zeolite containing Ag nanoparticles filler has an antibacterial effect, especially against Gram-positive bacteria.http://www.expresspolymlett.com/letolt.php?file=EPL-0011261&mi=cdpolymer compositesantibacterial materialpolyurethane foamnatural fillernatural zeolite filler
spellingShingle Gy. Czel
L. Vanyorek
A. Sycheva
F. Kerekes
E. Szori-Doroghazi
D. Janovszky
Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
eXPRESS Polymer Letters
polymer composites
antibacterial material
polyurethane foam
natural filler
natural zeolite filler
title Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
title_full Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
title_fullStr Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
title_full_unstemmed Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
title_short Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
title_sort antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam
topic polymer composites
antibacterial material
polyurethane foam
natural filler
natural zeolite filler
url http://www.expresspolymlett.com/letolt.php?file=EPL-0011261&mi=cd
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AT lvanyorek antimicrobialeffectofsilvernanoparticlesplatednaturalzeoliteinpolyurethanefoam
AT asycheva antimicrobialeffectofsilvernanoparticlesplatednaturalzeoliteinpolyurethanefoam
AT fkerekes antimicrobialeffectofsilvernanoparticlesplatednaturalzeoliteinpolyurethanefoam
AT eszoridoroghazi antimicrobialeffectofsilvernanoparticlesplatednaturalzeoliteinpolyurethanefoam
AT djanovszky antimicrobialeffectofsilvernanoparticlesplatednaturalzeoliteinpolyurethanefoam