Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles
The aim of this study was to ascertain whether the combined action of metal nanoparticles (silver, copper, zinc oxide, iron oxide) would ensure the appropriate biocidal properties oflow-density polyethylene (LDPE) against pathogenic microorganisms. According to the research hypothesis, appropriately...
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MDPI AG
2021-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/15/4228 |
| _version_ | 1797525364210139136 |
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| author | Katarzyna Janczak Daria Kosmalska Daniel Kaczor Aneta Raszkowska-Kaczor Lauren Wedderburn Rafał Malinowski |
| author_facet | Katarzyna Janczak Daria Kosmalska Daniel Kaczor Aneta Raszkowska-Kaczor Lauren Wedderburn Rafał Malinowski |
| author_sort | Katarzyna Janczak |
| collection | DOAJ |
| description | The aim of this study was to ascertain whether the combined action of metal nanoparticles (silver, copper, zinc oxide, iron oxide) would ensure the appropriate biocidal properties oflow-density polyethylene (LDPE) against pathogenic microorganisms. According to the research hypothesis, appropriately selected concentrations of the applied metal nanoparticles allow for a high level of biocidal activity of polymeric materials against both model and pathogenic bacterial strains (<i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, <i>Pseudomonas aeruginosa</i>, <i>Legionella pneumophila</i>, <i>Salmonella enterica</i> subsp. <i>enterica</i>) and fungi (<i>Aspergillus brasiliensis</i>, <i>Saccharomyces cerevisiae</i>, <i>Candida albicans</i>, <i>Penicilium expansum</i>), whilst ensuring the safety of use due to the lack of migration of particles to the surrounding environment. Studies have shown that adding 4% of a biocide containing Ag, Cu, ZnO, and Fe<sub>2</sub>O<sub>3</sub> nanoparticles is the most optimal solution to reduce the number of <i>S. aureus</i>, <i>S. enterica</i> and <i>P. aeruginosa</i> by over 99%. The lowest effectiveness was observed against <i>L. pneumophila</i> bacteria. As for <i>E. coli</i>, a higher biocide content did not significantly increase the antibacterial activity. The results showed a high efficiency of the applied biocide at a concentration of 2% against fungal strains. The high efficiency of the obtained biocidal results was influenced by the uniform dispersion of nanoparticles in the material and their low degree of agglomeration. Furthermore, a slight migration of components to the environment is the basis for further research in the field of the application of the developed materials in industry. |
| first_indexed | 2024-03-10T09:11:46Z |
| format | Article |
| id | doaj.art-1fe6c08fd1fd44a48a822efde6eb4d31 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:11:46Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-1fe6c08fd1fd44a48a822efde6eb4d312023-11-22T05:53:36ZengMDPI AGMaterials1996-19442021-07-011415422810.3390/ma14154228Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal NanoparticlesKatarzyna Janczak0Daria Kosmalska1Daniel Kaczor2Aneta Raszkowska-Kaczor3Lauren Wedderburn4Rafał Malinowski5Łukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandThe aim of this study was to ascertain whether the combined action of metal nanoparticles (silver, copper, zinc oxide, iron oxide) would ensure the appropriate biocidal properties oflow-density polyethylene (LDPE) against pathogenic microorganisms. According to the research hypothesis, appropriately selected concentrations of the applied metal nanoparticles allow for a high level of biocidal activity of polymeric materials against both model and pathogenic bacterial strains (<i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, <i>Pseudomonas aeruginosa</i>, <i>Legionella pneumophila</i>, <i>Salmonella enterica</i> subsp. <i>enterica</i>) and fungi (<i>Aspergillus brasiliensis</i>, <i>Saccharomyces cerevisiae</i>, <i>Candida albicans</i>, <i>Penicilium expansum</i>), whilst ensuring the safety of use due to the lack of migration of particles to the surrounding environment. Studies have shown that adding 4% of a biocide containing Ag, Cu, ZnO, and Fe<sub>2</sub>O<sub>3</sub> nanoparticles is the most optimal solution to reduce the number of <i>S. aureus</i>, <i>S. enterica</i> and <i>P. aeruginosa</i> by over 99%. The lowest effectiveness was observed against <i>L. pneumophila</i> bacteria. As for <i>E. coli</i>, a higher biocide content did not significantly increase the antibacterial activity. The results showed a high efficiency of the applied biocide at a concentration of 2% against fungal strains. The high efficiency of the obtained biocidal results was influenced by the uniform dispersion of nanoparticles in the material and their low degree of agglomeration. Furthermore, a slight migration of components to the environment is the basis for further research in the field of the application of the developed materials in industry.https://www.mdpi.com/1996-1944/14/15/4228bactericidal propertiesfungistatic propertiespolyethylenenano-zincnano-silvernano-copper |
| spellingShingle | Katarzyna Janczak Daria Kosmalska Daniel Kaczor Aneta Raszkowska-Kaczor Lauren Wedderburn Rafał Malinowski Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles Materials bactericidal properties fungistatic properties polyethylene nano-zinc nano-silver nano-copper |
| title | Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles |
| title_full | Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles |
| title_fullStr | Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles |
| title_full_unstemmed | Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles |
| title_short | Bactericidal and Fungistatic Properties of LDPE Modified with a Biocide Containing Metal Nanoparticles |
| title_sort | bactericidal and fungistatic properties of ldpe modified with a biocide containing metal nanoparticles |
| topic | bactericidal properties fungistatic properties polyethylene nano-zinc nano-silver nano-copper |
| url | https://www.mdpi.com/1996-1944/14/15/4228 |
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