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Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites
The aim of the work was to prepare a polymer matrix composite doped by silver nanoparticles and analyze the influence of silver nanoparticles (AgNPs) on polymers’ optical and toxic properties. Two different colloids of AgNPs were prepared by chemical reduction. The first colloid, a blue one, contain...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860772/ https://www.ncbi.nlm.nih.gov/pubmed/36679259 http://dx.doi.org/10.3390/polym15020379 |
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author | Velgosova, Oksana Mačák, Lívia Múdra, Erika Vojtko, Marek Lisnichuk, Maksym |
author_facet | Velgosova, Oksana Mačák, Lívia Múdra, Erika Vojtko, Marek Lisnichuk, Maksym |
author_sort | Velgosova, Oksana |
collection | PubMed |
description | The aim of the work was to prepare a polymer matrix composite doped by silver nanoparticles and analyze the influence of silver nanoparticles (AgNPs) on polymers’ optical and toxic properties. Two different colloids of AgNPs were prepared by chemical reduction. The first colloid, a blue one, contains stable triangular nanoparticles (the mean size of the nanoparticles was ~75 nm). UV–vis spectrophotometry showed that the second colloid, a yellow colloid, was very unstable. Originally formed spherical particles (~11 nm in diameter) after 25 days changed into a mix of differently shaped nanoparticles (irregular, triangular, rod-like, spherical, decahedrons, etc.), and the dichroic effect was observed. Pre-prepared AgNPs were added into the PVA (poly(vinyl alcohol)) polymer matrix and PVA–AgNPs composites (poly(vinyl alcohol) doped by Ag nanoparticles) were prepared. PVA–AgNPs thin layers (by a spin-coating technique) and fibers (by electrospinning and dip-coating techniques) were prepared. TEM and SEM techniques were used to analyze the prepared composites. It was found that the addition of AgNPs caused a change in the optical and antibiofilm properties of the non-toxic and colorless polymer. The PVA–AgNPs composites not only showed a change in color but a dichroic effect was also observed on the thin layer, and a good antibiofilm effect was also observed. |
format | Online Article Text |
id | pubmed-9860772 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98607722023-01-22 Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites Velgosova, Oksana Mačák, Lívia Múdra, Erika Vojtko, Marek Lisnichuk, Maksym Polymers (Basel) Article The aim of the work was to prepare a polymer matrix composite doped by silver nanoparticles and analyze the influence of silver nanoparticles (AgNPs) on polymers’ optical and toxic properties. Two different colloids of AgNPs were prepared by chemical reduction. The first colloid, a blue one, contains stable triangular nanoparticles (the mean size of the nanoparticles was ~75 nm). UV–vis spectrophotometry showed that the second colloid, a yellow colloid, was very unstable. Originally formed spherical particles (~11 nm in diameter) after 25 days changed into a mix of differently shaped nanoparticles (irregular, triangular, rod-like, spherical, decahedrons, etc.), and the dichroic effect was observed. Pre-prepared AgNPs were added into the PVA (poly(vinyl alcohol)) polymer matrix and PVA–AgNPs composites (poly(vinyl alcohol) doped by Ag nanoparticles) were prepared. PVA–AgNPs thin layers (by a spin-coating technique) and fibers (by electrospinning and dip-coating techniques) were prepared. TEM and SEM techniques were used to analyze the prepared composites. It was found that the addition of AgNPs caused a change in the optical and antibiofilm properties of the non-toxic and colorless polymer. The PVA–AgNPs composites not only showed a change in color but a dichroic effect was also observed on the thin layer, and a good antibiofilm effect was also observed. MDPI 2023-01-10 /pmc/articles/PMC9860772/ /pubmed/36679259 http://dx.doi.org/10.3390/polym15020379 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Velgosova, Oksana Mačák, Lívia Múdra, Erika Vojtko, Marek Lisnichuk, Maksym Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title | Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title_full | Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title_fullStr | Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title_full_unstemmed | Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title_short | Preparation, Structure, and Properties of PVA–AgNPs Nanocomposites |
title_sort | preparation, structure, and properties of pva–agnps nanocomposites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860772/ https://www.ncbi.nlm.nih.gov/pubmed/36679259 http://dx.doi.org/10.3390/polym15020379 |
work_keys_str_mv | AT velgosovaoksana preparationstructureandpropertiesofpvaagnpsnanocomposites AT macaklivia preparationstructureandpropertiesofpvaagnpsnanocomposites AT mudraerika preparationstructureandpropertiesofpvaagnpsnanocomposites AT vojtkomarek preparationstructureandpropertiesofpvaagnpsnanocomposites AT lisnichukmaksym preparationstructureandpropertiesofpvaagnpsnanocomposites |