Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Velgosova, Oksana, Mačák, Lívia, Múdra, Erika, Vojtko, Marek, Lisnichuk, Maksym
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
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
_version_ 1784874671080996864
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