The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites
The aim of this work was to propose a simple method for synthesizing differently shaped AgNPs and to find a suitable stabilizing/capping agent to ensure the non-toxicity of AgNPs. Using a chemical method, by simply changing the volume of reducing agents, we successfully prepared colloids of differen...
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2023-12-01
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| Online Access: | https://www.mdpi.com/2075-4701/13/12/1996 |
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| author | Oksana Velgosova Lívia Mačák Vladimír Mára Erika Múdra Marek Vojtko Maksym Lisnichuk Elena Čižmárová |
| author_facet | Oksana Velgosova Lívia Mačák Vladimír Mára Erika Múdra Marek Vojtko Maksym Lisnichuk Elena Čižmárová |
| author_sort | Oksana Velgosova |
| collection | DOAJ |
| description | The aim of this work was to propose a simple method for synthesizing differently shaped AgNPs and to find a suitable stabilizing/capping agent to ensure the non-toxicity of AgNPs. Using a chemical method, by simply changing the volume of reducing agents, we successfully prepared colloids of differently shaped AgNPs (spherical (~10 nm), triangular (~40 nm), rodlike (~30 nm), and a mixture of these shapes). The nanoparticle sizes and shapes affect the solution color. UV-VIS spectroscopy was used to evaluate the colloidal solutions, and transmission electron microscopy was used to analyze the shape and size of the nanoparticles. To create non-toxic and stable AgNPs, it is necessary to modify the surface properties of the nanoparticles; one possibility is to create a biocompatible layer on the nanoparticle surface. We successfully applied a combination of trisodium citrate and polyvinylpyrrolidone, thereby preventing the release of silver ions, which are responsible for the toxic effects of AgNPs. The synthesized nanoparticles show very low, mostly negligible antibiofilm activity against the green algae <i>Chlorella kessleri</i>. AgNPs were used to prepare polymer-AgNP composite thin layers and fibers. It was proved that AgNPs can influence polymer matrix properties. |
| first_indexed | 2024-03-08T20:31:36Z |
| format | Article |
| id | doaj.art-113d513d487b4598aa57dcb06fdbb451 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-08T20:31:36Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-113d513d487b4598aa57dcb06fdbb4512023-12-22T14:24:47ZengMDPI AGMetals2075-47012023-12-011312199610.3390/met13121996The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs CompositesOksana Velgosova0Lívia Mačák1Vladimír Mára2Erika Múdra3Marek Vojtko4Maksym Lisnichuk5Elena Čižmárová6Institute of Materials and Quality Engineering, Faculty of Materials Metallurgy and Recycling, Technical University of Košice, Letná 9/A, 042 00 Košice, SlovakiaInstitute of Materials and Quality Engineering, Faculty of Materials Metallurgy and Recycling, Technical University of Košice, Letná 9/A, 042 00 Košice, SlovakiaDepartment of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo nám. 13, 121 32 Prague 2, Czech RepublicSlovak Academy of Sciences, Division of Ceramic and Non-Metallic Systems, Institute of Materials Research, Watsonova 47, 040 01 Košice, SlovakiaSlovak Academy of Sciences, Division of Ceramic and Non-Metallic Systems, Institute of Materials Research, Watsonova 47, 040 01 Košice, SlovakiaFaculty of Science, Institute of Physics, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 040 01 Košice, SlovakiaDepartment of Materials Engineering, Faculty of Mechanical Engineering, Czech Technical University in Prague, Karlovo nám. 13, 121 32 Prague 2, Czech RepublicThe aim of this work was to propose a simple method for synthesizing differently shaped AgNPs and to find a suitable stabilizing/capping agent to ensure the non-toxicity of AgNPs. Using a chemical method, by simply changing the volume of reducing agents, we successfully prepared colloids of differently shaped AgNPs (spherical (~10 nm), triangular (~40 nm), rodlike (~30 nm), and a mixture of these shapes). The nanoparticle sizes and shapes affect the solution color. UV-VIS spectroscopy was used to evaluate the colloidal solutions, and transmission electron microscopy was used to analyze the shape and size of the nanoparticles. To create non-toxic and stable AgNPs, it is necessary to modify the surface properties of the nanoparticles; one possibility is to create a biocompatible layer on the nanoparticle surface. We successfully applied a combination of trisodium citrate and polyvinylpyrrolidone, thereby preventing the release of silver ions, which are responsible for the toxic effects of AgNPs. The synthesized nanoparticles show very low, mostly negligible antibiofilm activity against the green algae <i>Chlorella kessleri</i>. AgNPs were used to prepare polymer-AgNP composite thin layers and fibers. It was proved that AgNPs can influence polymer matrix properties.https://www.mdpi.com/2075-4701/13/12/1996chemical synthesissilver nanoparticlesUV-VIS spectroscopyTEMlong-term stabilitytoxicity |
| spellingShingle | Oksana Velgosova Lívia Mačák Vladimír Mára Erika Múdra Marek Vojtko Maksym Lisnichuk Elena Čižmárová The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites Metals chemical synthesis silver nanoparticles UV-VIS spectroscopy TEM long-term stability toxicity |
| title | The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites |
| title_full | The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites |
| title_fullStr | The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites |
| title_full_unstemmed | The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites |
| title_short | The Influence of Reagents on the Shape, Stability, and Toxicity of AgNPs and Their Use to Produce Polymer-AgNPs Composites |
| title_sort | influence of reagents on the shape stability and toxicity of agnps and their use to produce polymer agnps composites |
| topic | chemical synthesis silver nanoparticles UV-VIS spectroscopy TEM long-term stability toxicity |
| url | https://www.mdpi.com/2075-4701/13/12/1996 |
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