Toxicity evaluation of polyvinyltriazole and a related silver-containing nanocomposite

Прозорова, Г. Ф.; Pozdnyakov, A. S.; Ермакова, Т. Г.; Новиков, М. А.; Титов, Е. А.; Соседова, Л. М.

doi:10.1007/s11172-014-0709-1

Cited by 27 publications

(13 citation statements)

References 4 publications

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“…Among the important properties of this polymer are pharmacological activity, nontoxicity, and resistance to aggressive media. Silver nanoparticles incorporated into the PVT matrix exhibit high antibacterial, immunomodulatory, and cytotoxic activity, enhance body defenses, and exert a protective effect against the Yersinia pestis bacteria and anthrax [ 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

One-Pot Preparation of Metal–Polymer Nanocomposites in Irradiated Aqueous Solutions of 1-Vinyl-1,2,4-triazole and Silver Ions

et al. 2021

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Metal–polymer nanocomposite polyvinyltriazole–silver nanoparticles were obtained using one-pot synthesis in irradiated aqueous solutions of 1-vinyl-1,2,4-triazole (VT) and silver ions. Gel permeation chromatography data show that upon radiation initiation, the molecular weight of poly(1-vinyl-1,2,4-triazole) increases with increasing monomer concentration. To study the kinetics of polymerization and the features of the radiation–chemical formation of nanoparticles, UV-Vis spectroscopy was used. TEM images show a relatively small average size of the forming nanoparticles (2–3 nm) and a narrow size distribution, which shows the effective stabilization of nanoparticles by triazole substituents at a molar ratio of VT and silver ions of 25/1. The addition of ethyl alcohol was used to increase the efficiency of synthesis and suppress the crosslinking of macromolecules in solution. The results of the work show that aqueous–alcoholic solutions of 1 wt.% VT can be used to obtain soluble nanocomposite materials. 10 wt.% monomer solutions have prospects for use in the preparation of polymer gels filled with nanoparticles.

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Section: Introductionmentioning

confidence: 99%

One-Pot Preparation of Metal–Polymer Nanocomposites in Irradiated Aqueous Solutions of 1-Vinyl-1,2,4-triazole and Silver Ions

et al. 2021

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“…Intensive thermal destruction occurs at 330-450°C with 34.3% loss of the sample mass, accompanied by the exothermic effect at 350°C. At this stage, triazole and nitrile fragments of the polymer are abstracted (m/z = 67, 68, 26, 27) followed by oxidation to H 2 O, CH 4 , NH 3 , NO, CO 2 , and NO 2 (m/z = 16,17,18,30,44,46). At 450-760°C, the intensive exothermic effect, accompanied by 60.4% loss of the sample mass, is observed.…”

Section: Resultsmentioning

confidence: 99%

“…Earlier we have reported on the synthesis and properties of nanocomposites with silver nanoparticles in a matrix of 1-vinyl-1,2,4-triazole homo-and copolymers, possessing plasmon absorption, water solubility, and antimicrobial activity [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Silver-Containing Nanocomposites Based on 1-Vinyl-1,2,4-triazole and Acrylonitrile Copolymer

Pozdnyakov

Emel’yanov

Кузнецова

et al. 2019

Journal of Nanomaterials

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Insoluble silver-containing nanocomposites based on 1-vinyl-1,2,4-triazole and acrylonitrile copolymer was synthesized and characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, atomic absorption, X-ray diffraction, and thermogravimetric data analysis. The silver content of the nanocomposites varied from 8.0 to 23.5% (the silver content depends on the ratio of the copolymer-silver salt). Synthesis of silver nanocomposites was carried out by thermal treatment of a polymer complex of copolymer-silver salt without the use of an additional reducing agent. X-ray diffraction was used to control the formation of silver nanoparticles at different temperatures (210°С, 220°С, and 250°С). Synthesis of nanocomposites shows a developed porous structure with a channel diameter in most cases of 1-4 microns. The EPR monitoring of the nanoparticle germination and growth reveals that the generation of the nanocomposites proceeds via a stage of complex formation between the polymeric matrix and silver ions. The synthesized nanocomposites possess paramagnetic properties and show a narrow EPR symmetric signal with the concentration of unpaired electrons of 1020 spin/g, a g-factor 2.0050, and signal width 5-6 Gs. Thermal stability of silver-containing nanocomposites is up to 270-320°C.

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“…1-vinyl-1.2.4-triazole was obtained and purified by the method described in [37], and crotonic acid was purified by sublimation.…”

Section: Methodsmentioning

confidence: 99%

Electrosynthesis of gold nanocomposites based on copolymer of 1-vinyl-1,2,4-triazol with crotonic acid

Sargsyan

Agadjanyan

et al. 2022

J. Electrochem. Sci. Eng.

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In this work, we have synthesized and discussed the results of electrosynthesis of metal-polymer nanocomposites of gold. Nanocoatings were made on pure iron and steel electrodes by combining the process of electropolymerization of 1-vinyl-1.2.4-triazole with crotonic acid and cathodic deposition of gold. Using UV, IR and atomic absorption spectroscopies, X-ray phase analysis, as well as thermogravimetric and elemental analyses, the structure and composition of the synthesized nanocomposites and nanocomposite coatings were studied.

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Toxicity evaluation of polyvinyltriazole and a related silver-containing nanocomposite

Cited by 27 publications

References 4 publications

One-Pot Preparation of Metal–Polymer Nanocomposites in Irradiated Aqueous Solutions of 1-Vinyl-1,2,4-triazole and Silver Ions

One-Pot Preparation of Metal–Polymer Nanocomposites in Irradiated Aqueous Solutions of 1-Vinyl-1,2,4-triazole and Silver Ions

Synthesis and Characterization of Silver-Containing Nanocomposites Based on 1-Vinyl-1,2,4-triazole and Acrylonitrile Copolymer

Electrosynthesis of gold nanocomposites based on copolymer of 1-vinyl-1,2,4-triazol with crotonic acid

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