The Effect of the Properties of the Anion on the Process of Formation of a Copper Sol upon Reduction in a Solution of Poly(N-vinylpyrrolidone)

Ostaeva, G. Yu.; Grushina, V.V.; Eliseeva, E. A.; Isaeva, I. Yu.; Morenko, Ivan; Litmanovich, A. A.

doi:10.1134/s1560090421060208

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…As one of the cheapest and simplest methods, it is possible to consider the reduction of metal ions in the presence of a polymer protector that protects such nanoparticles from aggregation [8]. In addition, the use of a polymer protector makes it possible to control the growth of particles and their shape [9,10].…”

Section: Introductionmentioning

confidence: 99%

Hazard assessment of copper(I) oxide nanoparticles obtained by reduction in the presence of polymer protector

Morenko

Isaeva

Eliseeva

et al. 2022

J. Phys.: Conf. Ser.

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The article presents the results of a study of the danger of copper (I) oxide nanoparticles for the health of living organisms and ecological systems. A sol containing Cu2O nanoparticles was obtained by reducing metal ions in the presence of a polymer protector. The sol was then further processed to purify and separate it into its components. The products of synthesis and processing were examined using transmission electron microscopy, scanning electron microscopy, and X-ray diffraction. It has been established that as a result of processing Cu2O nanoparticles of spherical shape and a diameter of 34-149 nm (average diameter = 62 nm) were obtained. Factors affecting the hazard of this nanomaterial were identified. Using mathematical modeling methods, it was determined that the obtained nanoparticles have a hazard coefficient D= 1.773 in the case of laboratory production (medium level of potential hazard), D= 1.874 in the industrial production case (high level of potential hazard).

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Section: Introductionmentioning

confidence: 99%

Hazard assessment of copper(I) oxide nanoparticles obtained by reduction in the presence of polymer protector

Morenko

Isaeva

Eliseeva

et al. 2022

J. Phys.: Conf. Ser.

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Synthesis of copper-containing nanoparticles and their potential application as biocidal agents

Morenko,

Isaeva,

Grushina

et al. 2024

BIO Web Conf.

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The paper presents the results of a study on the possibility of obtaining Cu nanoparticles stabilized with various polymers using chemical reduction method. The following stabilizer-reductant pairs were used for nanoparticles synthesis: gelatin - ascorbic acid, polyvinylpyrrolidone - tert- butylamine borane, polyethylene oxide - hydrazine borane. The formation of Cu nanoparticles was confirmed by electron spectroscopy. All the samples studied showed an absorbance maximum in the region of 580 nm, in agreement with the literature data on the phenomenon of localized plasmon resonance of copper nanoparticles. Transmission electron microscopy showed that the nanoparticles are spherical with an average diameter of 6 nm. The stability of the synthesis products was evaluated by long-term incubation in test tubes under normal conditions. Nanoparticles obtained in the presence of gelatin were stable for 15 days, polyvinylpyrrolidone - 6 weeks, and polyethylene oxide - 2 weeks. The potential application of the obtained nanoparticles as biocidal agents was considered. It was found that the synergistic effect of the presence of the polymer can enhance the biocidal properties of the system. The synthesized products were found to have applications in agriculture, environmental protection, medicine, and as components of antibacterial coatings for public transportation and healthcare facilities.

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Traditional and green approaches to the synthesis of copper-containing nanoparticles using chemical reduction

Morenko,

Isaeva,

Odinokova

et al. 2024

E3S Web Conf.

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The problem of obtaining copper-containing nanoparticles by chemical reduction has been studied. A comparison is made of traditional and “green” approaches to synthesis. The experimental data obtained during the synthesis of copper nanoparticles in the presence of a polymer stabilizer (polyvinylpyrrolidone) and a reducing agent (tert-butylamine-borane), as well as literature data on the synthesis of nanoparticles using plant and conditionally “green” substances (glucose, extracts of Ocimum sanctum and Celastrus paniculatus leaves, Sarcostemma acidum stem). The advantages and disadvantages of these approaches are identified and discussed. It is noted that the industrial applicability of “green” methods is limited due to the need to create completely new production of reagents for synthesis. In addition, the application of green synthesis is difficult due to scalability and standardization issues. Environmental pollution associated with the production of plant extracts also requires additional assessment. It has been established that traditional synthesis methods remain relevant for modern industry, and “green” methods have prospects for use in the distant future.

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The Effect of the Properties of the Anion on the Process of Formation of a Copper Sol upon Reduction in a Solution of Poly(N-vinylpyrrolidone)

Cited by 4 publications

References 27 publications

Hazard assessment of copper(I) oxide nanoparticles obtained by reduction in the presence of polymer protector

Hazard assessment of copper(I) oxide nanoparticles obtained by reduction in the presence of polymer protector

Synthesis of copper-containing nanoparticles and their potential application as biocidal agents

Traditional and green approaches to the synthesis of copper-containing nanoparticles using chemical reduction

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