Synthesis of nanosized manganese methahydroxide stabilized by cystine

Blinov, Andrey Vladimirovich; Gvozdenko, Alexey Alekseevich; Кравцов, А.В.; Krandievsky, S.O.; Blinova, A. A.; Маглакелидзе, Давид Гурамиевич; Vakalov, D.S.; Remizov, Danil Mikhaylovich; Golik, Alexey Borisovich

doi:10.1016/j.matchemphys.2021.124510

Cited by 11 publications

(9 citation statements)

References 53 publications

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“…The determination of the average hydrodynamic radius of the particles was carried out by photon correlation spectroscopy on the Photocor-Complex device (“Antek-97” LLC, Moscow, Russia). The computer processing of the results was carried out using DynaLS V.2 software (“Fotokor“ LLC, Moscow, Russia) [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

Surface-Oxidized Polymer-Stabilized Silver Nanoparticles as a Covering Component of Suture Materials

et al. 2022

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In this work, we obtained silver nanoparticles stabilized with polyvinylpyrrolidone, ranging in size from 70 to 110 nm, which exhibits good crystallinity and anisotropic structure. For the first time, we studied the influence of the molar ratio of silver between silver and peroxide on the oxidation process of the nanoparticles and determined the regularities of this process by analyzing changes in absorption spectra. Our results showed that at molar ratios of Ag:Н2О2 = 1:1 and 1:5, dependences of changes in the intensity, position and half-width of the absorption band of the plasmon resonance are rectilinear. In vivo studies of silver nanoparticles have shown that silver nanoparticles belong to the toxicity class III (moderately hazardous substance) and to the third group according to the degree of accumulation. We established that silver nanoparticles and oxidized silver nanoparticles form a uniform layer on the surface of the suture material. We found that the use of the suture material with silver nanoparticles and oxidized silver nanoparticles does not cause allergic reactions in the organisms of laboratory animals.

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Section: Methodsmentioning

confidence: 99%

Surface-Oxidized Polymer-Stabilized Silver Nanoparticles as a Covering Component of Suture Materials

et al. 2022

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“…In the course of the work, integration with Protein Data Bank of Research Collaboratory for Structural Bioinformatics (RCSB PDB) was performed for accurate modeling of HCoV spike protein sections (Figure 2) and evaluation of the most affected nanosilver nodes. Computer quantum-chemical modeling of the process of silver nanoparticle's effect on coronavirus was performed in the QChem program using the IQmol molecular editor [45,46]. The calculation was performed on the equipment of the Data Processing Center (Schneider Electric) of the North Caucasus Federal University.…”

Section: Methodsmentioning

confidence: 99%

Computed Quantum Chemical Modeling of the Effect of Nanosilver on Coronavirus COVID-1

Mishununa¹,

Chapanov²,

Gakaeva³

et al. 2021

Pharmacophore

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This article presents an analysis of available scientific data on the morphology and nanostructure of the COVID-19 coronavirus. Possible mechanisms of influence of nanosilver particles on the coronavirus are considered. Models of nanosilver complexes with spike protein of coronavirus amino acids were constructed using computer quantum-chemical modeling. The values of electron density distribution, highest occupied molecular orbital, lowest unoccupied molecular orbital, and electron density distribution gradient for each constructed model are obtained. As a result of quantum chemical modeling, it was found that silver nanoparticles can interact with the following amino acids: Proline, glutamine, lysine, arginine, asparagine, histidine, glutamic and aspartic acids, tryptophan, and cysteine, which is due to the presence of additional -NH2, -NH, -SH and -COOH groups in these amino acids that are not involved in the formation of a peptide bond. The freedom of additional groups makes it possible to interact with nanosilver. Analysis of the obtained data showed that the most energy-efficient interaction is the formation of the "tryptophan-nanosilver" complex (E= -5856.83 kcal/mol). Based on the findings of quantum chemical calculations, the most stable complex is the "cysteine-nanosilver" (ΔE = 0.16 a.u).

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“…Such substances include some immersion liquids: glycerin, propylene glycol, concentrated glucose solutions, thanks to which optical illumination of biological tissues is achieved [2,18,19]. In addition to immersion liquids, nanoscale particles have recently been used to change the optical properties of biological tissues, for example: gold nanowells, nanorods, nanocubes, as well as silver nanoparticles, titanium dioxide and others [20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Research of Nanocompositions of Oxide Materials Based on Titanium Dioxide for use as Contrast Agents in Optical Coherence Tomography

Kupriyanov

Fidarova

Makhmudova

et al. 2021

JPRI

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In this paper, the contrasting properties of titanium dioxide nanoparticles in various compositions were considered. In the course of the work, methods for the synthesis of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2 and SiO2-TiO2-ZrO2 were developed; the microstructure of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2was studied; the stability of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 was determined. The elemental composition of the oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 has also been studied using SEM and XRD methods. It was found that SiO2-TiO2-ZrO2 nanocomposites with content of titanium dioxide from 8 to 9.5 % and zirconium dioxide from 0.5 to 2 % are completely insoluble in a highly alkaline medium. Thus, this composition is the most optimal for use as a contrast agent in optical coherence tomography.

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Synthesis of nanosized manganese methahydroxide stabilized by cystine

Cited by 11 publications

References 53 publications

Surface-Oxidized Polymer-Stabilized Silver Nanoparticles as a Covering Component of Suture Materials

Surface-Oxidized Polymer-Stabilized Silver Nanoparticles as a Covering Component of Suture Materials

Computed Quantum Chemical Modeling of the Effect of Nanosilver on Coronavirus COVID-1

Synthesis and Research of Nanocompositions of Oxide Materials Based on Titanium Dioxide for use as Contrast Agents in Optical Coherence Tomography

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