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45 results match your criteria: "Universitetskaya pl. 1[Affiliation]"
BMC Chem
August 2024
Department of Chemistry, Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006, Russian Federation.
Currently, there is a growing interest in the synthesis of heterocyclic compounds containing hydroquinoline fragments. This surge can be attributed to the broad range of pharmaceutical and industrial applications that these compounds possess. In this study, the synthesis of both linear and fused heterocyclic systems that incorporate hydroquinoline fragments was described.
View Article and Find Full Text PDFSmall
August 2024
Leibniz Institute of Photonic Technology, Department Functional Interfaces, Albert-Einstein Str. 9, 07745, Jena, Germany.
Here, a phenomenon of efficient oxygen exchange between a silicon surface and a thin layer of tin dioxide during chemical vapor deposition is presented, which leads to a unique Sn:SiO layer. Under thermodynamic conditions in the temperature range of 725-735 °C, the formation of nanostructures with volcano-like shapes in "active" and "dormant" states are observed. Extensive characterization techniques, such as electron microscopy, X-ray diffraction, synchrotron radiation-based X-ray photoelectron, and X-ray absorption near-edge structure spectroscopy, are applied to study the formation.
View Article and Find Full Text PDFPolymers (Basel)
August 2023
Department of Analytical Chemistry, Chemical Faculty, Voronezh State University, Universitetskaya pl. 1, 394018 Voronezh, Russia.
Molecules
May 2023
Department of Organic Chemistry, Faculty of Chemistry, Voronezh State University, Universitetskaya pl. 1, 394018 Voronezh, Russia.
Despite extensive research in the field of thrombotic diseases, the prevention of blood clots remains an important area of study. Therefore, the development of new anticoagulant drugs with better therapeutic profiles and fewer side effects to combat thrombus formation is still needed. Herein, we report the synthesis and evaluation of novel pyrroloquinolinedione-based rhodanine derivatives, which were chosen from 24 developed derivatives by docking as potential molecules to inhibit the clotting factors Xa and XIa.
View Article and Find Full Text PDFPhys Chem Chem Phys
April 2023
Institute of Biochemistry, Centre for Human and Molecular Biology (ZHMB), Saarland University, 66123 Saarbrücken, Germany.
Small
March 2023
Leibniz Institute of Photonic Technology, Research Department Functional Interfaces, Albert Einstein Str. 9, 07745, Jena, Germany.
The composition and atomic and electronic structure of a silicon nanowire (SiNW) array coated with tin oxide are studied at the spectromicroscopic level. SiNWs are covered from top to down with a wide bandgap tin oxide layer using a metal-organic chemical vapor deposition technique. Results obtained via scanning electron microscopy and X-ray diffraction showed that tin-oxide nanocrystals, 20 nm in size, form a continuous and highly developed surface with a complex phase composition responsible for the observed electronic structure transformation.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2022
Department of Pediatric Dentistry with Orthodontia, Voronezh State Medical University, Studentcheskaya Ul. 11, 394006 Voronezh, Russia.
In our paper, we discuss the results of a comprehensive structural-spectroscopic and microscopic analysis of non-stoichiometric nanocrystalline hydroxyapatite (CHAp) with low carbonate anion content and biomimetic hybrid nanomaterials produced on its basis. It was shown that hydroxyapatite nanocrystals synthesized by chemical precipitation and biogenic calcium source mimic the properties of biogenic apatite and also have a morphological organization of "core-shell" type. The "core" of the CHAp nanocrystal is characterized by an overabundance of calcium Ca/P~1.
View Article and Find Full Text PDFMembranes (Basel)
November 2022
Department of Physical Chemistry, Faculty of Chemistry and High Technologies, Kuban State University, ul. Stavropolskaya 149, 350040 Krasnodar, Russia.
Comput Struct Biotechnol J
July 2022
Institute of Biochemistry, Saarland University, 66123, Saarbrücken, Campus B 2.2, Germany.
During product isolation the received bioreceptors often do not exhibit a sufficient biochemical activity due to multistep dissociation and loss of cofactors. However, for bioelectrochemical applications the presence of cofactors is necessary for a successful oxidative or reductive conversion of the substrates to the products. Herein, we show how the immobilization of the required electroplated cofactors in a design of amperometric electrodes can assist the activity of apo-enzymes.
View Article and Find Full Text PDFBiochem Mosc Suppl B Biomed Chem
May 2022
Voronezh State University, Universitetskaya pl. 1, 394018 Voronezh, Russia.
Methylene blue, a phenothiazine dye, that is widely used in medicine and is under clinical trials as an agent for treatment of Alzheimer's disease. One of the factors of the unique therapeutic effect of methylene blue is its redox properties, allowing implementation of alternative electron transport: the dye accepts electrons from reducing equivalents in mitochondria and transfer them to other components of the respiratory chain or molecular oxygen. Azure I, an -dimethylated metabolite of methylene blue, is potentially a more effective compound than methylene blue, but its ability for alternative electron transport has not been studied yet.
View Article and Find Full Text PDFSensors (Basel)
April 2022
Faculty of Chemistry, Voronezh State University, Universitetskaya pl. 1, Voronezh 394018, Russia.
Non-destructive monitoring methods and continuous monitoring systems based on them are crucial elements of modern systems for the management and maintenance of assets which include reinforced concrete structures. The purpose of our study was to summarise the data on the most common sensors and systems for the non-destructive monitoring of reinforced concrete structures developed over the past 20 years. We considered systems based on electrochemical (potentiometry, methods related to polarisation) and physical (electromagnetic and ultrasonic waves, piezoelectric effect, thermography) examination methods.
View Article and Find Full Text PDFPolymers (Basel)
March 2022
Department of Algebra and Mathematical Methods of Fluid Dynamics, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia.
In this paper we consider the initial-boundary value problem describing the motion of weakly concentrated aqueous polymer solutions. The model involves the regularized Jaumann's derivative in the rheological relation. Also this model is considered with non-linear viscosity.
View Article and Find Full Text PDFNanomaterials (Basel)
June 2021
Department of Solid State Physics and Nanostructures, Faculty of Physics, Voronezh State University, Universitetskaya pl. 1, 394018 Voronezh, Russia.
The results of complex studies of structural-phase transformations and magneto-optical properties of nanocomposites (CoFeZr) (MgF) depending on the metal alloy content in the dielectric matrix are presented. Nanocomposites were deposited by ion-beam sputtering onto glass and glass-ceramic substrate. By studying the spectral and field dependences of the transversal Kerr effect (TKE), it was found that the transition of nanocomposites from superparamagnetic to the ferromagnetic state occurs in the region of ~30 at%, that corresponds to the onset the formation of ferromagnetic nanocrystals CoFeZr with hexagonal syngony in amorphous dielectric matrix of MgF.
View Article and Find Full Text PDFAnalyst
April 2021
Department of Chemistry, Voronezh State University, Universitetskaya pl. 1, 394006, Voronezh, Russia.
Amperometric nanobiosensors are crucial time and cost effective analytical tools for the detection of a wide range of bioanalytes, viz. glucose present in complex environments at very low concentrations. Although the excellent analytical performance of nanobiosensors is undoubted, their exact molecular structure often remains unclear.
View Article and Find Full Text PDFSmall
February 2021
Leibniz Institute of Photonic Technology, Albert Einstein Str. 9, Jena, 07745, Germany.
Efficient light-stimulated hydrogen generation from top-down produced highly doped n-type silicon nanowires (SiNWs) with silver nanoparticles (AgNPs) in water-containing medium under white light irradiation is reported. It is observed that SiNWs with AgNPs generate at least 2.5 times more hydrogen than SiNWs without AgNPs.
View Article and Find Full Text PDFZootaxa
April 2020
Voronezh State University, Universitetskaya pl. 1, Voronezh, 394018 Russia..
Three new fossil species of the genus Tingiometra Heiss et al., 2015 (T. pankowskii sp.
View Article and Find Full Text PDFZootaxa
September 2020
Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006, Russia.
Thrypticus caeruleus Naglis Negrobov sp. nov. and T.
View Article and Find Full Text PDFMembranes (Basel)
December 2019
MEGA a.s., Pod Vinicí 87, 471 27 Stráž podRalskem, Czech Republic.
A comparative analysis of the effect of the manufacturing technology of heterogeneousion-exchange membranes Ralex CM Pes manufactured by MEGA a.s. (Czech Republic) on the structural properties of their surface and cross section by SEM was carried out.
View Article and Find Full Text PDFComp Cytogenet
December 2018
Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia Zoological Institute, Russian Academy of Sciences St. Petersburg Russia.
The karyotypes of 10 species from 9 genera of the family Tingidae (Hemiptera, Heteroptera, Cimicomorpha) are described and illustrated for the first time. These species are: (Spinola, 1837), (Goeze, 1778), (Fieber, 1861), Vásárhelyi, 1977, (Herrich-Schaeffer, 1830), Tingis (Neolasiotropis) pilosa Hummel, 1825, and T. (Tropidocheila) reticulata Herrich-Schaeffer, 1835, all with 2n = 12A + XY, as well as (Wolff, 1804), Derephysia (Paraderephysia) longispina Golub, 1974, and Fieber, 1844, all with 2n = 12A + X(0).
View Article and Find Full Text PDFZootaxa
July 2018
Voronezh State University, Universitetskaya pl. 1, Voronezh, 394018 Russia..
Two new fossil species (Phatnoma pulchra sp. nov., Leptopharsa antica sp.
View Article and Find Full Text PDFComp Cytogenet
October 2016
Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia.
As of now, within the lace bug family Tingidae (Cimicomorpha), only 1.5% of the species described have been cytogenetically studied. In this paper, male karyotypes of , , , , and were studied using FISH mapping with an 18S rDNA marker.
View Article and Find Full Text PDFJ Acoust Soc Am
November 2016
Woods Hole Oceanographic Institution, 98 Water Street, MS No. 12, Woods Hole, Massachusetts 02543, USA.
Analyses of fluctuations of low frequency signals (300 ± 30 Hz) propagating in shallow water in the presence of nonlinear internal waves (NIWs) in the Shallow Water 2006 experiment are carried out. Signals were received by a vertical line array at a distance of ∼20 km from the source. A NIW train was moving totally inside of the acoustic track, and the angle between the wave front of the NIW and the acoustic track in the horizontal plane was ∼10°.
View Article and Find Full Text PDFZootaxa
August 2016
Rishiri Town Museum, Senhoshi, Rishiri Island, Hokkaido, 097-0311, Japan.; Email:
Adv Colloid Interface Sci
September 2016
Institut Européen des Membranes, UMR 5635, Université Montpellier, ENSCM, CNRS, CC047, 34095 Montpellier Cedex 5, France.
Considering diffusion near a solid surface and simplifying the shape of concentration profile in diffusion-dominated layer allowed Nernst and Brunner to propose their famous equation for calculating the solute diffusion flux. Intensive (overlimiting) currents generate electroconvection (EC), which is a recently discovered interfacial phenomenon produced by the action of an external electric field on the electric space charge formed near an ion-selective interface. EC microscale vortices effectively mix the depleted solution layer that allows the reduction of diffusion transport limitations.
View Article and Find Full Text PDFComput Biol Med
April 2016
Voronezh State University, Universitetskaya Pl.1, Voronezh 394006, Russia. Electronic address:
Using computer modeling, virtual screening of high-affinity ligands for immobilization of inulinase - an enzyme that cleaves inulin and fructose-containing polymers to fructose - has been performed. The inulinase molecule from Aspergillus ficuum (pdb: 3SC7) taken from the database of protein structures was used as a protein model and the target for flexible docking. The set of ligands studied included simple sugars (activators, inhibitors, products of enzymatic catalysis), as well as high-molecular weight compounds (polycation and polyanion exchange resins, glycoproteins, phenylalanine-proline peptide, polylactate, and caffeine).
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