A5058387875- Petroleum Processing and Analysis
- Hydrocarbon exploration and reservoir analysis
- NMR spectroscopy and applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Molecular spectroscopy and chirality
- Carbohydrate Chemistry and Synthesis
- Luminescence and Fluorescent Materials
- Subcritical and Supercritical Water Processes
- Molecular Sensors and Ion Detection
- Synthesis and Characterization of Heterocyclic Compounds
- Nanoplatforms for cancer theranostics
- Enhanced Oil Recovery Techniques
- Crystallography and molecular interactions
- Catalysis and Hydrodesulfurization Studies
- Computational Drug Discovery Methods
- Liquid Crystal Research Advancements
- Polydiacetylene-based materials and applications
- Advanced NMR Techniques and Applications
- Analytical Chemistry and Chromatography
- Cancer, Lipids, and Metabolism
- Catalysts for Methane Reforming
- Antibiotics Pharmacokinetics and Efficacy
- Hemophilia Treatment and Research
- Photodynamic Therapy Research Studies
Kazan Federal University
2016-2025
Institute of Physics
2015-2025
Novo Nordisk (Denmark)
2025
Upgrading of heavy oil in supercritical water (SCW) was analyzed by a comprehensive analysis GC, GC–MS, NMR, and SEM–EDX with the aid electron paramagnetic resonance (EPR) as complementary technical analysis. The significant changes physical properties chemical compositions reveal effectiveness upgrading SCW. Especially, intensities conventional EPR signals from free radicals (FRs) vanadyl complexes (VO2+) SCW treatment were noticed, they explained, respectively, to understand sulfur removal...
ABSTRACT Here, we report a synthesis of fluoroquinolones carrying monoterpene moiety at the C7 position aromatic structure. The minimal inhibitory concentrations fluoroquinolone fused with trans ‐3‐hydroxy‐ cis ‐myrtanylamine 18 against Staphylococcus aureus (MSSA isolates) were two‐ to eightfold lower compared moxifloxacin, although fourfold higher MRSA isolates. (−)‐nopylamine 16 was four‐ less active on MSSA while had similar activity MRSA. Against biofilms, both and four times more than...
Nuclear magnetic resonance (NMR) approaches have unique advantages in the analysis of crude oil because they are non-destructive and provide information on chemical functional groups. Nevertheless, correctness effectiveness NMR techniques for determining saturates, aromatics, resins, asphaltenes (SARA analysis) without fractioning still not clear. In this work we compared measurements high-resolution 13C spectra B0 ≈ 16.5 T (NMR frequency 175 MHz) with results SARA four various heavy samples...
The aim of this work was to study the fractional composition super-viscous oil resins from Ashalcha field, as well catalytic aquathermolysis product in presence a cobalt-containing catalyst precursor and hydrogen donor. conducted at various durations thermal steam exposure. In regard, enabled identification distribution resin fractions. These fractions, obtained by liquid adsorption chromatography, were extracted with individual solvents their binary mixtures ratios. results MALDI...
Abstract In this study, bimetallic catalysts based on transition metals CuFe 2 O 4 , CoFe and NiFe are proposed for catalyzing aquathermolysis reaction during steam-based EOR method to improve in-situ heavy oil upgrading. All upgrading experiments were carried out under a nitrogen atmosphere 24 h in 300-ml batch Parr reactor at 250 300 °C high pressure 35 75 bar, respectively. To evaluate the catalytic performance of used, comprehensive studies changes physical chemical properties improved...
The synthesis of the title compounds was performed from (-)-cis-myrtanic and (-)-myrtenic acids. obtained were characterized using 1H- 13C-NMR, IR, high-resolution mass spectrometry. Despite presence quaternary ammonium moiety, both had moderate antimicrobial activity with a MIC 128 µg/mL on S. aureus 512 E. coli. antifungal low Candida isolates, while also comparable conventional antimycotic (Fluconazole) filamentous fungi. These data suggest that two bulky bicyclic terpene fragments...
The aim of this work was to study the mechanisms interaction between pravastatin and cell membranes using model (sodium dodecyl sulfate micelles) by nuclear magnetic resonance spectroscopy methods. On basis experiments, it established that can form intermolecular complexes with sodium micelles its hydrophilic groups polar surface micelle. Conformational features molecule were also studied. Copyright © 2014 John Wiley & Sons, Ltd.
Platelet aggregation causes various diseases and therefore challenges the development of novel antiaggregatory drugs. In this study, we report possible mechanism platelet suppression by newly synthesized myrtenol-derived monoterpenoids carrying different heteroatoms (sulphur, oxygen, or nitrogen). Despite all tested compounds suppressed in vitro, most significant effect was observed for S-containing compounds. The molecular docking confirmed putative interaction with platelet's P2Y12...
Application of high resolution 13C nuclear magnetic resonance (NMR) spectroscopy to characterize crude oil was demonstrated. The chemical shifts NMR functional groups that determine the composition sample were determined. Molar fractions primary, secondary, quaternary, tertiary, aromatic groups, factor and average hydrocarbon chain length aliphatic hydrocarbons according spectra Detailed description using a single consideration three spectra: 13C, Attached Proton Test (APT), with Gated...
The synthesis of new fluorescent probes, based on biocompatible luminophors and exhibiting various specificities, is intensively developed worldwide. Many contain a hydrophobic group that limits their application for cell staining under vital conditions. Herein, we report the two BODIPY molecules—BF2-meso-(4-butan/pentanamido-N-(((1S,5R)-6,6-dimethylbicyclo [3.1.1]hept-2-en-2-yl)methyl)-N,N-dimethylpropan-1-aminium)-3,3′,5,5′-tetramethyl-2,2′-dipyrromethene bromides—designed as 10, 11 with...
This paper presents the design and a comparative analysis of structural solvation factors on spectral biological properties BODIPY biomarker with thioterpene fragment. Covalent binding moiety to butanoic acid residue meso-substituted was carried out find membranotropic effect conjugate erythrocytes, assess possibilities its practical application in bioimaging. The molecular structure confirmed via X-ray, UV/vis-, NMR-, MS-spectra. It found that dye demonstrates high photostability...
Two pyridoxine derivatives containing a dinitrophenyl moiety were investigated by 1 H NMR spectroscopy. Conformational dynamics in solution studied for each compound using dynamic experiments. It was shown that both compounds are involved into two conformational exchange processes. The first process is transformation of the seven‐membered cycle conformation between enantiomeric P ‐twist and M forms, second rotation fragment molecules around C–O bond. Energy barriers transitions determined....
A series of pyridoxine derivatives was investigated by 1 H and 2D nuclear overhauser enhancement spectroscopy (NOESY) NMR. The free energies activation for the pyridyl‐oxygen rotation 2,4‐dinitrophenyl ether seven‐membered acetals were measured dynamic conformational exchange between chair twist forms acetal ring confirmed NMR STO3G computations. Copyright © 2014 John Wiley & Sons, Ltd.
Measurements of three light and one heavy crude oil samples were carried out by high-resolution nuclear magnetic resonance (NMR) spectroscopy methods. Quantitative fractions aromatic molecules functional groups constituting hydrocarbons determined, comparative analysis the different viscosity origin was done.