A5034331688- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced biosensing and bioanalysis techniques
- Quantum Dots Synthesis And Properties
- DNA and Nucleic Acid Chemistry
- Diverse Scientific Research in Ukraine
- Chalcogenide Semiconductor Thin Films
- Nanocluster Synthesis and Applications
- X-ray Diffraction in Crystallography
- thermodynamics and calorimetric analyses
- Metal-Organic Frameworks: Synthesis and Applications
- Agriculture and Biological Studies
- Polyoxometalates: Synthesis and Applications
- Crystallization and Solubility Studies
- Electrochemical Analysis and Applications
- Geotechnical and Geomechanical Engineering
- Advanced Nanomaterials in Catalysis
- Mass Spectrometry Techniques and Applications
- Coal Properties and Utilization
- Bee Products Chemical Analysis
- Advanced ceramic materials synthesis
- Protein Interaction Studies and Fluorescence Analysis
- Synthesis and Characterization of Heterocyclic Compounds
- Spectroscopy Techniques in Biomedical and Chemical Research
- Perovskite Materials and Applications
- Machine Learning in Materials Science
Vasyl' Stus Donetsk National University
2015-2023
Joint Institute for Nuclear Research
2016-2022
Dubna State University
2019
Institute for Nuclear Research
2018
The present study was aimed at revealing the influence of mechanical stress induced by water molecule adsorption on composition crystalline phases in ZrO2 + 3 mol% Y2O3-nanoparticles. Three basic methods were used to determine phase transition: neutron diffraction, Raman microspectroscopic scanning, and X-ray diffraction. fact reversible phase-structural β → α transformation simultaneous presence two polymorphic structural modifications (β is tetragonal syngony monoclinic nanosized particles...
Surface-enhanced Raman spectroscopy (SERS) is a promising optical method for analyzing molecular samples of various nature. Most SERS studies are an applied nature, indicating serious potential their application in analytical practice. Dendritelike nanostructures have great SERS, but the lack predictable production significantly limits implementation. In this paper, controllably obtaining spatially separated, self-organized, and highly-branched silver dendrites via template synthesis pores...
The development of modern bio-nanoelectronic technologies requires new hybrid organo-inorganic systems that have a specific functional purpose and allow work in the tissues living organisms. practical realization scientific study two-component system form DNA molecule fragments nanoparticles biocompatible ceramics was goal this work. interaction with solid solution composition ZrO2–3mol% Y2O3 (YSZ) studied using Raman scattering transmission electron microscopy. Samples YSZ oxide hydroxide...
Silver particles, predominantly with the size of 40–80 nm, were immersion deposited onto porous silicon to form substrates appropriate for detection organic molecules by surface-enhanced Raman scattering technique. These have been demonstrated first time provide phospholipid represented dipalmitoylphosphatidylcholine at concentrations as low 10−12 M when a 532 nm laser wavelength is used and 10−11 633 wavelength. Label-free realized these conditions.
Here we report the SERS spectroscopy study of herring sperm DNA adsorbed on silvered porous silicon. Porous silicon has been fabricated by an electrochemical anodic etching a highly doped n‐type wafer. It shown that following silver immersion deposition lead to formation layer nano‐ and microparticles assembled in quasi‐ordered array. Reflectance revealed demonstrates surface plasmon resonance band expanded near‐IR range. Preliminary measurements with rhodamine 6G have showed is...
Serial crystallography at last generation X-ray synchrotron sources and free electron lasers enabled data collection with micrometer even submicrometer size crystals, which have resulted in amazing progress structural biology. However, imaging of small although is highly demanded, remains a challenge, especially the case membrane protein crystals. Here we describe new extremely sensitive method crystals that based on coherent anti-Stokes Raman scattering.
A variational analysis of dispersion medium (electrolytes and surfactants) was carried out for the best nucleotide interactions with presence nanoparticles ability to formation homogeneous coatings upon drying / lyophilization. Using UV-spectroscopy transmission electron microscopy, processes immobilization nucleotides on surface nanoparti-cles composition ZrO2-3mol% Y2O3 (YSZ) in various dispersing agents were investigated. Promising established, optimal suspen-sions based DNA YSZ...
Здійснено оцінку господарсько-біологічних показ-ників нових ізолятів гриба P. ostreatus за умов ін-тенсивного культивування на твердому вуглецево-му субстраті – лушпинні соняшника, як найбільшрозповсюдженому в Україні. Встановлено, що всікультури ґливи звичайної здатні утворювати пло-дові тіла без температурного шоку і додатковоговпливу зовнішніх факторів. Виявлено морфобіоло-гічні особливості ostreatus,а саме: розміром та кількістю плодових тіл ізростків, формою шапинки. Зроблено...
Surface-enhanced Raman scattering is a powerful method used in chemoand biosensorics. The aim of this work was to determine the relationship between signal and shape silver nanostructures under influence laser radiation with different power. Plasmonic were synthesized silicon dioxide pores on monocrystalline n-type substrate. formed using ion-track technology selective chemical etching. Silver deposition carried out by galvanic displacement method. Synthesis time chosen as parameter that...
The conditions necessary for formation of hexakis(dimethylsulfoxide-O)–cobalt(II) hexatungstate [Co(C2H6OS)6][W6O19] in Co(NO3)2-–Na2WO4–HCl–H2O–DMSO solution, acidified up to , were established. synthesized salt was examined using chemical analysis, X-ray single crystal FT-IR and Raman spectroscopy, scanning electron microscopy. By single-crystal analysis main crystallographic characteristics revealed: triclinic, C2/c, a = 16.3318(9) Å, b 14.9160(5) c 17.8291(10) β 112.104(6)°, V 4024.1(3)...
A variational analysis of dispersion medium (electrolytes and surfactants) was carried out for the best nucleotide interactions with presence nanoparticles ability to formation homogeneous coatings upon drying / lyophilization. Using UV-spectroscopy transmission electron microscopy, processes immobilization nucleotides on surface nanoparti-cles composition ZrO2-3mol% Y2O3 (YSZ) in various dispersing agents were investigated. Promising established, optimal suspen-sions based DNA YSZ...
Abstract Neutron activation analysis of the Pleurotus ostreatus showed that adding solid solution ZrO 2 -Y O 3 hydroxide and oxide (3 mol % Y ) nanoparticles size 4 9 nm at a concentration 0.2 weight percent in nutrient medium (Czapek) alters character physiological processes biological tissues mushrooms. This is manifested form significant change morphological characteristics mushrooms elemental composition dry biomass. In particular, it shown intercalation into leads to an increase 1.3-1.4...
У роботі проведено додаткову оцінку нових ізоля-тів гриба P. ostreatus за допомогою електрофоре-зу. Виявлено, що здатність продукувати вКР позаклітинні білки з різною відносною елект-рофоретичною рухливістю є відповідною реакцієюна вуглецьвмісні речовини живильного середовища.Встановлено зв'язок між кількістю білкових зон наЕФС ліофілятів КР після культивування на сусло-вому середовищі та здатністю накопичува-ти біомасу поверхневого нарідкому суслі і його урожайністю лушпиннісоняшника, який...
Зроблено попередню оцінку ізолятів грибаP. ostreatus за допомогою інфрачервоної (ІЧ) спек-троскопії позаклітинних білків. Встановлено, щосмуги поглинання при 3350, 2920, 1410, 1300–1000,925–850 и 690–600 см-1 можуть свідчити про на-явність у структурі різних функціональних груп.Дані ІЧ-спектроскопії вказують, що оптичнащільність смуг (Е) біл-ків характеризується різною інтенсивністю, щопов’язано з фізіологічними особливостями вивче-них гриба. Показано, в якості додат-кової оцінки нових ґливи...
Silver dendrites and nanoparticles demonstrating activity in surface enhanced Raman scattering grown via immersion deposition on structured Si were found to detect DTNB adsorbed from its 10−16 10−12 M solutions the Ag surfaces respectively.
Even after more than four decades of rapid-pace advances, the adoption Surface-Enhanced Raman Scattering (SERS) remains limited, due to difficulties in fabrication effective and affordable nanostructured surfaces or templates. From this point-of-view, self-assembly techniques SERS substrates formation allowing highly branched dendritic silver nanostructures, which are very promising for biosensor applications. However, these suffer from lack control over resulting structures. Herein, we...
A rapid progress in the development of solar cells based on hybrid organic-inorganic perovskites CH3NH3PbI3 (MAPbI3) is observed recent years, and power conversion efficiency as high 22.1 % has been reported. However, a low stability main drawback these materials, which impedes their practical use for energy conversion. This work devoted to synthesis films from CH3NH3I PbI2 precursors spectroscopic investigation under high-intensity laser illumination.
A variational analysis of dispersion medium (electrolytes and surfactants) was carried out for the best nucleotide interactions with presence nanoparticles ability to formation homogeneous coatings upon drying / lyophilization. Using UV-spectroscopy transmission electron microscopy, processes immobilization nucleotides on surface composition ZrO2-3mol% Y2O3 (YSZ) in various dispersing agents were investigated. Promising established, optimal suspensions based DNA YSZ nanoparticles, which is...