A5009143212- Luminescence Properties of Advanced Materials
- Solid-state spectroscopy and crystallography
- Inorganic Chemistry and Materials
- Optical and Acousto-Optic Technologies
- Estrogen and related hormone effects
- Molecular spectroscopy and chirality
- Crystallography and molecular interactions
- Advanced Chemical Physics Studies
- Semiconductor Quantum Structures and Devices
- Glutathione Transferases and Polymorphisms
- Redox biology and oxidative stress
- Metastasis and carcinoma case studies
- Chemical Reactions and Isotopes
- Cancer, Lipids, and Metabolism
- Molecular Spectroscopy and Structure
- Advanced Thermoelectric Materials and Devices
- Gout, Hyperuricemia, Uric Acid
- Optical Coatings and Gratings
- Photorefractive and Nonlinear Optics
- Electron Spin Resonance Studies
- Radiopharmaceutical Chemistry and Applications
- Therapeutic Uses of Natural Elements
- Vitamin D Research Studies
- Advancements in Photolithography Techniques
- Spectroscopy and Quantum Chemical Studies
V.E. Lashkaryov Institute of Semiconductor Physics
1998-2025
National Academy of Sciences of Ukraine
2000-2023
R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology
2018-2019
Cu2ZnSn(S,Se)4 (CZT(S,Se)) thin films exhibit the characteristics necessary to be effective absorbers in solar cells. In this report, room temperature experimental Raman scattering spectra, recorded at different excitation wavelengths, are systematically analyzed theoretically using results of DFT harmonic frequencies calculations Γ-point for various modifications kesterite (KS), stannite (ST), and pre-mixed Cu-Au (PMCA) crystal structures. The specific anharmonism‐induced features spectra...
Interaction between tumor cells and microenvironment is critical for homeostasis of normal growth. Tumor cell - stroma interaction represents the potent factor able to initiate cancer affect progression disease outcome. The tumors vary by their origin (proportion stromal cells, composition activation state). surgical stress may potentiate acute hepatic failure in patients with metastatic colorectal (mCRC). Pathological effect ischemia-reperfusion (I/R) consists increased generation...
The high incidence of recurrence and metastasizing in colorectal cancer (CRC) poses the challenge for improvement long-term treatment outcome.To determine major indicators redox-formative molecules tissue metastatic CRC (mCRC), stages Т2-4N0-2M0G2-3, namely rate superoxide radical (SR) generation, nitric oxide (NO) content, activity matrix metalloproteinases (MMP), lactoferrin (LF) "free" iron their association with some clinical pathological characteristics patients.mCRC samples from 51...
Summary. Aim: To determine the content of low-spin form cytochrome P450 in primary tumors and liver metastases patients with metastatic colorectal cancer (mCRC) assess its prognostic significance. Materials Methods: The levels oxidized forms tissues mCRC were studied by electron paramagnetic resonance. detect CYP 1A2 1B1 isoforms, Western blot analysis was used. activity metalloprotreinases gelatine zymography. Results: In adjacent to metastasis, are lower than samples conventionally normal...
Вступ.У жінок постменопаузального віку рівень циркулюючого естрогену у сироватці крові та тканині грудної залози знижений, але частота розвитку раку (РГЗ) залишається високою, що вказує на наявність інших чинників, зумовлюють його виникнення.До останніх можна віднести здатність метаболітів порушувати рівновагу в редокс-стані органів шляхом посилення генерування супероксидних радикалів, які виявляють як сигнальні, так і пошкоджуючі ефекти.Накопичилися дані щодо того, окиснювальний метаболізм...
To assess the inducible NO-synthase activity and total RNase in tissue samples blood neutrophils of patients with prostate intraepithelial neoplasia (PIN) cancer (PCa) different stages.NO level was measured tumor PIN PCa stages by electron paramagnetic resonance using spin traps technology. method zymography.We have found that NO levels were significantly higher than increased along disease progression. Analysis demonstrated values not dispersed did depend on stage disease. manifold as...
Summary. Aim: to investigate the levels of superoxide radical (SR) generation and matrix metalloproteinase activity in tumor adipose tissue adjacent tumour (ATA) depending on BMI menopausal status breast cancer patients. Object methods: samples ATA (postoperative material) from 70 women with were studied. The methods used EPR spectrometry, polyacrylamide gel zymography, general clinical statistical methods. Results: a significant difference (p < 0.05) rate SR at normal weight obesity was...
To study the levels of redox-forming molecules generated in tumor, adipose tissue (AT), neutrophils and platelets patients with colorectal cancer (CRC) normal body weight or obesity.83 samples tumor 83 AT taken at distance 5 cm from as well blood have been analyzed CRC metachronous lesions liver. The comparison group consisted 18 who were surgically treated for ulcer. rates free radical generation measured by electron paramagnetic resonance.Free rate increased nitrogen oxide (NO) decreased...
We present a new multilayer anti-reflective coating (ARC) optimization method. have developed software which allows the of ARC consisting up to 20 layers on any substrate with incident light integration over aperture lithography objectives and diffraction effects. The includes not only determination optimal layer parameters (i.e. optical constants n k, thickness d) for minimized back-to-resist reflection (R<sub>12</sub>) exposing but also appropriate intervals corresponding values smaller...
Un-doped and Ca-doped Eu <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> VO xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> La xmlns:xlink="http://www.w3.org/1999/xlink">l-x</sub> vanadate nanoparticles were synthesized by sol-gel method. Phase compositions, morphology luminescent characteristics of the samples investigated. The Ca-doping influences on structure luminescence spectra chromaticity all even at low concentrations....
We report the absorption spectra (at 10 K) for SbI<SUB>3</SUB> clusters with molecular numbers 1/2, 1 and 2 which were created in FAU-zeolite cages. At 2.0 - 3.7 eV there appear bands whose energies strongly depends of loading densities molecules. These are remarkable blue shifted compared one bulk exciton (2.615 eV). This shift is interpreted terms quantum size effect. The observed blue-shift coincides calculated m<SUB>h</SUB>/m<SUB>e</SUB>>>1 approximation (typical MI<SUB>3</SUB> layered crystals).
The presented results show that the spectrum of thermal radiation from a semiconductor plate whose opposite faces are parallel to each other demonstrates an oscillating character. This is due interference effects in Fabry-Perot resonator. features strongly depend not only on thickness, but also such parameters as plasma frequency (ωp) and damping coefficient (γp). electron-hole can be easily varied by photo-excitation, injection electrons or holes, techniques. So one hope study elements...
Abstract An erbium-doped β -GaLaS 3 crystal has been grown by the solution-melt method, and effect of γ -irradiation on their vibrational radiative properties investigated. Experiments have demonstrated that is transparent in near mid-infrared (IR) regions (transparency ∼62% range 350–7100 cm −1 ), which allows it to be used as an effective matrix for creating lasers this spectral range. For first time, spectrum density phonon states calculated using density-functional theory (DFT) method....
Introduction.Obesity is associated with chronic inflammation and colorectal cancer (CRC).In CRC liver metastases adjacent tissue defects are formed in the mitochondrial electron transport chain that causes dysfunction, activation of redox-molecules (superoxide anion (SR), NO) generation sources matrix metalloproteinases (MMP-2, MMP-9) activity.Radical oxygen species also take a part regulation xanthine/xanthine oxidase reaction.In human organs xanthine (XO) involved pathogenesis various...
Вступ. Дослідження вольт-амперних характеристик (ВАХ) та гальваномагнітних властивостей напівпровідникових матеріалів структур на їхній основі під дією НВЧ випромінювання магнітних полів у широкому діапазоні температур є актуальною задачею для розробки елементної бази спінтроніки надчутливих сенсорів.Проблематика. Наразі не існує прецизійного комплексу терморегульованої кріогенної апаратури низькотемпературних досліджень в полі зовнішнього магніта ВАХ основі, яка б повністю могла...