The use of mechanochemical activation of metal powders and their mixtures in planetary mills opens wide prospects for the creation of new nanocomposite materials. Mechanochemical synthesis provides the possibility of obtaining a uniform distribution of the dispersed phase, of expanding the solubility limits of elements, of reducing the grain size to the nanoscale, and of obtaining new...
Quantum-chemical calculations (by DFT method in B3LYP/cc-pVTZ approximation) of optimal structure and vibrational spectra of water and methanol clusters in different media were carried out using Gaussian 09 software. Water clusters consisting of from one to six molecules in vacuum, water and argon media were considered. By comparison of the calculated IR absorption spectra of clusters in...
The heterostructures of $\text{Cr}_{1}\text{Ag}_{45}\text{TiO}_{2}$, $\text{Cr}_{1.2}\text{Cu}_{40}\text{TiO}_{7}$, and $\text{Cr}_{1.2}\text{Cu}_{43}$, prepared by chemical vapour deposition method were investigated using ellipsometric measurement method in order to calculate optical constants by two models namely Tautz-Lorentz and the effective medium model at the vicinity of the principal...
The potential of Zinc oxide (ZnO) nanophosphor material as a host for optoelectronic applications was investigated in this study. ZnO nanoparticles were synthesized using the co-precipitation method, followed by sintering at a maximum temperature of 700°C in air. The sintering process was carried out in a custom-made temperature-controlled muffle furnace with a precision of ±1°C, reaching a...
The Heavy Atom Effect on Spectro-Optical Properties of Pi-electron Containing Molecular Complex Based on Tryptanthrin
Nazarii V. Tkach, Vladislav Yu. Kudrya, Antonina P. Naumenko
Faculty of Physics, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrs’ka str., 01601 Kyiv, Ukraine
Tryptanthrin is a naturally occurring indoloquinazoline alkaloid...
The study of the interaction of nanoparticles and complexes with phospholipid membranes is an important stage of research, since they can be of potential importance for biological applications. Phospholipid membranes serve as an important model for studying the reaction to the introduction of the objects under study, as they are characterized by their simplified structure.
In our study, we...
