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Registration Number

0224U002054, 0123U101228 , R & D reports

Title

Composite systems based on synthetic and natural dispersed and porous materials functionalized with organic and inorganic compounds

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Head

Hunko Volodymyr M., д.х.н.

Registration Date

05-02-2024

Organization

Chuiko Institute of Surface Chemistry of NAS of Ukraine

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The synthesis of materials using layering, sol-gel and template synthesis, as well as adsorption, chemical, polymerization and geometric surface modification was carried out. It has been shown that for different adsorbents and probe adsorbates, there are several factors that affect the accuracy and reliability of the results obtained from the analysis of adsorption isotherms and other related morphological, textural, and structural data. The results of the study show that the adsorption of such compounds as rivanol, proflavine, doxorubicin, levofloxacin, furacilin, and salicylic acid is characterized by rather high values of the maximum adsorption and stability constants of the formed surface complexes. The determining driving force for the adsorption of the studied compounds on the lignin surface is the electrostatic interaction with the subsequent realization of additional interactions that can stabilize the formed surface complexes. It was found that in premicellar solutions of long-chain ethonium, in contrast to short-chain decamethoxine, the solubility of curcumin increases 150-fold due to the formation of soluble supramolecular complexes of its keto-tautomer with ethonium cations. In aqueous solution, the curcumin keto-tautomer exists mainly in the anti-configuration, which turns into the syn-configuration due to the formation of a more stable complex with ethonium. Experimental studies and theoretical modeling of the phenomena at the interfaces of different phases have been performed.

Product Description

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Andryiko Lyudmyla S.
Golovkova Lyudmyla P.
Guzenko Nataliya V.
Kazakova Olga O.
Matkovskyi Oleksandr К.
Nychyporuk Yuriy M.
Nosach Lyudmyla V.
Paentko Victoriya V.
Pachlov Evgen M.

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2024-02-05