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Registration Number

0221U103046, 0119U100272 , R & D reports

Title

Controlled functionalization of carbon and inorganic nanomaterials and physico-chemistry of supramolecular systems and composites on their basis

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Head

Kartel Mykola T., Доктор хімічних наук

Registration Date

13-02-2021

Organization

Chuiko Institute of Surface Chemistry of NAS of Ukraine

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 Complexation of aromatic amino acids of similar structure (L phenylalanine and L-tyrosine) with - and β cyclodextrins in aqueous buffer solutions with pH 1.00 and 6.86 was studied. The stability constants of inclusion complexes are determined, and the main thermodynamic parameters of their formation are calculated. It has been established that cationic and zwitterionic forms of amino acids form 1: 1 host-guest inclusion complexes with - and β cyclodextrins. When complexed with aromatic amino acids, β cyclodextrin has clear advantages over -cyclodextrin due to the geometric correspondence of the dimensions of its internal hydrophobic cavity and amino acid molecules. The adsorption interaction of titanium dioxide surface groups with amino acids containing additional carboxyl groups - asparagine and glutamine - was studied. From aqueous solutions, these compounds have been found to be sorbed on the surface of titanium dioxide to form surface complexes in which amino acid anions bind to protonated functional groups by electrostatic bonds.

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Azizova Liana R
Belyakova Lyudmila O.
Bakalinska Olga M.
Brichka Alla V.
Vlasova Nataliia M.
Voitko Kateryna V.
Halysh Vita V.
Dzyazko Maryna O.
Zhuravsky Sergiy V
Kalenyuk Ganna O.
Kuksenko Serhii P.
Kulyk Tetyana V
Kuts Volodymyr S.
Lyashenko Diana Yu.
Markitan Olga V.
Nikolaichuk Alina A.
Nazarchuk Mykola O.
Nasedkin Dmytro B.
Nastasienko Natalia S
Palyanitsya Borys B.
Plyuto Yuri V.
Roik Nadiya V.
Sementsov Yuriy I.
Tarasenko Yuriy O.
Trofymenko Svitlana I.
Trofymchuk Iryna M.
Ushakova Lyudmyla M.
Chernyuk Oksana A
Sharanda Larysa F.
Shevchuk Olena M.

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2021-02-13