Soft nanosystems based on hydroxypiperidinium surfactants as adjuvants and micellar catalysts

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Mixed micellar systems of metal complexes of alkylated N-methyl-d-glucamines with hexadecyltrimethylammonium bromide

Russian Chemical Bulletin - The spectral, aggregation, and adsorption properties of amphiphilic metal complexes of alkylated N-methyl-D-glucamines and lanthanum nitrate and their mixture with...     

Catalytic Effect of Micellar Systems Based on Hydroxypiperidinium Surfactants in the Hydrolysis of a p-Nitrophenyl Phosphonate

Kinetics and Catalysis - The aggregation behavior, solubilization effect, and catalytic activity of hexadecylpiperidinium surfactants (including ones functionalized with hydroxyl substituents) have...     

Complex of 1-hexadecyl-4-aza-1-azoniabicyclo[2.2.2]octane bromide with copper dibromide: structure,aggregation, and biological activity

Russian Chemical Bulletin - The aggregation and adsorption properties of a new complex of 1-hexadecyl-4-aza-1-azoniabicyclo[2.2.2]octane bromide with copper dibromide were studied by methods of...     

Aggregation behavior of the surfactant bearing pyrrolidinium head group in the presence of polyacrylic acid

Russian Chemical Bulletin - The aggregation characteristics of binary systems based on a novel pyrrolidinium surfactant with the hexadecyl hydrocarbon tail and hydroxyethyl fragment at the nitrogen...     

Correction to: Complementary pairing of o-quinone methides with 3-(N,N-diethylamino)acrolein – synthesis of 1H-benzo[f]chromene-2-carbaldehydes

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Mixed systems based on the cationic surfactant with a butyl carbamate fragment and nonionic surfactant Tween 80: Aggregation behavior and solubilization properties

Mixed micelles are formed in the binary compositions based on the cationic surfactant functionalized by the butyl carbamate fragment and nonionic surfactant Tween 80 in aqueous solutions. The aggregation parameters of the formed micelles (critical micelle concentration, size, and surface potential) depend on the component ratio in the system. The solubilization effect of individual and mixed micelles on the drugs of the heterocyclic series, indomethacin and 1-[5-(4-chlorophenyl)-3-phenylpyrrol-2-yl)]benzimidazol-2(3H)-one, was quantitatively characterized.     

Supramolecular systems based on polyethyleneimines and octa-2-hydroxyethylated calix[4]resorcinarenes. Aggregation and catalytic activity

The aggregation of octa-2-hydroxyethylated calix[₄]resorcines (CR) with different alkyl chain length (R = Et, n-C₅H₁₁, n-C₁₁H₂₃), hydrophobically modified polyethyleneimine (HPEI) and their mixed systems was investigated by the tensiometry and dynamic light scattering in water and water-organic solvents at different temperatures. The critical aggregation concentration (CAC) and the size of aggregates were determined. It was established that the temperature affects significantly the surface and aggregation properties of the CR. The hydrolysis of 4-nitrophenyl-О-butylchloromethyl phosphonate was investigated in the presence of CR, HPEI, and their mixed systems by spectrophotometry. The parameters of the reaction (rate constant in the micellar phase, binding constant of the substrate with aggregates, and CAC) testify that the catalytic activity of the HPEI system in the presence of СR with undecyl radicals is the highest.