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  1. No Access

    Article

    In Vitro Cell Selection of Sugar Beet for Resistance to Culture Filtrate of the Fungus Fusarium oxysporum

    A multistep in vitro cell selection was carried out on a well-proliferating callus tissue of sugar beet capable of morphogenesis. A 20-day culture filtrate of the fungus Fusarium oxysporum was used as a selective...

    R. S. Yerzhebayeva, A. M. Abekova, G. H. Bersimbaeva… in Cytology and Genetics (2019)

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    Article

    pH-Sensitive Supramolecular Assemblies of β-Cyclodextrin and 2-Aminodiphenylamine in Water Medium: Structure, Solubility and Stability

    The influence of β-cyclodextrin on the solubility, protolytic properties, and complex formation behavior of 2-aminodiphenylamine was studied using UV spectroscopy. In accordance with the results of the spectro...

    N. V. Roik, L. A. Belyakova in Journal of Solution Chemistry (2016)

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    Article

    Bifunctional mesoporous silicas with clearly distinguished localization of grafted groups

    Bifunctional mesoporous silicas with clearly distinguished localization of grafted groups on the surface of particles and inside their pores were obtained by means of sol-gel synthesis with postsynthetic vapor...

    N. V. Roik, L. A. Belyakova in Russian Journal of Physical Chemistry A (2013)

  4. No Access

    Article

    β-Cyclodextrin–para-aminosalicylic acid inclusion complexes

    Complex formation of β-cyclodextrin with para-aminosalicylic acid in buffer solutions is studied by UV spectroscopy. It is found that the stoichiometric proportion of the components in the β-cyclodextrin–para-...

    N. V. Roik, L. A. Belyakova, E. I. Oranskaya in Journal of Applied Spectroscopy (2010)

  5. No Access

    Article

    Influence of β-cyclodextrin on the protolytic and complexing ability of p-aminobenzoic acid

    UV spectroscopy was used to study the protolytic properties and determine the ionization constants of p-aminobenzoic acid in the presence of β-cyclodextrin. Formation of supramolecular structures of 1: 1 composit...

    N. V. Roik, L. A. Belyakova in Russian Journal of Physical Chemistry A (2010)

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    Article

    Surface structure and adsorption properties of multiwalled carbon nanotubes

    The pore structure, sorption parameters, and chemical composition of the surface of multiwalled carbon nanotubes synthesized by catalytic pyrolysis were determined. The dependences of the amount of cholic acid...

    S. Ya. Brichka, L. A. Belyakova, G. P. Prikhod’ko, N. V. Roik in Russian Chemical Bulletin (2006)

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    Article

    Adsorption of cholic acid on surface of organosilicas containing chemically bound quaternary ammonium groups

    It was found that silica modified with quaternary ammonium groups exhibits higher adsorption properties than cholesteramine, a sequestering adsorbent used in medicine for regulating the level of cholic acids i...

    N. V. Roik, L. A. Belyakova in Russian Journal of Physical Chemistry (2006)