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Information × Registration Number 0222U001952, 0119U002207 , R & D reports Title Multifunctional materials clinoptilolite-transition metals in chemical analysis and biology popup.stage_title Head Kalychak Yaroslav Mykhaylovych, Доктор хімічних наук Registration Date 04-02-2022 Organization Ivan Franko National University of Lviv popup.description2 The techniques of preconcentration, separation and determination of trace amounts of REE (Gd(III), Pr(III), Lu(III), Ce(III), Yb(III), Y(III)) and Pb(II) in the water, technological solutions, and biosubstrates, which are based on the methods of solid-phase extraction, luminescence, spectrophotometry, voltammetry, atomic absorption using various forms of Transcarpathian clinoptilolite were developed. The regularities of REE sorption established by us on different forms of Transcarpathian clinoptilolite made it possible to develop methods of selective preconcentration and subsequent determination of Gd, Pr, Lu, Yb, Ce and Y. The conditions for the separation of Gd and Tb, which belong to the yttrium group, were found. Voltammetric methods for the determination of the antibiotic amoxicillin and alkaloids (platyphylline, anabasine, nefopam and its metabolite - N-oxide) were developed. The technique of the Nefopam determination was used to the analyze Nefopam solution for injection and human urine samples. A method of spectrophotometric determination of amoxicillin is proposed. The antimicrobial properties of particles of clinoptilolite – Ag(Mn,Cu,Co) compositions were studied. In particular, it was found that the clinoptilolite- Ag++Co2+ composition has a significant antimicrobial effect on E.coli cells compared to microparticles of clinoptilolite or a composition in which only Co2+ ions are present. However, this effect is much weaker than the action of the composition clinoptilolite-Ag+. Also, clinoptilolite- Ag++Co2+ significantly reduces the growth of the yeast C. albicans, but not more than the composition of clinoptilolite-Co2+ and much weaker than clinoptilolite-Ag+. Clinoptilolite- Ag++Co2+ has a moderate effect on the viability of S.aureus cells, similar to the action of clinoptilolite-Ag + or clinoptilolite-Ag++Co2+. Various nanostructured compositions "clinoptilolite-transition metals" were studied to detect antitumor and antimicrobial effects. Product Description popup.authors Bagday Svitlana R. Blazheyevskiy Mykola Ye. Vasylechko Volodymyr O. Voloshinovskii Anatiliy S. Gamernyk Roman V. Gloskovska Natalia V Gryshchouk Galyna V. Gromyko Oleksandr M. Dubenska Liliya O. Kit Mariya Ya. Kalychak Yaroslav М. Klyuchivska Olga Yu. Korkuna Olga Ya. Kostiv Oksana I. Lytvyn Roman Z. Oleksiv Lesia V. Stashkiv Olha Dmytrivna Stechynska Emiliya T. Stoika Rostyslav S. Tupys Andriy M. popup.nrat_date 2022-03-09 Close