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    First coordination compounds of SeBr2 with selenium-containing ligands: X-ray structural determination / E. V. Abramova [et al.] // Mendeleev Commun. - 2016. - Vol. 26, Is. 6. - P. 532-534, DOI 10.1016/j.mencom.2016.11.025. - Cited References: 11 . - ISSN 0959-9436
   Перевод заглавия: Первые координационные соединения SeBr2 с селенсодержащими лигандами: Рентгеноструктурное решение структуры
Аннотация: The molecular structure of the coordination compounds of SeBr2 with 2,6-dichloro- and 2,6-dibromo-9-selenabicyclo[3.3.1]nonane ligands was determined by X-ray powder diffraction analysis. The complexes have a less dense packing in comparison with that in an isostructural complex of SeCl2 with 2,6-dichloro-9-selenabicyclo[3.3.1]nonane.

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Держатели документа:
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation
L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, Khabarovsk, Russian Federation

Доп.точки доступа:
Abramova, E. V.; Sterkhova, I. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Potapov, V. A.; Amosova, S. V.
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Influence of arabinogalactan-coated selenium nanoparticles on the formation of free radicals in Ehrlich ascites carcinoma cells / K. V. Shadrin, Yu. A. Yakovleva, O. V. Kryukova [et al.] // BioNanoScience. - 2024. - Vol. 14, Is. 1. - P. 268-275, DOI 10.1007/s12668-023-01251-6. - Cited References: 40 . - ISSN 2191-1630. - ISSN 2191-1649
Кл.слова (ненормированные):
Selenium -- Nanoparticles -- Microwave radiation -- Antioxidant properties -- Ehrlich ascitic carcinoma
Аннотация: The antioxidant properties of selenium nanoparticles coated with arabinogalactan have been studied. The nanoparticles were characterized by transmission electron microscopy and infrared spectroscopy. Arabinogalactan-coated selenium nanoparticles were incubated together with Ehrlich ascitic carcinoma cells and then exposed to microwave radiation. The antioxidant properties of selenium nanoparticles were evaluated using chemiluminescent analysis. The viability of Ehrlich ascitic carcinoma cells under microwave irradiation and incubation with selenium nanoparticles was assessed by flow cytometry. Under conditions of exposure to experimental tumor cells of microwave radiation, the concentration of free radicals in the cells did not change. The effect of arabinogalactan-coated selenium nanoparticles on tumor cells is expressed as an increase in the delay time for the activation of the antioxidant system.

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Держатели документа:
Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, P. Zeleznyak street, 1, 660022, Krasnoyarsk, Russia
Krasnoyarsk Science Center, Federal Research Center KSC SB RAS, Akademgorodok 50, 660036, Krasnoyarsk, Russia
Siberian Federal University, Svobodny, 79, 660041, Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, bld. 38, 660036, Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Shadrin, K. V.; Yakovleva, Yu. A.; Kryukova, O. V.; Makarskaya, G. V.; Tarskikh, S. V.; Pyankov, V. F.; Pakhomova, V. G.; Gerasimova, Yu. V.; Герасимова, Юлия Валентиновна; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Vorobyev, S. A.; Stolyar, S. V.; Столяр, Сергей Викторович
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Application of the luminous bacterium Photobacterium phosphoreum for toxicity monitoring of selenite and its reduction to selenium(0) nanoparticles / A. V. Zenkov, E. S. Sushko, O. A. Mogilnaya [et al.] // Spectrochim. Acta - A: Mol. Biomol. Spectrosc. - 2025. - Vol. 325. - Ст. 125078, DOI 10.1016/j.saa.2024.125078. - Cited References: 63. - This research was funded by the Russian Science Foundation and Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, grant No. 24-24-20001. - We acknowledge A.V. Raikov (School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia) for spectral measurements; Dr. A.B. Sarangova (School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russia) for methodology of bacterial cultivation; Y.V. Chugaeva (Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 660036 Krasnoyarsk, Russia) for support of the collection of bacteria and their cultivation. The SEM and TEM studies were performed in Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" . - ISSN 1386-1425. - ISSN 1873-3557
Кл.слова (ненормированные):
Luminous marine bacteria -- Sodium selenite -- Toxicity -- Reactive oxygen species -- Biotransformation -- Selenium nanoparticles
Аннотация: Luminous marine bacteria are traditionally used as a bioassay due to the convenience and high rate of registering the intensity of their physiological function – luminescence. This study aimed to develop the application of Photobacterium phosphoreum in traditional and novel fields – toxicity monitoring and biotechnology. We demonstrated (1) effects of selenite ions on bioluminescence, and (2) biotransformation of selenite to selenium(0) in the form of nanoparticles. The effects of selenite (SeO32−) on the intensity of bacterial bioluminescence were studied, and its dependencies on exposure time and concentration of Na2SeO3 were analyzed. Bioluminescence activation and inhibition were revealed; dose–effect dependencies corresponded to the hormesis model. The toxicity of SeO32− was characterized by an effective concentration of 10−3 M. Effects of SeO32− on reactive oxygen species (ROS) in bacterial suspensions were studied. High positive correlations were found between the bioluminescence intensity and ROS content, which indicates the decisive role of ROS and associated redox processes in the bioeffects of selenite ions. Scanning and transmission electron microscopy revealed the presence of nano-structures in the bacteria exposed to selenite. The energy dispersion spectrum detected a high content of selenium in the nanoparticles. The particle size distribution depended on Na2SeO3 concentration; maxima of the distribution varied within 45–55 nm.

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Держатели документа:
School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia
Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia
Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Federal Scientific Center of the Russian Academy of Sciences, 410049 Saratov, Russia

Доп.точки доступа:
Zenkov, A. V.; Sushko, E. S.; Сушко, Екатерина Сергеевна; Mogilnaya, O. A.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Kamnev, A. A.; Tugarova, A. V.; Kudryasheva, N. S.
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