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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Черемискина, Елена Владимировна, Столяр, Сергей Викторович, Чеканова, Лидия Александровна, Ярославцев, Роман Николаевич, Исхаков, Рауф Садыкович
Заглавие : Структура и магнитные свойства кобальт-никелевых покрытий, полученных с использованием арабиногалактана
Коллективы : "Новое в магнетизме и магнитных материалах", международная конференция, Научный совет по физике конденсированных сред РАН, МИРЭА - Российский технологический университет, Московский государственный университет им. М.В. Ломоносова, Магнитное общество России
Место публикации : Новое в магнетизме и магнитных материалах: сборник трудов XXIV международной конференции/ прогр. ком.: Р. С. Исхаков, С. Г. Овчинников [и др.]. - 2021. - Секция 9: Магнитные пленки. - Ст.9-86-89
Примечания : Библиогр.: 5
Аннотация: Получены покрытия 3-d металлов из растворов солей в присутствии природного полисахарида арабиногалактана. Рассчитанные постоянные атомной решетки регистрируемых ГЦК и ГПУ структур соответствуют значениям характерным для сплава Co1-xNix, что свидетельствует об отсутствии твердого раствора металл-углерод.The coatings of 3-d metals were obtained from salt solutions in the presence of the natural polysaccharide arabinogalactan. The calculated atomic lattice constants of the detected fcc and hcp structures correspond to the values characteristic of the Co1-xNix alloy, which indicates the absence of a metal-carbon solid solution.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kazachenko, Aleksandr S., Tomilin F. N., Pozdnyakova, Anastasia A., Vasilyeva, Natalia Yu, Malyar, Yuriy N., Kuznetsova, Svetlana A., Avramov P. V.
Заглавие : Theoretical DFT interpretation of infrared spectra of biologically active arabinogalactan sulphated derivatives
Коллективы : RFBRRussian Foundation for Basic Research (RFBR); government of Krasnoyarsk region [18-43-242003]; Russian Ministry of Science and EducationMinistry of Education and Science, Russian Federation [FSWM-2020-0033]
Место публикации : Chem. Pap. - 2020. - Vol. 74, Is. 11. - P.4103-4113. - ISSN 2585-7290, DOI 10.1007/s11696-020-01220-3. - ISSN 1336-9075(eISSN)
Примечания : Cited References: 52. - The reported work was funded by RFBR and the government of Krasnoyarsk region according to the research project. 18-43-242003. The study was carried out using equipment of the Krasnoyarsk Regional Center of Research Equipment, Federal Research Center "Krasnoyarsk Science Center SB RAS". Publication was also partially supported by Project FSWM-2020-0033 of Russian Ministry of Science and Education.The authors are grateful to I.V. Korolkova for IR-spectra.
Предметные рубрики: DENSITY-FUNCTIONAL THEORIES
ASTRAGALUS POLYSACCHARIDE
ANTICOAGULANT
Аннотация: Arabinogalactan (AG) and sulphated arabinogalactans which are products of chemical modification of arabinogalactan polysaccharide with anticoagulant properties were studied by experimental infrared (IR) spectroscopy combined with density functional theory simulations. Mutual analysis of experimental and theoretical IR frequencies indicates that the discrepancies between experiment and theory is caused by the influence of –OH groups, which led to the energy shift and broadening of the absorption IR bands. It was found that theoretical and experimental spectra correspond well within the 3000–4000 cm−1 spectral region. Addition of sulphur group in AG structure causes hydroxyl group to become accessible for further sulphation. The difference between experimental and theoretical IR frequencies of sulphated AG derivatives is greater than that of the parent arabinogalactan due to the increase in the number of possible isomers and conformers.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kuznetsov B. N., Vasil'eva N. Yu., Levdansky A. V., Karacharov A. A., Krylov A. S., Mazurova E. V., Bondarenko G. N., Levdansky V. A., Kazachenko A. S.
Заглавие : The Raman spectroscopy, XRD, SEM, and AFM study of arabinogalactan sulfates obtained using sulfamic acid
Место публикации : Russ. J. Bioorgan. Chem. - 2017. - Vol. 43, No. 7. - P.32-36. - ISSN 1068-1620, DOI 10.1134/S106816201707010X
Примечания : Cited References: 9. - The work was financially supported by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk krai (project no. 16-43-242083).
Ключевые слова (''Своб.индексиров.''): physicochemical investigation--sulfated arabinogalactan--«green» synthesis--sulfamic acid--urea
Аннотация: The structure of sodium salts of sulfated arabinogalactan (AG), obtained by sulfation of larch wood AG with sulfamic acid – urea mixture in the medium of 1,4-dioxane was investigated with the use of Raman spectroscopy, X-ray diffraction (XRD), scaning electron microscopy (SEM) and aromatic force microscopy (AFM) methods. The introduction of sulfate groups into the structure of AG was confirmed by appearance in Raman spectra new absorption bands characteristic for the deformation vibrations of d (SO3) at 420 cm-1 and d (O=S=O) at 588 cm-1, stretching vibrations n (C–O–S) at 822 cm-1, symmetric stretching vibrations ns (O=S=O) at 1076 cm-1, asymmetric stretching vibrations nas (О=S=O) at 1269 cm-1. According to XRD data the amorphization of arabinogalactan structure take place during it`s sulfation. The difference in the morphology of initial and sulfated arabinogalactans was established by SEM method. Initial arabinigalactan consists of particles of globular shape with size of 10–90 µm, but sulfates of AG – from particles of different shapes and sizes of 1–8 µm. According to AFM data the surface of film of arabinogalactan sulfates is formed by the rather homogeneous spherical particles with sizes near 70 nm. The mean-square value of the surface rounghness is equal to 33 nm.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Chekanova L. A., Cheremiskina E. V., Yaroslavtsev R. N., Taran O. P., Borovkova V. S., Malyar Y. N., Neznakhin D. S., Komogortsev S. V.
Заглавие : Synthesis of transition metal coatings using arabinogalactan
Место публикации : Bull. Russ. Acad. Sci. Phys. - 2022. - Vol. 86, Is. 5. - P.597-600. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873822050264
Примечания : Cited References: 19. - The study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, and the Krasnoyarsk Regional Science Foundation (project no. 20-43-240003)
Аннотация: Carbon-containing transition metal (Fe, Co, Ni) coatings are synthesized via chemical deposition with arabinogalactan. The crystal structure and chemical composition of the coatings are determined. Data from magnetometry and X-ray diffraction show that carbon is not included in the crystal lattice of a metal. Instead, it exists in the form of graphite inclusions. Degradation of arabinogalactan in an alkaline medium on the surface of a galvanic pair is investigated.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Chekanova L. A., Yaroslavtsev R. N., Stolyar S. V., Iskhakov R. S.
Заглавие : Synthesis of metal coatings using arabinogalactan and their magnetic properties
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2017): 1-7 July 2017 : book of abstracts. - 2017. - Ст.2PO-K-44. - P.317
Примечания : Cited References: 2. - The research was carried out with the support of the regional state autonomous institution "Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity" within the framework of participation in the event: Moscow International Symposium on Magnetism. This work was supported by the Russian Foundation for Basic Research, Grants № 16-03-00256, 16-03-00969. Support by the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation is acknowledged
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zamay T. N., Starkov A. K., Kolovskaya O. S., Zamay G. S., Veprintsev D. V., Luzan N., Nikolaeva E. D., Lukyanenko K. A., Artyushenko P. V., Shchugoreva I. A., Glazyrin Y. E., Koshmanova A. A., Krat A. V., Tereshina D. S., Zamay S. S., Pats Y. S., Zukov R. A., Tomilin F. N., Berezovski M. V., Kichkailo A. S.
Заглавие : Nucleic acid aptamers increase the anticancer efficiency and reduce the toxicity of cisplatin-arabinogalactan conjugates in vivo
Место публикации : Nucleic Acid Ther. - 2022. - Vol. 32, Is. 6. - P.497-506. - ISSN 21593337 (ISSN), DOI 10.1089/nat.2022.0024. - ISSN 21593345 (eISSN)
Примечания : Cited References: 42
Аннотация: Cisplatin is an effective drug for treating various cancer types. However, it is highly toxic for both healthy and tumor cells. Therefore, there is a need to reduce its therapeutic dose and increase targeted bioavailability. One of the ways to achieve this could be the coating of cisplatin with polysaccharides and specific carriers for targeted delivery. Nucleic acid aptamers could be used as carriers for the specific delivery of medicine to cancer cells. Cisplatin-arabinogalactan-aptamer (Cis-AG-Ap) conjugate was synthesized based on Cis-dichlorodiammineplatinum, Siberian larch arabinogalactan, and aptamer AS-42 specific to heat-shock proteins (HSP) 71?kDa (Hspa8) and HSP 90-beta (Hsp90ab1). The antitumor effect was estimated using ascites and metastatic Ehrlich tumor models. Cis-AG-Ap toxicity was assessed by blood biochemistry on healthy mice. Here, we demonstrated enhanced anticancer activity of Cis-AG-Ap and its specific accumulation in tumor foci. It was shown that targeted delivery allowed a 15-fold reduction in the therapeutic dose of cisplatin and its toxicity. Cis-AG-Ap sufficiently suppressed the growth of Ehrlich's ascites carcinoma, the mass and extent of tumor metastasis in vivo. Arabinogalactan and the aptamers promoted cisplatin efficiency by enhancing its bioavailability. The described strategy could be very promising for targeted anticancer therapy.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Chekanova L. A., Denisova E. A., Komogortsev S. V., Iskhakov R. S., Nemtsev I. V., Volochaev M. N.
Заглавие : Nanocomposite FeCo films based on arabinogalactan: synthesis and magnetic properties
Коллективы : Российская академия наук, Уральское отделение РАН, Институт физики металлов им. М. Н. Михеева Уральского отделения РАН, Уральский федеральный университет им. первого Президента России Б.Н. Ельцина, Российский фонд фундаментальных исследований, Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : Euro-asian symposium "Trends in magnetism" (EASTMAG-2019): Book of abstracts/ чл. конс. ком.: S. G. Ovchinnikov, N. V. Volkov [et al.] ; чл. прогр. ком. D. M. Dzebisashvili [et al.]. - 2019. - Vol. 2. - Ст.J.P36. - P.250-251. - ISBN 978-5-9500855-7-4 (Шифр В33/E12-125657784)
Примечания : Cited References: 5. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 18-42-240006
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Chekanova L. A., Yaroslavtsev R. N., Komogortsev S. V., Gerasimova Yu. V., Bayukov O. A., Volochaev M. N., Iskhakov R. S., Garanzha I. V., Kolovskaya O. S., Bairmani M. Sh., Zamay T. N.
Заглавие : Magnetic nanoconstructions of iron oxides coated with arabinogalactan functionalized with DNA aptamer
Коллективы : International Scientific Conference "Conference on Applied Physics, Information Technologies and Engineering"
Место публикации : J. Phys. Conf. Ser. - 2019. - Vol. 1399. - Ст.022026. - ISSN 1742-6588, DOI 10.1088/1742-6596/1399/2/022026. - ISSN 1742-6596 (eISSN)
Примечания : Cited References: 6
Предметные рубрики: Applied Physics
Аннотация: New composite nanoparticles for biomedical applications have been manufactured. The particles consist of an anisomeric magnetite core coated with arabinogalactan and are functionalized with cameras for As-14 ascites cells (Ehrlich carcinoma). The binding of ascitic Ehrlich carcinoma cells to magnetic nanoparticles was evaluated using fluorescence microscopy.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Vazhenina I. G., Yaroslavtsev R. N., Chekanova L. A., Cheremiskina E., Mikhlin Y.
Заглавие : Magnetic composite coatings FeC and NiC synthesized with arabinogalactan
Место публикации : IEEE Magn. Lett. - 2022. - Vol. 13. - Ст.2503505. - ISSN 1949307X (ISSN), DOI 10.1109/LMAG.2022.3164631
Примечания : Cited References: 23. - This work was supported by Russian Foundation for Basic Research, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science under Project 20-42-240010. The authors thank the Center of Collective Use of the Federal Research Center, Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences for the provided equipment
Аннотация: In this work, we investigated the ferromagnetic resonance spectra of metal/carbon composite coatings. FeC and NiC coatings were synthesized by electroless deposition using polysaccharide arabinogalactan. An analysis of the angular dependences of the resonance field showed that the coatings consist of three magnetic phases separated by a nonmagnetic phase of carbon.
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Yaroslavtsev R. N., Stolyar S. V., Chekanova L. A., Cheremiskina E. V., Vazhenina I. G.
Заглавие : Magnetic coatings of transition metals synthesized using arabinogalactan
Коллективы : International Baltic Conference on Magnetism: focus on nanobiomedicine and smart materials, Балтийский федеральный университет им. И. Канта
Место публикации : 4th International Baltic Conference on Magnetism (IBCM 2021): Book of abstracts. - 2021. - P.217
Примечания : Cited References: 2
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