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Каталог книг и брошюр библиотеки ИФ СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Krasitskaya V. V., Frank L. A., Yaroslavtsev R. N., Chekanova L. A., Gerasimova Yu. V., Volochaev M. N., Bairmani M. S., Velikanov D. A.
Заглавие : Polysaccharide-coated iron oxide nanoparticles: Synthesis, properties, surface modification
Место публикации : Mater. Lett. - 2021. - Vol. 284. - Ст.128920. - ISSN 0167577X (ISSN), DOI 10.1016/j.matlet.2020.128920
Примечания : Cited References: 12. - The reported study was carried out with the financial support of the Russian Foundation for Fundamental Research , the Government of the Krasnoyarsk Territory , the Krasnoyarsk Territory Fund for Support of Scientific and Technical Activity in the framework of scientific Project No. 18-43-243003. This work was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3)
Аннотация: In this work, magnetite nanoparticles coated with polysaccharides were synthesized. Arabinogalactan and chitosan were used as polysaccharides. The possibilities of immobilization of biospecific molecules on the surface of the obtained composites were studied. Experiments on covalent immobilization of biospecific molecules on magnetic nanoparticles coated with a polysaccharide showed a high density of immobilized molecules. This suggests the use of such materials in bioanalytical systems or as affinity sorbents.
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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) : Stolyar S. V., Komogortsev S. V., Chekanova L. A., Yaroslavtsev R. N., Bayukov O. A., Velikanov D. A., Volochaev M. N., Cheremiskina E. V., Bairmani M. S., Eroshenko P. E., Iskhakov R. S.
Заглавие : Magnetite Nanocrystals with a High Magnetic Anisotropy Constant due to the Particle Shape
Место публикации : Tech. Phys. Lett. - 2019. - Vol. 45, Is. 9. - P.878-881. - ISSN 10637850 (ISSN), DOI 10.1134/S1063785019090116
Примечания : Cited References: 20. - This study was supported in part by the Russian Foundation for Basic Research, Government of Krasnoyarsk Krai, Science Foundation of Krasnoyarsk Krai within research projects nos. 18-42-240006 (“Nanomaterials with Magnetic Properties Determined by the Nanostructure Topological Features”) and 18-43-243003 (“Sonochemical Treatment of Magnetic Nanoparticles As a Way of Modifying Their Properties”) and a special program of the Ministry of Education and Science of the Russian Federation for Siberian Federal University.
Аннотация: Chemical solution deposition in the presence of arabinogalactan makes it possible to prepare magnetite nanocrystals in the form of square plates with a high aspect ratio (~1/9). The magnetic anisotropy constant of particles is several times higher than that of spherical magnetite particles, which enhances the hysteretic properties with a small particle volume retained.
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