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Elimination of iron-containing magnetic nanoparticles from the site of injection in mice: a magnetic-resonance imaging study / E. V. Inzhevatkin [et al.] // Bull. Exp. Biol. Med. - 2015. - Vol. 158, Is. 6. - P. 807-811, DOI 10.1007/s10517-015-2867-z. - Cited References:7 . - ISSN 0007. - ISSN 1573-8221. -

РУБ Medicine, Research & Experimental

Кл.слова (ненормированные):
magnetic nanoparticles -- Klebsiella oxytoca -- magnetic resonance imaging -- elimination
Аннотация: Suspension of magnetic nanoparticles (0.7 g/liter) obtained from Klebsiella oxytoca culture was injected intraperitoneally (1 ml), intramuscularly (in the hip; 100 mu l), and subcutaneously (200 mu l) or administered orally instead of drinking water for 2 days. The presence of magnetic nanoparticles was evaluated detected by MRI in 15 min and 2 h after injections and in 1 and 2 days after the beginning of oral consumption of the suspension. Magnetic nanoparticles were eliminated from the site of intramuscular and intraperitoneal injections and after oral consumption. The period of elimination after intramuscular and intraperitoneal injections did not exceed 2 h, while after oral consumption it corresponded to the time of gastrointestinal tract contents evacuation.

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Публикация на русском языке Исследование элиминации железосодержащих магнитных наночастиц из области введения в организме мышей с использованием ЯМР–томографии [Текст] / Е. В. Инжеваткин [и др.] // Бюлл. эксперим. биол. и мед. - 2014. - Т. 158 № 12. - С. 777-781

Держатели документа:
Russian Acad Sci, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk, Russia
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Nauka Special Designing & Technol Bur, Krasnoyarsk Res Ctr, Siberian Div, Krasnoyarsk, Russia
Siberian Fed Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Inzhevatkin, E. V.; Morozov, E. V.; Морозов, Евгений Владимирович; Khilazheva, E. D.; Ladygina, V. P.; Stolyar, S. V.; Столяр, Сергей Викторович; Falaleev, O. V.
}
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Morozov, E. V.
New insight into the wax precipitation process: in situ NMR imaging study in a cold finger cell / E. V. Morozov, O. V. Falaleev, O. N. Martyanov // Energy Fuels. - 2016. - Vol. 30, Is. 11. - P. 9003-9013, DOI 10.1021/acs.energyfuels.6b01535. - Cited References: 69. - This research was performed with the financial support of the Russian Science Foundation (Project No. 15-19-00119). . - ISSN 0887-0624
Кл.слова (ненормированные):
Cells -- Crude oil -- Cytology -- Deposits -- Diffusion -- Gelation -- Magnetic resonance imaging -- Ostwald ripening -- Phase separation -- Polymer blends -- Deposit formation -- Deposit structures -- Diffusion controlled growth -- Dominant mechanism -- Lower temperatures -- Morphology and dynamics -- Phase-separation process -- Temperature regimes -- Image processing
Аннотация: A cold finger cell intended for the wax deposition measurements was fabricated and integrated into an NMR imaging probe for the noninvasive study of wax precipitation processes in situ. The cell was first tested with a model system; then, a series of experiments with different thermal gradients applied to the cell were performed for a waxy crude oil. NMR imaging of the operating cell revealed the formation of a deposit with the morphology and dynamics strongly correlating with the temperature regime. At higher temperatures of cold finger, the incipient wax gel ages uniformly, giving rise to the hard and thin inner layer of deposit accompanied by a branched loosely consolidated outer layer. Conversely, the lower temperatures facilitate formation of a thick deposit which no longer ages uniformly and slow down the diffusion-controlled growth of the branched deposit structure. The results obtained are consistent with the majority of the data previously reported. Thus, gelation of the wax at temperatures below the cloud point and subsequent thermal-driven diffusion processes are considered to be the dominant mechanisms of the deposit formation. The counter diffusion and Ostwald ripening aging concepts were found to be relevant in the case of the cold finger study and account for the phenomena observed in this work. The information obtained via NMR imaging is highly complementary to the results obtained by other techniques that can aid in understanding the essential processes behind the wax precipitation phenomena. The approach developed can be effectively extended to study any thermal-driven phase separation process. © 2016 American Chemical Society.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Ak. Lavrentieva 5, Novosibirsk, Russian Federation
Krasnoyarsk Scientific Centre, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Falaleev, O. V.; Martyanov, O. N.; Морозов, Евгений Владимирович
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Morozov, E. V.
Reversibility of asphaltene aggregation as revealed by magnetic resonance imaging in situ / E. V. Morozov, O. N. Martyanov // Energy Fuels. - 2017. - Vol. 31, Is. 10. - P. 10639-10647, DOI 10.1021/acs.energyfuels.7b01755. - Cited References: 56. - This research was performed on the equipment of Krasnoyarsk Regional Research Equipment Centre of Siberian Branch of Russian Academy of Sciences with the financial support of Russian Science Foundation (Project No. 15-19-00119). . - ISSN 0887-0624
Кл.слова (ненормированные):
Aggregates -- Crude oil -- Flocculation -- Heavy oil production -- Magnetic resonance imaging -- Asphaltene aggregates -- Asphaltene aggregation -- Asphaltene precipitation -- Equilibrium compositions -- Flocculant concentrations -- Inhomogeneous distribution -- Mechanical stirring -- Multi-component systems -- Asphaltenes
Аннотация: Aggregation of asphaltenes followed by precipitation presents severe problems for existing technologies in the production, recovery, and processing of heavy oils. Better understanding of asphaltene behavior behind the processes of their precipitation and dissolution is vital to address this issue. While investigating the inhomogeneity of different oil systems, the reversibility of the asphaltene aggregation process initiated by flocculant in either asphaltene solution in toluene or crude heavy oil was revealed and investigated using magnetic resonance imaging methods. It was found that the inhomogeneous distribution of the flocculant initiates local spatial-selective asphaltene aggregation registered in a thin layer around the flocculant/oil sample interface. The local excess of flocculant concentration over the threshold of asphaltene precipitation onset is a driving force of this process. As the flocculant diffuses into the volume of the sample, a decrease of the asphaltene flocculated area is observed until it disappears when the equilibrium composition throughout the whole volume of the system is achieved. Depending on the overall flocculant concentration, the asphaltene aggregation may not be reversible and could be followed by subsequent precipitation of the asphaltene aggregates. The similarity of the phenomena observed for the model asphaltene solutions and crude heavy oil samples was established. Partial mechanical stirring of the multicomponent system comprising flocculant and oil or asphaltene solution does not prevent the formation of the local zones with increased concentration of asphaltene aggregates; those sizes evolve depending on the flocculant concentration. The results obtained in this work are consistent with the generally accepted concept of asphaltene precipitation reversibility depending on the system composition and are compatible with the observations obtained by other methods. The approach presented can provide deeper insight into the asphaltene precipitation reversibility issue and can facilitate the understanding of asphaltene behavior in heavy oils.

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Держатели документа:
Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/24, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Ak. Lavrentieva 5, Novosibirsk, Russian Federation
Novosibirsk State University, Pirogova str. 2, Novosibirsk, Russian Federation

Доп.точки доступа:
Martyanov, O. N.; Морозов, Евгений Владимирович
}
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Magnetic Resonance Imaging of Water Absorption by Highly Porous Ceramic Materials / E. V. Morozov [et al.] // Dokl. Chem. - 2019. - Vol. 484, Is. 2. - P. 44-47, DOI 10.1134/S0012500819020058. - Cited References: 9. - The studies were performed using equipment of KRTsKP FITs "KNTs SO RAN" in the framework of the program of basic research of the Russian Academy of Sciences (project no. V.44.1.7.) regarding the development of the MRI methodology for studying composite and porous materials, and also supported by the Russian Foundation for Basic Research (project no. 16-29-05334ofi_m "Scientific foundations for creating thin-film coatings with controlled wettability") regarding the development of water-repellent porous materials. . - ISSN 0012-5008
Кл.слова (ненормированные):
magnetic resonance imaging -- porosity -- ceramic materials -- hydrophobic coatings -- adsorption -- capillary phenomena
Аннотация: A nontrivial character of water absorption in highly porous ceramic materials has been demonstrated for the first time by magnetic resonance imaging: a phenomenon of hygroscopic memory has been detected consisting in the concentration of adsorbed water in certain areas inside the sample, repeated during subsequent wetting with water. It has been shown that hydrophobization of the material by applying fluoro paraffin coatings to oxide fibers using the method of dissolution of fluoropolymers in supercritical CO2 has a significant impact on the transport of water into products and can be considered an efficient means of protecting porous materials from moisture. The results demonstrate the capabilities of the MRI method in studying the water absorption and identifying water migration pathways in highly porous materials.

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Публикация на русском языке Магнитно-резонансная томография водопоглощения высокопористыми керамическими материалами [Текст] / Е. В. Морозов [и др.] // Докл. Акад. наук. - 2019. - Т. 484 № 5. - С. 563-567

Держатели документа:
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
All-Russian Research Institute of Aviation Materials, Moscow, 105005, Russian Federation
Gubkin State University of Oil and Gas, Moscow, 119991, Russian Federation

Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Buznik, V. M.; Bespalov, A. S.; Grashchenkov, D. V.
}
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Aptamer-conjugated superparamagnetic ferroarabinogalactan nanoparticles for targeted magnetodynamic therapy of cancer / O. S. Kolovskaya, T. N. Zamay, G. S. Zamay [et al.] // Cancers. - 2020. - Vol. 12, Is. 1. - Ст. 216, DOI 10.3390/cancers12010216. - Cited References: 46. - This research was funded by the Ministry of Science and Higher Education of the Russian Federation; project 0287-2019-0007 . - ISSN 2072-6694
Кл.слова (ненормированные):
aptamers -- arabinogalactan -- superparamagnetic ferroarabinogalactans -- drug delivery -- magnetodynamic therapy -- magnetically induced cell disruption -- magnetic resonance imaging
Аннотация: Nanotechnologies involving physical methods of tumor destruction using functional oligonucleotides are promising for targeted cancer therapy. Our study presents magnetodynamic therapy for selective elimination of tumor cells in vivo using DNA aptamer-functionalized magnetic nanoparticles exposed to a low frequency alternating magnetic field. We developed an enhanced targeting approach of cancer cells with aptamers and arabinogalactan. Aptamers to fibronectin (AS-14) and heat shock cognate 71 kDa protein (AS-42) facilitated the delivery of the nanoparticles to Ehrlich carcinoma cells, and arabinogalactan (AG) promoted internalization through asialoglycoprotein receptors. Specific delivery of the aptamer-modified FeAG nanoparticles to the tumor site was confirmed by magnetic resonance imaging (MRI). After the following treatment with a low frequency alternating magnetic field, AS-FeAG caused cancer cell death in vitro and tumor reduction in vivo. Histological analyses showed mechanical disruption of tumor tissues, total necrosis, cell lysis, and disruption of the extracellular matrix. The enhanced targeted magnetic theranostics with the aptamer conjugated superparamagnetic ferroarabinogalactans opens up a new venue for making biocompatible contrasting agents for MRI imaging and performing non-invasive anti-cancer therapies with a deep penetrated magnetic field.

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Держатели документа:
Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Science”, 660036 Krasnoyarsk, Russia
Laboratory for Biomolecular and Medical Technologies, Faculty of Medicine, Krasnoyarsk State Medical University named after prof. V.F. Voino-Yasenecki, 660022 Krasnoyarsk, Russia
Irkutsk Institute of Chemistry named after A.E. Favorsky, the Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia
L.V. Kirensky Institute of Physics SB RAS—The Branch of Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Laboratory of Advanced Materials and Technology, Tomsk State University, 634050 Tomsk, Russia
Institute of Chemistry and Chemical Technology SB RAS—The Branch of Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
School of Non-Ferrous Metals and Materials Science, Siberian Federal University, 660041 Krasnoyarsk, Russia
Faculty of Physics, Department of Magnetism, Lomonosov Moscow State University, 119991 Moscow, Russia
School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada

Доп.точки доступа:
Kolovskaya, O. S.; Коловская, О. С.; Zamay, T. N.; Замай, Т. Н.; Zamay, G. S.; Замай, Галина Сергеевна; Babkin, V. A.; Medvedeva, E. N.; Neverova, N. A.; Kirichenko, A. K.; Zamay, S. S.; Замай, С. С.; Lapin, I. N.; Morozov, E. V.; Морозов, Евгений Владимирович; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Narodov, A. A.; Fedorov, D. G.; Tomilin, F. N.; Томилин, Феликс Николаевич; Zabluda, V. N.; Заблуда, Владимир Николаевич; Alekhina, Yu.; Lukyanenko, K. A.; Glazyrin, Yu. E.; Svetlichnyi, V. A.; Berezovski, M. V.; Kichkailo, A. S.
}
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    Synthesis, mass spectroscopy detection, and density functional theory investigations of the Gd endohedral complexes of C82 fullerenols / A. A. Shakirova, F. N. Tomilin, V. A. Pomogaev [et al.] // Computation. - 2021. - Vol. 9, Is. 5. - Ст. 58, DOI 10.3390/computation9050058. - Cited References: 41. - The experimental results were funded by RFBR project No. 18-29-19003 MK. The quantum chemical study was funded by project 0721-2020-0033 of the Russian Ministry of Science and Education. The collaboration and coordination of Russian and Korean teams was supported by Collaborative NRF-RFBR grant (Korean ID: NRF-2019K2A9A1A06100125; Russian ID: Project No. 19-53-51005 NIFa RFFI-Korea) and NRF 2021R1A2C1010455 grant . - ISSN 2079-3197
   Перевод заглавия: Синтез, масс-спектроскопическое определение и исследование теорией функционала плотности Gd-эндоэдральных комплексов фуллеренолов C82

РУБ Mathematics, Interdisciplinary Applications
Рубрики:
ZETA VALENCE QUALITY
   BIOLOGICAL-ACTIVITY
   BASIS-SETS
   TOXICITY
Кл.слова (ненормированные):
endohedral fullerenes -- density functional theory -- antioxidant activity -- reactive oxygen species -- magnetic resonance imaging
Аннотация: Gd endohedral complexes of C82 fullerenols were synthesized and mass spectrometry analysis of their composition was carried out. It was established that the synthesis yields a series of fullerenols Gd@C82Ox(OH)y (x = 0, 3; y = 8, 16, 24, 36, 44). The atomic and electronic structure and properties of the synthesized fullerenols were investigated using the density functional theory calculations. It was shown that the presence of endohedral gadolinium increases the reactivity of fullerenols. It is proposed that the high-spin endohedral fullerenols are promising candidates for application in magnetic resonance imaging.

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Держатели документа:
Siberian Fed Univ, Dept Biophys, Sch Engn Phys & Radio Elect, Sch Petr & Gas Engn, Pr Svobodny 79, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk Sci Ctr, Akad Gorodok 50, Krasnoyarsk 660036, Russia.
Natl Res Tomsk State Univ, Dept Phys, Lenina Ave 36, Toms 634050, Russia.
Kyungpook Natl Univ, Dept Chem, 80 Daehak Ro, Daegu 41566, South Korea.
Kyungpook Natl Univ, Green Nano Mat Res Ctr, 80 Daehak Ro, Daegu 41566, South Korea.
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk Sci Ctr, Akad Gorodok 50-50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Shakirova, Anastasia A.; Tomilin, F. N.; Томилин, Феликс Николаевич; Pomogaev, Vladimir A.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Kudryasheva, Nadezhda S.; Tchaikovskaya, Olga N.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Avramov, Pavel V.; RFBRRussian Foundation for Basic Research (RFBR) [18-29-19003 MK]; Russian Ministry of Science and EducationMinistry of Education and Science, Russian Federation [0721-2020-0033]; Collaborative NRF-RFBR grant (Korean) [NRF-2019K2A9A1A06100125]; Collaborative NRF-RFBR grant (Russian) [19-53-51005 NIFa RFFI-Korea]; NRF [2021R1A2C1010455]
}
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Nuclear magnetic resonance study of ice-based composite materials reinforced with nanodisperse aluminum oxide fibers / E. V. Morozov, A. S. Voronin, S. V. Kniga, V. M. Buznik // Inorg. Mater. Appl. Res. - 2022. - Vol. 13, Is. 1. - P. 217-224, DOI 10.1134/S2075113322010270. - Cited References: 21. - This work was performed within the scope of state contract no. 0287-2021-0012 of the Institute of Chemistry and Chemical Technology (Siberian Branch, Russian Academy of Sciences) in the part of developing the MRI methods for studying composite materials; also the work was supported by the Russian Science Foundation (project no. 18-1300392) in the part of the study of the processes of water crystallization and ice melting in ice-based composite materials . - ISSN 2075-1133. - ISSN 2075-115X

РУБ Materials Science, Multidisciplinary
Рубрики:
SELF-DIFFUSION
WATER
Кл.слова (ненормированные):
ice composite materials -- reinforcing -- freezing -- melting -- NMR spectroscopy -- magnetic resonance imaging
Аннотация: Pulsed-field gradient NMR spectroscopy and magnetic resonance imaging methods were used to investigate water suspensions of nanosized fibers of aluminum oxide and ice composite materials based on these fibers. Introduction of the nanofibers was shown to have no noticeable structural effect in the suspensions in the Al2O3 concentration range of 1-10 wt %. High content of the filler was found to change the morphology and texture of the ice matrix in the composites remarkably: it becomes more homogeneous and acquires a higher degree of continuity; the melting front does not visualize internal melting zones or integrity defects in the composite. At the same time, addition of the nanofibers to the ice composites weakly influences the quantitative dynamics of the heat transfer, which is manifested in close values of the propagation speeds of the freezing/melting front in the samples at similar temperatures.

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Публикация на русском языке Исследование ледовых композиционных материалов, армированных нанодисперсными волокнами оксида алюминия, методами ядерного магнитного резонанса [Текст] / Е. В. Морозов, А. С. Воронин, С. В. Книга, В. М. Бузник // Материаловедение. - 2021. - № 8. - С. 9-18

Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
All Russian Sci Res Inst Aviat Mat, Moscow 105005, Russia.
Tomsk State Univ, Tomsk 634050, Russia.

Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Voronin, A. S.; Kniga, S., V; Buznik, V. M.; Institute of Chemistry and Chemical Technology (Siberian Branch, Russian Academy of Sciences) [0287-2021-0012]; Russian Science FoundationRussian Science Foundation (RSF) [18-1300392]
}
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Use of magnetic resonance imaging in petroleum research: Potentialities and prospects (a Review) / E. V. Morozov, D. A. Sandzhieva, A. G. Dedov, V. M. Buznik // Pet. Chem. - 2023. - Vol. 63, Is. 1. - P. 52-66, DOI 10.1134/S0965544123020196. - Cited References: 76. - The study was supported by the Russian Science Foundation (project no. 22-13-00410, http://rscf.ru/project/22-13-00410/) . - ISSN 0965-5441. - ISSN 1555-6239
Кл.слова (ненормированные):
magnetic resonance imaging -- crude oil -- transport -- stability -- deposits
Аннотация: Potentialities of magnetic resonance imaging (MRI) in petroleum research are analyzed. Major attention is paid to technical features of the method as applied to oil extraction and preparation. Available published data are systematized. Four key directions of MRI, which undergo active development now, are distinguished: oil in a porous matrix; oil interfaces; destabilization of petroleum systems; transport of crude oils and petroleum systems. Key studies in this field are considered, essential points reflecting the MRI efficiency are presented, and the range of problems that can be solved using MRI, including prospects for further expansion of the application fields, is outlined. The possibilities of studying the morphological, structural, and dynamic aspects of the interaction of crude oils with the environment and the phase behavior of oils under the conditions of intense external actions are discussed. The review favors expansion of the experimental potential of specialists in the field of oil extraction, preparation, and refining, and also in the adjacent fields of physical and colloidal chemistry, chemistry of surface phenomena, and macromolecular chemistry.

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Публикация на русском языке Возможности и перспективы применения магнитно-резонансной томографии в исследовании нефтей (обзор) [Текст] / Е. В. Морозов, Д. А. Санджиева, А. Г. Дедов, В. М. Бузник. - 17 с. // Петролеомика. - 2023. - Т. 3 № 1. - С. 57-73

Держатели документа:
Institute of Chemistry and Chemical Technology, Krasnoyarsk Scientific Center, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Krasnoyarsk, 660036, Russian Federation
Gubkin Russian State University of Oil and Gas (National Research University), Moscow, 119991, Russian Federation
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, 119991, Russian Federation

Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Sandzhieva, D. A.; Dedov, A. G.; Buznik, V. M.
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Morozov, E. V.
Magnetic resonance imaging study of water absorption of polymer composite materials subjected to mechanical and temperature impact / E. V. Morozov, A. V. Il’ichev, V. M. Bouznik // Russ. J. Phys. Chem. B. - 2023. - Vol. 17, Is. 6. - P. 1361-1369, DOI 10.1134/S1990793123060064. - Cited References: 18. - The research was carried out as part of a state assignment of the Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences (project no. 0287-2021-0012) using the equipment of the Krasnoyarsk Regional Center for Collective Use of the Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences" . - ISSN 1990-7931. - ISSN 1990-7923
Кл.слова (ненормированные):
composite material -- fiberglass -- nuclear magnetic resonance -- magnetic resonance imaging -- water absorption
Аннотация: The results of a study of water absorption processes by samples of polymer composite materials (PCMs) based on fiberglass, subjected to low-speed impact with controlled impact energy and alternating temperature cycling are presented. Using magnetic resonance imaging (MRI), the distribution of absorbed water in the fiberglass structure is visualized and the dynamics of its accumulation in various areas of the sample are studied. It is found that mechanical impact leads to a nonuniform distribution of the absorbed water in the samples and a significant accumulation of free water in the areas of destruction and adjacent layers in the event of a violation of the integrity of the outer layer of the material. It is shown that cyclic alternating temperature effects do not lead to a noticeable change in the water absorption processes and are comparable in effect to mechanical nondestructive impacts. The results obtained using MRI are in close agreement with the data of traditional weight measurements, which shows the effectiveness of the method in diagnosing defects and mechanical damage to PCMs exposed to the humid environment.

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Публикация на русском языке Морозов, Евгений Владимирович. Исследование водопоглощения полимерных композиционных материалов, подверженных механическому и температурному воздействиям, методом магнитно-резонансной томографии [Текст] / Е. В. Морозов, А. В. Ильичев, В. М. Бузник. - 9 с. // Химич. физика. - 2023. - Т. 42 № 11. - С. 54-62

Держатели документа:
Kirensky Institute of Physics of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia

Доп.точки доступа:
Il’ichev, A. V.; Ильичев А. В.; Bouznik, V. M.; Бузник, Вячеслав Михайлович; Морозов, Евгений Владимирович
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