Персона:
Белогорлов, Антон Анатольевич

Научные группы

Научная группа

Лаборатория «Прикладная ионная физика и масс-спектрометрия»

Организационные подразделения

Организационная единица

Институт нанотехнологий в электронике, спинтронике и фотонике

Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе. Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.

Фамилия

Белогорлов

Имя

Антон Анатольевич

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Теперь показываю 1 - 10 из 24

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The formation and decay of an unstable state of a suspension of hydrophobic nanoporous particles under rapid compression
(2021) Borman, V.; Belogorlov, A.; Tronin, V.; Белогорлов, Антон Анатольевич
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.The study of non-wetting liquid transport in a nanoporous medium is stimulated by the possible use of this process to absorb or accumulate mechanical energy. The filling of nanopores of suspended particles with a non-wetting liquid under decay of the unstable state, when the pressure increase rate is much higher than the rate of volume change, is studied. Based on the new experimental data and a theoretical model of the interacting modes of the spontaneous filling and filling under rapid compression, a picture of the percolation transition and a mechanism of liquid transport under such conditions are proposed. It is shown that a new dynamic filling threshold P0 is reached. It is shown that the filling of the porous medium is the result of the slow mode of impact compression when the fast mode of spontaneous filling is continuously adjusted to the slow mode on a small time scale. The theoretical model of the interacting modes is based on the solving of a system of kinetic equations for the distribution functions f (n, t) and F(n, t) clusters of filled pores under rapid compression, respectively. It is shown that filling at P = const corresponds to the non-dissipative transport of liquid on a time scale smaller than the characteristic filling time. The proposed model quantitatively describes the experimental data. So, the response of suspension to impact is characterized by the positive feedback.
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Hysteresis of Percolation Transition and Relaxation of Fast and Slow States of the System Nanoporous Medium-Non-Wetting Liquid
(2020) Belogorlov, A. A.; Borman, V. D.; Bortnikova, S. A.; Byrkin, V. A.; Tronin, I. V.; Tronin, V. N.; Белогорлов, Антон Анатольевич; Бортникова, Светлана Алексеевна; Быркин, Виктор Александрович; Тронин, Иван Владимирович
© 2020 Published under licence by IOP Publishing Ltd.In the present paper we present the results of experimental and theoretical studies of intrusion-extrusion and relaxation of non-wetting liquid in three Fluka porous media. New data on hysteresis of intrusion-extrusion and dependence of the degree of filling of a porous body on time in the process of extrusion were obtained experimentally. It has been established that in all the conducted experiments the liquid extrusion took place in two stages: at the first stage of fast relaxation the characteristic time of outflow is several seconds, at the second stage of slow relaxation the characteristic time is several hundred seconds. The experimental data obtained are described in the theoretical model [1]. For the studied porous media, the existence at the initial moment of time of local states with short leakage times (a few seconds or less) and states with large leakage times (hundreds of seconds) was established. Porous bodies in which the coexistence of fast and slow states at the initial moment of time is established are investigated for the first time.
Только метаданные
Effects of the Experimental Conditions on the Recovery of the Function of Size Distribution of Pores
(2024) Asafova, V.D.; Kulakov, S.A.; Bortnikova, S.A.; Belogorlov, A.A.; Асафова, Валерия Денисовна; Кулаков, Сергей Алексеевич; Бортникова, Светлана Алексеевна; Белогорлов, Антон Анатольевич
Только метаданные
Interphase surface stability in liquid-liquid membrane contactors based on track-etched membranes
(2021) Bazhenov, S.; Kristavchuk, O.; Kostyanaya, M.; Ashimov, R.; Belogorlov, A.; Белогорлов, Антон Анатольевич
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.A promising solution for the implementation of extraction processes is liquid–liquid membrane contactors. The transfer of the target component from one immiscible liquid to another is carried out inside membrane pores. For the first time, highly asymmetric track-etched membranes made of polyethylene terephthalate (PET) of the same thickness but with different pore diameters (12.5–19 nm on one side and hundreds of nanometers on the other side) were studied in the liquid– liquid membrane contactor. For analysis of the liquid–liquid interface stability, two systems widely diverging in the interfacial tension value were used: water–pentanol and water–hexadecane. The interface stability was investigated depending on the following process parameters: the porous structure, the location of the asymmetric membrane in the contactor, the velocities of liquids, and the pressure drop between them. It was shown that the stability of the interface increases with decreasing pore size. Furthermore, it is preferable to supply the aqueous phase from the side of the asymmetric membrane with the larger pore size. The asymmetry of the porous structure of the membrane makes it possible to increase the range of pressure drop values between the phases by at least two times (from 5 to 10 kPa), which does not lead to mutual dispersion of the liquids. The liquid–liquid contactor based on the asymmetric track-etched membranes allows for the extraction of impurities from the organic phase into the aqueous phase by using a 1% solution of acetone in hexadecane as an example.
Только метаданные
Outflow Kinetics of Chemical Solutions from Hydrophobized Nanostructural Silicon Compounds: Effect of Surface Tension
(2021) Shimanovsky, N. L.; Belogorlov, A. A.; Khrebtov, D. S.; Bortnikova, S. A.; Белогорлов, Антон Анатольевич; Бортникова, Светлана Алексеевна
© 2021, Springer Science+Business Media, LLC, part of Springer Nature.The outflow kinetics of aqueous solutions of n-propanol as model liquids (drug solutions) from hydrophobic nanoporous silica gel 60 C8 was studied. The solution surface tension was shown to influence the hysteresis of intrusion-extrusion pressures and outflow rate. The use of substances changing the surface tension of the injected solution, in particular doxorubicin, allows one to control the relaxation/release of doxorubicin molecules in/from the focus of the disorder at the optimum rate. The obtained results can be used to create drug delivery systems based on silicon nanoparticles.
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Study of Constant Filling Pressure Conditions in a System "nanoporous Medium-Non-wetting Liquid" in an Impact Process
(2020) Khlistunov, I. A.; Belogorlov, A. A.; Borman, V. D.; Хлистунов, Игорь Андреевич; Белогорлов, Антон Анатольевич
© 2020 Published under licence by IOP Publishing Ltd.In this work critical constant filling pressure conditions for systems "nanoporous medium-non-wetting liquid"under impact were studied. To determine the conditions influencing on the occurrence of a constant filling pressure, a series of impact experiments have been carried out on four porous media with distilled water as non-wetting liquid. On the basis of the obtained experimental data for the systems under investigation, a method for determining the flow rate of liquid in the pores was developed and its values for the systems under investigation in a given range of impact energies were determined. It is shown that the liquid flow rate in the pores is one of the key parameters determining the presence of a constant critical filling pressure. It was also found that in the investigated energy range the liquid flow rate increases and goes to limit with increasing impact energy.
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Study of the model system for delivery and controlled release of anticancer drugs in affected areas.
(2020) Mingalev, P. G.; Akopdzhanov, A. G.; Shimanovskii, N. L.; Belogorlov, A. A.; Bortnikova, S. A.; Kulakov, S. A.; Белогорлов, Антон Анатольевич; Бортникова, Светлана Алексеевна; Кулаков, Сергей Алексеевич
© 2020 Published under licence by IOP Publishing Ltd.The modern clinical oncology key task is to increase the efficiency of anticancer chemical therapy. The main direction of provided investigations are to ensure targeted delivery of drugs to cancer cells with the minimization of the harmful effect to normal cells, as well as overcoming the multiple drug resistance of cancer cells. One of the possible solutions is to use nanoporous medium filled with non-wetting liquid (drug) as a carrier. Interest to such systems is caused by two effects observed for such systems: the effect of non-wetting liquid dispersion in pores and it's anomalously slow relaxation (outflow). It has also been shown that these effects are critically dependent on temperature. The work is present results of experimental study of the kinetics of model liquid outflow from nanoporous medium at the temperature range 20-40 °C. Results obtained for systems with different granule sizes and surface modifications.
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Relaxation of Non-Wetting Liquid Dispersed in Nanoporous Medium with Partial Filling
(2020) Bortnikova, S. A.; Belogorlov, A. A.; Borman, V. D.; Byrkin, V. A.; Бортникова, Светлана Алексеевна; Белогорлов, Антон Анатольевич; Быркин, Виктор Александрович
© 2020 Published under licence by IOP Publishing Ltd.In the present work the results of experimental studies of relaxation of non-wetting liquid captured by the system of nanopores of Fluka 100 C8+C1 medium are presented. New data on dependence of filling degree on time in the process of outflow at partial initial filling have been obtained. In all the experiments carried out, fluid outflow was carried out in two stages: in the first stage of fast relaxation the characteristic time of outflow is a few seconds, in the second stage of slow relaxation the characteristic time can reach 104 seconds. It was found that "fast"states exist at any initial filling, and the degree of these states increases both with increasing temperature and with increasing initial filling of nanoporous medium with non-wetting liquid.
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Local Configurations of Pores that Course Non-Wetting Liquid Non Outflow
(2020) Bortnikova, S. A.; Belogorlov, A. A.; Borman, V. D.; Бортникова, Светлана Алексеевна; Белогорлов, Антон Анатольевич
© 2020 Published under licence by IOP Publishing Ltd.It is known that for the most nanoporous medium-non-wetting liquid systems are observed non-outflow phenomenon. It is shown that this phenomenon may depend on many factors, one of which is a waiting time. The observed anomalously slow relaxation (non-wetting liquid outflow) caused by formation of strongly interacting states of liquid clusters in pores. Previously was shown that relaxation of such states can occur due to relaxation of metastable local configurations of filled and empty pores. In the present work the relaxation of non-wetting liquid (water) dispersed in disordered nanoporous medium (hydrophobic silica gel Libersorb 23) for 6 and 9° C is considered. The pore size distribution functions of captured liquid for 9° C are obtained. Some local configurations for 6 and 9° C are analyzed and their lifetimes are defined.
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ОПРЕДЕЛЕНИЕ СКОРОСТИ ЗАПОЛНЕНИЯ НАНОПОРИСТОГО МАТЕРИАЛА НЕСМАЧИВАЮЩЕЙ ЖИДКОСТЬЮ
(НИЯУ МИФИ, 2024) Асафова, В. Д.; Кулаков, С. А.; Быркин, В. А.; Бортникова, С. А. ; Белогорлов, А. А.; Быркин, Виктор Александрович; Асафова, Валерия Денисовна; Белогорлов, Антон Анатольевич; Кулаков, Сергей Алексеевич; Бортникова, Светлана Алексеевна
Изучение процессов взаимодействия нанопористого материала с несмачивающей жидкостью вызывает интерес не только с точки зрения фундаментальной науки в части распространения жидкости в наноканалах (нанофлюидика), но и как применение таких систем для поглощения энергии удара, взрыва и вибраций. Именно для этих приложений особенно важно знать механизм распространения жидкости в нанопористых материалах и делать оценки временных характеристик отклика системы на высокоскоростные импульсные воздействия. Целью данной работы являлось исследование влияния скорости изменения давления в системе на процесс заполнения пор нанопористого материала несмачивающей жидкостью. Проведена серия экспериментов заполнения – вытекания в системе нанопористый материал (гидрофобизированный нанопористый силикагель Fluka 100 C8 (60759-50G) производства Sigma-Aldrich) – несмачивающая жидкость (деионизированная дистиллированная вода) при скоростях изменения внутреннего объема 0.24÷11.78 10‒2 см3/с при температуре 20 °С. На основе экспериментальных данных разработана методика определения скорости заполнения нанопористого материала несмачивающей жидкостью. Разработанная методика будет в дальнейшем использоваться для изучения заполнения нанопористых материалов несмачивающими жидкостями.