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Kniazev, I.
Magnetic transition study in e-Fe2O3 by conventional Mössbauer spectroscopy and synchrotron radiation source / Yu. V. Knyazev // NRS workshop : list of posters. - 2019. - Ст. 9

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Доп.точки доступа:
Князев, Юрий Владимирович; EBS Workshop on Nuclear Resonance Scattering(2019 ; March. 11-12 ; Grenoble, France)
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Kudryasheva, N. S.
Monitoring of Low-Intensity Exposures via Luminescent Bioassays of Different Complexity: Cells, Enzyme Reactions, and Fluorescent Proteins / N. S. Kudryasheva, E. S. Kovel // Int. J. Mol. Sci. - 2019. - Vol. 20, Is. 18. - Ст. 4451, DOI 10.3390/ijms20184451. - Cited References: 106. - This work was supported by PRAN-32, Program: “Nanostructures: physics, chemistry, biology, technological basis”; RFBR N 18-29-19003; RFBR-Krasnoyarsk Regional Foundation N 18-44-242002, 18-44-240004. . - ISSN 1422-0067
Кл.слова (ненормированные):
luminescence bioassays -- bacterial cells, enzymes -- fluorescent protein -- low-intensity factors -- hormesis -- radiation -- bioactive compounds -- antioxidant activity
Аннотация: The current paper reviews the applications of luminescence bioassays for monitoring the results of low-intensity exposures which produce a stimulative effect. The impacts of radioactivity of different types (alpha, beta, and gamma) and bioactive compounds (humic substances and fullerenols) are under consideration. Bioassays based on luminous marine bacteria, their enzymes, and fluorescent coelenteramide-containing proteins were used to compare the results of the low-intensity exposures at the cellular, biochemical, and physicochemical levels, respectively. High rates of luminescence response can provide (1) a proper number of experimental results under comparable conditions and, therefore, proper statistical processing, with this being highly important for "noisy" low-intensity exposures; and (2) non-genetic, i.e., biochemical and physicochemical mechanisms of cellular response for short-term exposures. The results of cellular exposures were discussed in terms of the hormesis concept, which implies low-dose stimulation and high-dose inhibition of physiological functions. Dependencies of the luminescence response on the exposure time or intensity (radionuclide concentration/gamma radiation dose rate, concentration of the bioactive compounds) were analyzed and compared for bioassays of different organization levels.

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Держатели документа:
Institute of Biophysics, Federal Research Center "Krasnoyarsk Science Center, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Physics, Federal Research Center "Krasnoyarsk Science Center, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kovel, E. S.; Ковель, Екатерина Сергеевна
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    Processes underlying the laser photochromic effect in colloidal plasmonic nanoparticle aggregates* / A. E. Ershov, V. S. Gerasimov, I. L. Isaev [et al.] // Chin. Phys. B. - 2020. - Vol. 29, Is. 3. - Ст. 037802, DOI 10.1088/1674-1056/ab6551. - Cited References: 38. - Project funded by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science (Grant 18-42-243023), the RF Ministry of Science and Higher Education, and the State Contract with Siberian Federal University for Scientific Research. A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676). . - ISSN 1674-1056. - ISSN 1741-4199
Рубрики:
SELECTIVE PHOTOMODIFICATION
   LIGHT
   FORCES
   OPTICS
Кл.слова (ненормированные):
nanoparticle -- surface plasmon resonance -- photochromic process -- pulsed laser radiation
Аннотация: We have studied the dynamic and static processes occurring in disordered multiparticle colloidal Ag aggregates with natural structure and affecting their plasmonic absorption spectra under pico- and nanosecond pulsed laser radiations, as well as the physical origin responsible for these processes. We have shown that depending on the duration of the laser pulse, the mechanisms of laser modification of such aggregates can be associated both with changes in the resonant properties of the particles due to their heating and melting (picosecond irradiation mode) and with the particle shifts in the resonant domains of the aggregates (nanosecond pulses) which depend on the wavelength, intensity, and polarization of the radiation. These mechanisms result in formation of a narrow dip in the plasmonic absorption spectrum of the aggregates near the laser radiation wavelength and affect the shape and position of the dip. The effect of polydispersity of nanoparticle aggregates on laser photochromic reaction has been studied.

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Держатели документа:
RAS, SB, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, SB, KSC, Kirensky Inst Phys,Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Isaev, I. L.; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory [18-42-243023]; Krasnoyarsk Regional Fund of Science [18-42-243023]; RF Ministry of Science and Higher Education; Siberian Federal University for Scientific Research; Russian FederationRussian Federation [075-15-2019-676]
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Experimental observation of symmetry protected bound state in the radiation continuum in the periodic array of ceramic disks / A. A. Bogdanov [et al.] // J. Phys. Conf. Ser. : IOP, 2018. - Vol. 1124: 5th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, Saint Petersburg OPEN 2018 (2 April 2018 through 5 April 2018, ) Conference code: 144220, Is. 5. - Ст. 051057, DOI 10.1088/1742-6596/1124/5/051057. - Cited References: 3. - This work was supported by the Russian Foundation for Basic Research (16-37-60064, 17-02-01234), the Ministry of Education and Science of the Russian Federation (3.1668.2017/4.6), the President of Russian Federation (MK-403.2018.2).
Кл.слова (ненормированные):
Ceramic disks -- Field profile -- GHz frequencies -- Material loss -- Periodic arrays -- Quadratic growth -- Resonant state -- Transmission spectrums
Аннотация: We observe experimentally symmetry protected bound states in the continuum (BICs) in the stack of ceramic disks. We analyze transformation of the resonant state into BIC with increasing of the number of disks theoretically and experimentally. In the experiment we measure the transmission spectra through the array of ceramic disks at GHz frequencies. We observe a quadratic growth of the Q-factor of quasi-BIC with the number of disks due to material losses. We cross-check the observation of BIC in the transmission spectra by measurement of the field profiles which are a good agreement with the results of the numerical simulations. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Department of Photonics and Metamateials, ITMO University, St.Petersburg, 197101, Russian Federation
Ioffe Institute, St. Petersburg, 194021, Russian Federation
St.Petersburg Academic University, Khlopina 8/3, St.-Petersburg, 194021, Russian Federation
Giricond Research Institute, Ceramics Co. Ltd., Saint Petersburg, 194223, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Bogdanov, A. A.; Balezin, M.; Kapitanova, P. V.; Sadrieva, Z.; Belyakov, M. A.; Nenasheva, E. A.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures(5 ; 2008 ; 2 - 5 April ; Saint Petersburg)
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    Structural and compositional specifications on biogenic ferrihydrite nanoparticles production by Klebsiella oxytoca / S. Kichanov [et al.] // Rom. Rep. Phys. - 2018. - Vol. 70, Is. 4. - Ст. 511. - Cited References: 17. - This work was supported by the Joint Institute for Nuclear Research Project No. 04-4-1121-2015/2017, and RO-JINR Projects Nos. 95/15.02.2016 and 96/15.02.2016, items 77, 82 and was funded by RFBR and Krasnoyarsk region according to the research project No 17-43-240527. Support by the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation is acknowledged. . - ISSN 1221-1451. - ISSN 1841-8759
   Перевод заглавия: Особенности структуры и химического состава биогенных наночастиц ферригидрита полученных микроорганизмами Klebsiella oxytoca
Рубрики:
MAGNETIC-PROPERTIES
Кл.слова (ненормированные):
Biogenic ferrihydrite -- nanoparticles structure -- synchrotron radiation -- powder diffraction -- PIXE -- PIGE -- RBS
Аннотация: Investigations of biogenic ferrihydrite nanoparticles produced by bacteria Klebsiella oxytoca by applying methods of synchrotron radiation powder diffraction, particle-induced X-ray emission (PIXE), proton induced gamma-emission (PIGE) and proton Rutherford backscattering (RBS) are reported and discussed.

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Держатели документа:
Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Krasnoyarsk, Russia.
ELI NP, POB MG6, Bucharest, Romania.
Ovidius Univ, Fac Appl Sci & Engn, Constanta, Romania.
Moscow Tech Phys Inst, Dolgoprudnyi, Russia.

Доп.точки доступа:
Kichanov, S.; Pantelica, A.; Pantelica, D.; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Aranghel, D.; Ionescu, P.; Vladoiu, R.; Balasoiu, M.; Joint Institute for Nuclear Research Project [04-4-1121-2015/2017]; RO-JINR Projects [95/15.02.2016, 96/15.02.2016, 77, 82]; Krasnoyarsk region [17-43-240527]; Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation; RFBR
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Experimental observation of a symmetry-protected bound state in the continuum in a chain of dielectric disks / Z. F. Sadrieva [et al.] // Phys. Rev. A. - 2019. - Vol. 99, Is. 5. - Ст. 053804, DOI 10.1103/PhysRevA.99.053804. - Cited References:61. - The numerical simulations and experimental part of this work were supported by the Russian Science Foundation (Grant No. 17-12-01581), and the analytical calculations were supported by RFBR (Grant No. 18-32-20205) and the Ministry of Education and Science of the Russian Federation (3.1668.2017/4.6). The authors are thankful to Andrey Sayanskiy for assistance in the holder fabrication. A.A.B. and Z.F.S. acknowledge the Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" for valuable financial support. . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
LIGHT
   RESONANCES
   RADIATION
   MOMENTUM
   BEHAVIOR
   LAYER
Аннотация: The existence of bound states in the continuum (BIC) manifests a general wave phenomenon first predicted in quantum mechanics by John von Neumann and Eugene Wigner [J. von Neumann and E. Wigner, Phys. Z. 30, 465 (1929)]. Today it is being actively explored in photonics, radiophysics, acoustics, and hydrodynamics. We report an experimental observation of an electromagnetic bound state in the radiation continuum in a one-dimensional array of dielectric particles. By measurement of the transmission spectra of the ceramic disk chain at GHz frequencies, we demonstrate how a resonant state in the vicinity of the center of the Brillouin zone turns into a symmetry-protected BIC with increase in the number of the disks. We estimate a number of the disks when the radiation losses become negligible in comparison to material absorption and, therefore, the chain could be considered practically as infinite. The presented analysis is supplemented by measurements of the near fields of the symmetry-protected BIC. All measurements are in a good agreement with the results of the numerical simulation and analytical model based on a tight-binding approximation. The obtained results provide useful guidelines for practical implementations of structures with bound states in the continuum that opens up horizons for the development of optical and radio-frequency metadevices.

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Держатели документа:
ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia.
Ceram Co Ltd, Giricond Res Inst, St Petersburg 194223, Russia.
RAS, SB, KSC, Kirensky Inst Phys Fed Res Ctr, Krasnoyarsk 660036, Russia.
Ioffe Inst, St Petersburg 194021, Russia.

Доп.точки доступа:
Sadrieva, Z. F.; Belyakov, M. A.; Balezin, M. A.; Kapitanova, P. V.; Nenasheva, E. A.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Bogdanov, A. A.; Russian Science Foundation [17-12-01581]; RFBR [18-32-20205]; Ministry of Education and Science of the Russian Federation [3.1668.2017/4.6]; Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS"
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Brownian dynamics of the self-assembly of complex nanostructures in the field of quasi-resonant laser radiation / V. S. Kornienko [et al.] // Photonics Nanostruc. Fundam. Appl. - 2019. - Vol. 35. - Ст. 100707, DOI 10.1016/j.photonics.2019.100707. - Cited References: 32. - The reported study was funded by Russian Science Foundation (Grant 18-72-00003 ). V.V. Slabko is grateful for the support from the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU ). . - ISSN 1569-4410
Кл.слова (ненормированные):
Dipole-dipole interaction -- Laser field -- Brownian dynamics -- Self-assembly of nanostructures -- Colloidal crystals
Аннотация: Self-assembly of nanoparticles under the action of laser field can be an universal method for the formation of nanostructures with specific properties for application in sensorics and nanophotonics. For prognosis of the self-assembly processes, the model of movement of an ensemble of nanoparticles in a viscous media under the action of laser radiation with the account for interaction of laser-induced polarizations and Brownian dynamics is developed. This model is applied to the investigation of the self-assembly process of a triple of nanoparticles into three-particle structure with a predetermined geometry.Two specific cases of formation of nanostructure from a preliminarily formed pair of particles are studied: either for the pair fixed in space or from the unfixed pair of nanoparticles. The geometry of resulting nanostructures is shown to be determined by the polarization direction of laser radiation and the laser wavelength. Under proper choice of these parameters the formation of structures is shown to be highly efficient. E. g., maximum probability of structures formation is as hig as 36–46% per single laser pulse of 10 ns duration. © 2019 Elsevier B.V.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Computational Mathematics, Institute of Computational Modeling of Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kornienko, V. S.; Tsipotan, A. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Slabko, V. V.
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Method of anisotropic metasurface unit cell surface impedance calculation / K. V. Lemberg, A. N. Kosmynin, A. M. Aleksandrin [et al.] // Conference Proceedings - 2021 Radiation and Scattering of Electromagnetic Waves, RSEMW 2021 : Institute of Electrical and Electronics Engineers, 2021. - P. 273-275, DOI 10.1109/RSEMW52378.2021.9494126. - Cited References: 8. - The research was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, project number 20-47-243002
Кл.слова (ненормированные):
metasurface antenna -- anisotropic metasurface -- surface impedance -- holographic beamforming
Аннотация: High gain antennas based on metasurfaces with modulated surface impedance are a new class of antennas that have appeared in the last decade. They characterized by a simple design, but a relatively complex synthesis procedure. The paper briefly describes the modulated metasurface antennas principle of operation, and gives a specific method for calculating the anisotropic cell impedance tensor based on the calculation of cell eigenmodes in the infinite surface approximation. The method is intended for use at the first stage of the metasurface antenna synthesis, which consists in creating a database of cell tensorial impedances.

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Держатели документа:
Scientific Instrumentation Laboratory, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Matrix Wave LLC, Moscow, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lemberg, K. V.; Лемберг, Константин Вячеславович; Kosmynin, A. N.; Aleksandrin, A. M.; Grushevsky, E. O.; Грушевский, Евгений Олегович; Podshivalov, I. V.; Подшивалов, Иван Валерьевич; Radiation and Scattering of Electromagnetic Waves(2021 ; 28 June - 2 July ; Divnomorskoe, Russia)
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    In situ X-ray diffraction study of chrysotile at high P–T conditions: transformation to the 3.65 Å phase / S. V. Goryainov, J. S. Tse, S. Desgreniers [et al.] // Phys. Chem. Miner. - 2021. - Vol. 48, Is. 10. - Ст. 36, DOI 10.1007/s00269-021-01160-8. - Cited References: 68. - This work was performed under the auspicious of the state assignment of IGM SB RAS supported by Ministry of Science and Higher Education of the Russian Federation. The Russian Foundation for Basic Research (project no.21-55-14001) is gratefully acknowledged. Authors thank S.V. Rashchenko for fruitful discussion on XRD diffraction patterns of the talc-water system. We thank SPring-8 Synchrotron Radiation Facilities and BLXU-10 beamline for providing the synchrotron beam-time. JST, SD and YP would like to thank Natural Science and Engineering Council Canada for the award of individual Discovery Grants . - ISSN 0342-1791. - ISSN 1432-2021
   Перевод заглавия: Рентгеноструктурное исследование хризотила в условиях высоких P – T: превращение в фазу 3,65 Å

РУБ Materials Science, Multidisciplinary + Mineralogy
Рубрики:
HIGH-PRESSURE STABILITY
HYDROUS MAGNESIUM SILICATES
SYSTEM MGO-SIO2-H2O MSH
Кл.слова (ненормированные):
Chrysotile -- Serpentine -- High pressure -- High temperature -- X-ray diffraction -- Synchrotron radiation
Аннотация: The behavior of chrysotile Mg3(Si2O5)(OH)4 in water medium at simultaneously high pressure and high temperature was studied by in situ synchrotron X-ray diffraction using a diamond anvil cell. In contrast to previous ‘dry’ experiments, chrysotile in water-saturated conditions undergoes two-phase transitions and exhibits higher thermal stability. At 260 °C / 3.7 GPa the initial chrysotile (phase I) transforms to the ‘chrysotile-like’ phase II, followed by the appearance of the ‘chrysotile-like’ phase III at 405 °C / 5.25 GPa. Phase III is characterized by enlarged interlayer distances, presumably resulting from the H2O intercalation into the interlayer space. During further compression, the ‘chrysotile-like’ phase III is decomposed to the 10 Å phase Mg3(Si4O10)(OH)2·xH2O, the 3.65 Å phase MgSi(OH)6, phase D, forsterite, enstatite and coesite or stishovite. The 3.65 Å phase appears at 8.8 GPa / 500 °C. The series of transformations leads to a water deficiency in the system, restricting the complete transformation from the 10 Å phase to the 3.65 Å phase. These data emphasize the crucial role of excess water in the stabilization of the high-pressure hydrous phases. The present study is the first in situ observation of sequential transformations of hydrous phases: serpentine → 10 Å phase → 3.65 Å phase, important as a potential water transport mechanism to the deep mantle.

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Держатели документа:
Russian Acad Sci, Sobolev Inst Geol & Mineral, Siberian Branch, Pr Koptyug 3, Novosibirsk 630090, Russia.
Univ Saskatchewan, Dept Phys, 116 Sci Pl, Saskatoon, SK S7N 5B2, Canada.
Univ Ottawa, Dept Phys, 150 Louis Pasteur, Ottawa, ON K1N 6N5, Canada.
Japan Synchrotron Radiat Res Inst, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan.
Univ Saskatchewan, Dept Geol Sci, 114 Sci Pl, Saskatoon, SK S7N 5E2, Canada.
Novosibirsk State Univ, Pirogov Str 1, Novosibirsk 630090, Russia.
FRC KSC SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.

Доп.точки доступа:
Goryainov, Sergey, V; Tse, John S.; Desgreniers, Serge; Kawaguchi, Saori, I; Pan, Yuanming; Likhacheva, Anna Yu; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ministry of Science and Higher Education of the Russian Federation; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [21-55-14001]; Natural Science and Engineering Council CanadaNatural Sciences and Engineering Research Council of Canada (NSERC)
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10.

    Part II. Nanobubbles around plasmonic nanoparticles in terms of modern simulation modeling: what makes them kill the malignant cells? / A. S. Kostyukov, I. L. Isaev, A. E. Ershov [et al.] // J. Phys. D. - 2022. - Vol. 55, Is. 17. - Ст. 175402, DOI 10.1088/1361-6463/ac4c1f. - Cited References: 49. - The research was supported by the Ministry of Science and High Education of Russian Federation (Project No. FSRZ-2020-0008), and was funded by RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, Project No. 20-42-240003 . - ISSN 0022-3727. - ISSN 1361-6463
   Перевод заглавия: Часть II. Нанопузырьки вокруг плазмонных наночастиц с точки зрения современного имитационного моделирования: что заставляет их убивать злокачественные клетки?

РУБ Physics, Applied
Рубрики:
STRESS WAVES
   LASER
   MEMBRANE
   DAMAGE
   DEATH
   LYSIS
Кл.слова (ненормированные):
photothermal effect -- plasmonic nanoparticle -- malignant cell membrane -- pulsed laser radiation -- finite elements analysis -- anticancer therapy -- aptamer
Аннотация: We have established numerically the physical pattern and conditions for formation of nanosized bubbles in aqueous medium around biocompatible plasmonic nanoparticles (NPs) selectively bound to the membrane of the malignant cells by means of DNA-aptamers under the action of picosecond laser radiation. The results obtained are based on the finite volume method and hydrodynamic models underlying the ANSYS Fluent package with extended capabilities. We have found the main features and previously unknown dominant factors of the damage effect on the cell membrane at the moment of the bubble nucleation around the plasmonic NPs of different types taking into account the influence of the closely located membrane. Information on the kinetics of spatial distribution of pressure, temperature and the relative proportion of vapor in the 'nanoparticle-membrane-medium' system have been obtained. The attention is drawn to the advantages of using biocompatible, perfectly absorbing core–shell plasmonic NPs for anti-tumor therapy characterized by an increased mechanical effect on malignant cell membranes at lower laser radiation intensity and the spectral position of their plasmon resonance (λ = 700 nm) in the hemoglobin transparency range. This ensures penetration of laser radiation deep into tissues. The paper is provided with an extensive review of key publications and the state-of-art in this area.

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Держатели документа:
Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Inst Computat Modelling, Siberian Branch, Krasnoyarsk 660036, Russia.
Fed Med Biol Agcy Russian Federat, Fed Siberian Res Clin Ctr, Krasnoyarsk 660037, Russia.
Russian Acad Sci, LV Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Kostyukov, A. S.; Isaev, I. L.; Ershov, A. E.; Gerasimov, V. S.; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Ministry of Science and High Education of Russian Federation [FSRZ-2020-0008]; RFBRRussian Foundation for Basic Research (RFBR); Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science [20-42-240003]
}
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