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1.
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
Материалы семинара
,
Материалы семинара
Доп.точки доступа:
Князев, Юрий Владимирович; EBS Workshop on Nuclear Resonance Scattering(2019 ; March. 11-12 ; Grenoble, France)
}
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2.
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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3.
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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4.
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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5.
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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6.
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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7.
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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8.
Small-angle scattering and
radiation
polarization by a stretched polymer film with nematic liquid crystal droplets having a single-domain structure / V. A. Loiko, A. V. Konkolovich, A. A. Miskevich [et al.]> // Opt. Spectrosc. - 2020. -
Vol. 128
,
Is. 3
. - P. 331-338,
DOI
10.1134/S0030400X20030121. - Cited References: 24. - This work was carried out within the framework of the agreement on interacademic collaboration between the National Academy of Sciences of Belarus and Siberian Branch of the Russian Academy of Sciences. It was supported by the Belarusian Republican Foundation for Fundamental Research (project no. F18RA-003). M.N. Krakhalev acknowledges the support of the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and Krasnoyarsk Krai Foundation of Science (grant no. 18-42-243006). . - ISSN 0030-400X. - ISSN 1562-6911
РУБ
Optics + Spectroscopy
Рубрики:
IONIC MODIFICATION
LIGHT
Кл.слова (ненормированные):
light scattering
--
radiation
polarization
--
liquid crystal
Аннотация:
The coefficient of directed transmittance of a stretched polymer-dispersed liquid crystal film with a defect-free single-domain liquid crystal droplet structure formed by a stretched surfactant-doped film and the polarization degree of forward-transmitted light in the visible and near-infrared spectrum ranges are studied. Results are presented for the 5CB, E7, and E44 nematic liquid crystals. Dependences of the transmission coefficient and polarizing ability of the film on the photodetector field of view are studied. Relationships allowing one to determine film parameters at which the transmission coefficient and polarizing ability of the films simultaneously reach values close to limit ones (0.5 and ±1.0, respectively) are obtained in the Foldy–Twersky and anomalous diffraction approximations.
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Публикация на русском языке
Малоугловое рассеяние и поляризация излучения вытянутой полимерной пленкой с каплями нематического жидкого кристалла, имеющими монодоменную структуру [Текст] / В. А. Лойко, А. В. Конколович, А. А. Мискевич, М. Н. Крахалев // Оптика и спектроскопия. - 2020. - Т. 128 Вып. 3. - С. 343-350
Держатели документа:
Natl Acad Sci Belarus, Stepanov Inst Phys, Minsk 220072, BELARUS.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Loiko, V. A.; Konkolovich, A. V.; Miskevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Belarusian Republican Foundation for Fundamental Research [F18RA-003]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk krai; Krasnoyarsk Krai Foundation of Science [18-42-243006]
}
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9.
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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11.
Part I. Nanobubbles
in pulsed laser fields for anticancer therapy: in search of adequate models and simulation approaches / A. S. Kostyukov, I. L. Isaev, A. E. Ershov [et al.]> // J. Phys. D. - 2022. -
Vol. 55
,
Is. 17
. - Ст. 175401,
DOI
10.1088/1361-6463/ac4c20. - Cited References: 99. - 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 Number 20-42-240003 . - ISSN 0022-3727. - ISSN 1361-6463
Перевод заглавия:
Часть I. Нанопузырьки в импульсных лазерных полях для противораковой терапии: в поисках адекватных моделей и вычислительных подходов
РУБ
Physics, Applied
Рубрики:
INDUCED CELL-LYSIS
GOLD NANOPARTICLES
SELECTIVE NANOPHOTOTHERMOLYSIS
Кл.слова (ненормированные):
photothermal effect
--
plasmonic nanoparticle
--
malignant cell membrane
--
pulsed laser
radiation
--
finite element analysis
--
anticancer therapy
Аннотация:
We numerically investigate the conditions for the laser-induced formation of nanobubbles in aqueous medium around plasmonic nanoparticles (NPs) bound to the malignant cell membranes that is considered as the method of their irreversible damage. We proposed employing the versatile and accessible simulation software as a research tool based on the finite volume method underlying the ANSYS Fluent package and supplemented with our user-defined functions that adapt it to solution of the stated problems. This adaptation allows to verify the model using experimental data for the same conditions. We determined the conditions for the pressure growth on the cell membrane at the initial moment of bubble formation significantly exceeding the threshold of irreversible damage. The model can be used for investigation of hydrodynamic effects accompanying irradiation of plasmonic NPs using both different types of pulsed lasers and ideally absorbing NPs with resonance in the hemoglobin spectral transparency range, as well as to uncover previously unknown effects. They include the conditions for localization of a damaging factor non-affecting the normal cells, the conditions for generation of ultrahigh pressure pulse that enables to damage the cell membrane and precedes formation of thin vapor shell around NPs, which, unlike large bubbles, requires registration using highly sensitive experimental measurements. An extensive overview of key publications summarizing the state-of-art in this area is presented.
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Держатели документа:
Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Inst Computat Modelling, Krasnoyarsk 660036, Russia.
Fed Med Biol Agcy Russian Federat, Fed Siberian Res Clin Ctr, Krasnoyarsk 660037, Russia.
Russian Acad Sci, Siberian Branch, Fed Res Ctr KSC, LV Kirensky Inst Phys, 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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12.
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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13.
Thermal influence in
the process of self-assembly of quantum dots by quasi-resonant laser
radiation
/ V. A. Tkachenko, A. S. Tsipotan, A. S. Aleksandrovsky, V. V. Slabko> //
Енисейская фотоника-2020 : тезисы докладов. - Красноярск : ИФ СО РАН, 2020. - P. 94. - Cited References: 3 . - ISBN 978-5-6042995-8-6
Материалы конференции
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Доп.точки доступа:
Tkachenko, V. A.; Tsipotan, A. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Slabko, V. V.; Слабко, Виталий Васильевич; Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Сибирский федеральный университет; "Енисейская фотоника", Всероссийская научная конференция с международным участием(1 ; 2020 ; сент. ; 14-19 ; Красноярск)
Нет сведений об экземплярах (Источник в БД не найден)
}
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14.
Small-angle scattering applications
to the analysis of aptamer structure and conformational changes / R. V. Moryachkov, V. N. Zabluda, A. N. Berlina [et al.]> //
AIP Conference Proceedings : book of abstracts. - 2020. -
Vol. 2299
. - Ст. 040002 ; Synchrotron and free electron laser
radiation
: generation and application (SFR-2020). - Novosibirsk. - P. 45-46,
DOI
10.1063/5.0030394. - Cited References: 40. - The reported study was funded by RFBR, project number 19-32-90266 (investigation of the structure changes). This work was financially supported by Russian Science Foundation (project # 19-44-02020, obtaining of the complexes of aptamer and lead ions). We acknowledge the European Synchrotron
Radiation
Facility for provision of synchrotron
radiation
facilities (experiment #MX-2039) and we would like to thank Bart Van Laer for assistance in using beamline BM29
Перевод заглавия:
Использование малоуглового рассеяния для анализа структуры и конформационных изменений аптамеров
Аннотация:
Aptamers, structured single-chain oligonucleotides, are promising tools for detection of a wide variety of compounds, from high to low molecular weight, and affecting on them. The aptamers that are most affine for a detectable compound are selected from the libraries of random sequences by the SELEX method (Systematic evolution of ligands by exponential enrichment). The reason why aptamers deserve a special consideration lies in the specific features of their structure and the mechanism of binding to their target. Aptamers can be exploited for metal-ion sensing, biosensing, drug delivery and other functions. To apply the oligonucleotides in the medicine, ecology, food production, agriculture, etc., we need to know how the aptamers bind to their targets, how they change their conformation upon specific binding and how the environment influences on the affinity of aptamers. Small-Angle X-ray scattering showed that the interaction of aptamers with heavy metal and other divalent ions proceeds according to different mechanisms, and the aptamers used undergo different conformational changes.
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Держатели документа:
Kirensky Institute of Physics, Akademgorodok 50, bld. 38, Krasnoyarsk, 660012, Russian Federation
Federal Research Center "Krasnoyarsk Science Center SB RAS", Akademgorodok 50, Krasnoyarsk, 660012, Russian Federation
A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow, 119071, Russian Federation
National Research Center “Kurchatov Institute”, Akademika Kurchatova pl. 1, Moscow, 123182, Russian Federation
Доп.точки доступа:
Moryachkov, R. V.; Морячков, Роман Владимирович; Zabluda, V. N.; Заблуда, Владимир Николаевич; Berlina, A. N.; Peters, G. S.; Kichkailo, A. S.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Internetional Conference on Synchrotron and Free Electron Laser
Radiation
: Generation and Application(2020 ; 13-16 July ; Novosibirsk)
}
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15.
Bulgakov, E. N.
Resonant binding of dielectric particles to a metal surface without plasmonics / E. Bulgakov, K. Pichugin, A. Sadreev> // Phys. Rev. A. - 2021. -
Vol. 103
,
Is. 5
. - Ст. L051501,
DOI
10.1103/PhysRevA.103.L051501. - Cited References: 36. - The work was supported by Russian Foundation for Basic Research Project No. 19-02-00055 . - ISSN 2469-9926. - ISSN 2469-9934
РУБ
Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
RADIATION
PRESSURE
OPTICAL BINDING
FORCES
MANIPULATION
Аннотация:
A high index dielectric spherical particle supports the high-Q resonant Mie modes that result in a regular series of sharp resonances in the
radiation
pressure. The presence of a perfectly conducting metal surface transforms the Mie modes into extremely high-Q magnetic bonding or electric antibonding modes for the close approach of a sphere to a surface. We show that an electromagnetic plane wave with normal incidence results in repulsive or attractive resonant optical forces relative to a metal for the excitation of electric bonding or magnetic antibonding resonant modes, respectively. A magnitude of resonant optical forces reaches the order of 1 nN of magnitude for micron-sized silicon particles and a power of light 1mW/μm2 that exceeds the gravitational force by four orders. However, what is the most remarkable is there are steady positions for a sphere between the pulling and pushing forces that give rise to the resonant binding of the sphere to a metal surface.
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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Russian Foundation for Basic Research ProjectRussian Foundation for Basic Research (RFBR) [19-02-00055]
}
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16.
Bulgakov, E. N.
Trapping of light with angular orbital momentum above the light cone in a periodic array of dielectric spheres / E. N. Bulgakov, A. F. Sadreev> // Adv. Electromagn. - 2017. -
Vol. 6
,
Is. 1
. - P. 1-10. - Cited References: 52. - The work was supported by Russian Science Foundation through grant 14-12-00266. We acknowledge discussions with D.N. Maksimov. . - ISSN 2119-0275
Кл.слова (ненормированные):
Scattering
--
Trapping of light
--
Radiation
Аннотация:
We consider bound states in the
radiation
continuum (BSC) above the light cone in an one-dimensional periodic array of dielectric spheres in air. The BSCs are classified by orbital angular momentum m, Bloch wave vector β directed along the array, and polarization. The most simple symmetry protected BSCs have m = 0, β = 0 and occur in a wide range of the radius of spheres and dielectric constant. More sophisticated BSCs with m ≠ 0, β = 0 exist only for a selected radius of the spheres at a fixed dielectric constant. We also show the existence of robust Bloch BSCs with β ≠ 0, m = 0. The BSCs with m = 0 can be easily detected by the collapse of Fano resonance in scattering of a plane wave. In response to a plane wave with circular polarization the BSCs with m ≠ 0 give rise to Poynting vector spiralling around the array.
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Держатели документа:
KirenskyInstitute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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17.
Bulgakov, E. N.
Bound states in the continuum with high orbital angular momentum in a dielectric rod with periodically modulated permittivity / E. N. Bulgakov, A. F. Sadreev> // Phys. Rev. A. - 2017. -
Vol. 96
,
Is. 1
. - Ст. 013841,
DOI
10.1103/PhysRevA.96.013841. - Cited References:38. - We acknowledge discussions with D. N. Maksimov and A. S. Aleksandrovsky. This work was partially supported by Ministry of Education and Science of Russian Federation (State Contract No. N 3.1845.2017) and RFBR Grant No. 16-02-00314. . - ISSN 2469-9926. - ISSN 2469-9934
РУБ
Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
PHOTONIC CRYSTAL SLABS
LIGHT-CONE
RESONANCES
SPHERES
RADIATION
Аннотация:
We report bound states in the
radiation
continuum (BICs) in a single infinitely long dielectric rod with periodically stepwise modulated permittivity alternating from ε1 to ε2. For ε2 = 1 in air the rod is equivalent to a stack of dielectric disks with permittivity ε1. Because of rotational and translational symmetries the BICs are classified by orbital angular momentum m and the Bloch wave vector beta directed along the rod. For m = 0 and β = 0 the symmetry protected BICs have definite polarization and occur in a wide range of the radius of the rod and the dielectric permittivities. More involved BICs with m ≠ 0, β = 0 exist only for a selected radius of the rod at a fixed dielectric constant. The existence of robust Bloch BICs with β ≠ 0, m = 0 is demonstrated. Asymptotic limits to a homogeneous rod and to very thin disks are also considered.
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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Ministry of Education and Science of Russian Federation [N 3.1845.2017]; RFBR [16-02-00314]
}
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18.
Three-dimensional model of
quantum dots'' self-assembly under the action of laser
radiation
/ V. A. Tkachenko [et al.]> // Комп. оптика. - 2017. -
Т. 41
,
№ 4
. - С. 577-580,
DOI
10.18287/2412-6179-2017-41-4-577-580. - Библиогр.: 14. - The work was funded by the Russian Foundation for Basic Research (RFBR) and Krasnoyarsk Krai administration under research project No. 16-42-240410r_a, RFBR research project No. 16-32-00129 and by the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU). . - ISSN 0134-2452
Кл.слова (ненормированные):
Nanostructure fabrication
--
Plasmonics
--
Optical tweezers or optical manipulation
Аннотация:
This study considered a process of quantum dots' self-assembly into nanostructure arrays with predefined geometry, which proceeds in the external resonant laser field. We considered the simplest case of assembling a stable structure of two particles. The problem was solved numerically using a three-dimensional model of Brownian dynamics. The idea of the method is that the attraction of the dots occurs due to the interaction of resonantly induced dipole moments, with the dots being then captured by the Van der Waals force. Finally, a three-dimensional model was considered; the average nanoparticle aggregation time as a function of the laser
radiation
wavelength was calculated; the probability of such structures' being formed was estimated for the calculated average aggregation time and for the laser pulse duration used in the experiment. The wavelength of the maximum probability was found to be shifted from the single particle resonance wavelength of 525 nm to the red area of 535 nm, which is in qualitative agreement with the redshift of the resonance wavelength of interacting particles.
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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences
Siberian Federal University
Доп.точки доступа:
Tkachenko, V. A.; Tsipotan, A. S.; Slabko, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
}
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19.
Restructuring of plasmonic
nanoparticle aggregates with arbitrary particle size distribution in pulsed laser fields / A. E. Ershov [et al.]> // Chin. Phys. B. - 2016. -
Vol. 25
,
Is. 11
. - Ст. 117806,
DOI
10.1088/1674-1056/25/11/117806. - Cited References: 47. - This work was performed within the state contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2016 (Reference number 1792) and SB RAS Program No II.2P (0358-2015-0010). Numerical computations were performed on the cluster MVS-1000 M of the Institute of computational modeling SB RAS. . - ISSN 1674-1056
Кл.слова (ненормированные):
optodynamics
--
nanoparticle
--
surface plasmon
--
laser
radiation
Аннотация:
We have studied processes of interaction of pulsed laser
radiation
with resonant groups of plasmonic nanoparticles (resonant domains) in large colloidal nanoparticle aggregates having different interparticle gaps and particle size distributions. These processes are responsible for the origin of nonlinear optical effects and photochromic reactions in multiparticle aggregates. To describe photo-induced transformations in resonant domains and alterations in their absorption spectra remaining after the pulse action, we introduce the factor of spectral photomodification. Based on calculation of changes in thermodynamic, mechanical, and optical characteristics of the domains, the histograms of the spectrum photomodification factor have been obtained for various interparticle gaps, an average particle size, and the degree of polydispersity. Variations in spectra have been analyzed depending on the intensity of laser
radiation
and various combinations of size characteristics of domains. The obtained results can be used to predict manifestation of photochromic effects in composite materials containing different plasmonic nanoparticle aggregates in pulsed laser fields. © 2016 Chinese Physical Society and IOP Publishing Ltd.
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Держатели документа:
Institute of Computational Modeling, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ershov, A. E.; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.
}
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20.
RESONANCE OF THE
AP-CONVERSION OF GAMMA=1.06 MKM
RADIATION
IN RUBIDIUM VAPOR / V. A. KIYASHKO [и др.]> // Zhurnal Tek. Fiz. - 1982. -
Vol. 52
,
Is. 11
. - P. 2286-2288. - Cited References: 7 . - ISSN 0044-4642
РУБ
Physics, Applied
WOS
Доп.точки доступа:
KIYASHKO, V. A.; POPOV, A. K.; TIMOFEEV, V. P.; YUROV, G. V.
}
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