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Magnetic properties of the DyMn2O5-Mn3O4 nanoparticle composite / G. S. Patrin, M. M. Mataev, M. R. Abdraimova [et al.] // Tech. Phys. - 2021. - Vol. 66, Is. 4. - P. 635-641, DOI 10.1134/S1063784221040137. - Cited References: 34. - This study was supported by the Ministry of Education and Science of the Republic of Kazakhstan (project no. 05130165) and within the framework of a state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme no. FSRZ-2020-0011) in the framework of the Cooperation Agreement between Siberian Federal University, Kirensky Institute of Physics, and Kazakh National Women's Teacher Training University . - ISSN 1063-7842. - ISSN 1090-6525

РУБ Physics, Applied
Рубрики:
CRYSTAL-STRUCTURE
Аннотация: The magnetic and resonance properties of the DyMn2O5–Mn3O4 nanoparticle composite have been experimentally investigated. Two magnetic transitions at temperatures of T1 ≈ 65 K and T2 ≈ 230 K have been established; the T1 value differs from the temperatures of the transitions in the initial materials, which has been attributed to the interparticle interactions. Temperature T2 corresponds to the DyMnO3 impurity phase (1 at %). Three microwave absorption peaks have been observed in the magnetic resonance spectrum, which is explained within the model of a magnetically two-phase system. One resonance is attributed to Mn3O4, and the other two peaks are attributed to an ensemble of highly anisotropic DyMn2O5 particles with a random distribution of anisotropy axes.

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Публикация на русском языке Магнитные свойства композита частиц DyMn2O5–Mn3O4 [Текст] / Г. С. Патрин, М. М. Матаев, М. Р. Абдраймова [и др.] // Журн. техн. физ. - 2021. - Т. 91 Вып. 4. - С. 620-626

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Kazakh Natl Womens Teacher Training Univ, Alma Ata 050000, Kazakhstan.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Karaganda State Univ, Karaganda 100028, Kazakhstan.

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Mataev, M. M.; Abdraimova, M. R.; Tursinova, Zh. I.; Kezdikbaeva, A. T.; Shiyan, Ya. G.; Шиян, Ярослав Германович; Plekhanov, V. G.; Ministry of Education and Science of the Republic of KazakhstanGovernment of the Republic of KazakhstanMinistry of Education and Science of the Republic of Kazakhstan [05130165]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]
}
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    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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    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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Electron magnetic resonance and magnetooptical studies of nanoparticle-containing borate glasses / J. Kliava [et al.] // Journal of Magnetism and Magnetic Materials. - 2011. - Vol. 323, Is. 5. - P. 451-460, DOI 10.1016/j.jmmm.2010.09.045. - Cited Reference Count: 40. - RFBRRussian Foundation for Basic Research (RFBR) [07-02-92174]; CNRSCentre National de la Recherche Scientifique (CNRS)European Commission [07-02-92174]; Russian Federal Program [FCP NK-209P/GK P1227], This work was supported in part by RFBR-CNRS joint project, Grant no. 07-02-92174 and by the Russian Federal Program, project FCP NK-209P/GK P1227. It is a pleasure to thank I. Bruckental and Y. Yeshurun for the magnetization measurements. . - ISSN 0304-8853

ГРНТИ

29.19

Кл.слова (ненормированные):
borate glasses -- Electron magnetic resonance -- magnetic nanoparticles -- magnetooptics
Аннотация: We report electron magnetic resonance (EMR) and magnetooptical studies of borate glasses of molar composition 22.5K2O22.5Al2O 355B2O3 co-doped with low concentrations of Fe2O3

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Держатели документа:
CEMHTI,UPR3079 CNRS et Universit d'Orlans
CPMOH,UMR 5798,Universit Bordeaux 1-CNRS
CRMD,UMR 6619,Universit d'Orlans-CNRS
L.V. Kirensky Institute of Physics,Siberian Branch of the RAS
Synchrotron SOLEIL,L'Orme des Merisiers

Доп.точки доступа:
Kliava, J.; Edelman, I.; Ivanova, O.; Ivantsov, R.; Petrakovskaja, E. A.; Hennet, L.; Thiaudire, D.; Saboungi, M. L.
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Role of the surface effects and interparticle magnetic interactions in the temperature evolution of magnetic resonance spectra of ferrihydrite nanoparticle ensembles / D. A. Balaev, S. V. Stolyar, Y. V. Knyazev [et al.] // Results Phys. - 2022. - Vol. 35. - Ст. 105340, DOI 10.1016/j.rinp.2022.105340. - Cited References: 119. - Authors thank to A.D. Balaev, S.V. Komogortsev for fruitful discussions and M.N. Volochaev for TEM studies. The TEM study and measurements of X-band FMR spectra were carried out on the equipment of the Krasnoyarsk Territorial Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. This study was supported by the Russian Science Foundation, project no. 21-72-00025 (https://rscf.ru/project/21-72-00025/) "Tuning the Magnetic Properties of Ultrafine Biocompatible Ferrihydrite Nanoparticles through Interparticle Interactions" . - ISSN 2211-3797
Кл.слова (ненормированные):
Ferrihydrite nanoparticles -- Superparamagnetism -- Interparticle magnetic interactions -- Ferromagnetic resonance
Аннотация: Ferrihydrite is characterized by the antiferromagnetic ordering and, in ferrihydrite nanoparticles, as in nanoparticles of any antiferromagnetic material, an uncompensated magnetic moment is formed. We report on the investigations of ferrihydrite powder systems with an average particle size of ∼ 2.5 nm obtained (i) as a product of the vital activity of bacteria (sample FH-bact) and (ii) by a chemical method (sample FH-chem). In the first approximation, these samples can be considered to be identical. However, in sample FH-chem, particles contact directly, while in sample FH-bact, they have organic shells; therefore, the interparticle magnetic interactions in these samples have different degrees. The main goal of this work has been to establish the effects of the interparticle magnetic interactions and individual characteristics of ferrihydrite nanoparticles on ferromagnetic resonance (FMR) spectra. The FMR spectra have been measured at different (9.4–75 GHz) frequencies in a wide temperature range. It has been found that, at low temperatures, the field-frequency dependence ν(HR) of the investigated systems has a gap ν/γ = HR + HA, where HR is the resonance field and HA is the induced anisotropy, which decreases with increasing temperature. To estimate a degree of the effect of interparticle interactions on the results obtained and to correctly determine the temperature range of the superparamagnetic (or blocked) state, the static magnetic measurement and Mössbauer spectroscopy data have been obtained and analyzed. It has been shown that the most striking feature of the FMR spectra - a gap in the field-frequency dependences - is a manifestation of individual characteristics of ferrihydrite nanoparticles. The induced anisotropy is caused by freezing of a subsystem of surface spins and its coupling with the particle core, which is observed in both samples at a temperature of ∼80 K. The temperature range (below 80 K) in which the gap exists corresponds to the blocked state in the FMR technique. In sample FH-bact, the ratio between the FMR parameters HA and linewidth ΔH obeys the standard expression HA ∼ (ΔH)3. In sample FH-chem, however, the interparticle magnetic interactions dramatically affect the behavior of parameters of the FMR spectra, which change nonmonotonically upon temperature variation. This fact is attributed to the collective freezing of the magnetic moments of particles under the conditions of sufficiently strong interactions, which follows from the temperature dependence of the particle magnetic moment relaxation time determined from the Mössbauer spectroscopy and static magnetometry data obtained in weak magnetic fields.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, bld. 38, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodniy 79, Krasnoyarsk, 660041, Russian Federation
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Stolyar, S. V.; Столяр, Сергей Викторович; Knyazev, Yu. V.; Князев, Юрий Владимирович; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Pankrats, A. I.; Панкрац, Анатолий Иванович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Krasikov, A. A.; Красиков, Александр Александрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Ladygina, V. P.; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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Magnetic properties and morphology of ferrite nanoparticle dispersed in glass [Text] / I. Edelman., O. Ivanova, R. Ivantsov [et al.] // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 23OR-B-9. - P. 281-282

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Доп.точки доступа:
Edelman., I.; Ivanova, O.; Ivantsov, R.; Velikanov, D.; Zubavichus, Y.; Veligzhanin, A.; Curely, J.; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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    Magnetooptical Studies of Nanoparticle-Containing Borate Glasses / I. S. Edelman, O. S. Ivanova, R. D. Ivantsov // Solid State Phenomena. - 2011. - Vol. 168-169. - P. 525-528, DOI 10.4028/www.scientific.net/SSP.168-169.525. - Cited Reference Count: 9 . - ISBN 1012-0394
Рубрики:
Materials Science, Multidisciplinary
   Physics, Condensed Matter
Кл.слова (ненормированные):
magnetic nanoparticles -- oxide glasses -- faraday rotation -- magnetic circular dichroism
Аннотация: Faraday rotation (FR) and magnetic circular dichroism (MCD) of nanocomposite structures based on potassium-aluminum-germanium-boron glasses co-doped with Fe and rare earth (RE) or Y+Bi oxides have been studied. Formation of magnetic nanoparticles as a result of the glass heat treatment ensures them magnetic and magneto-optical properties typical of magnetically ordered substances. At the same time, glasses keep transparence in visual spectral range owing to low paramagnetic oxides concentration. FR and MCD spectra of the heat treated glasses are shown to be very close to those of gamma-Fe(2)O(3) and practically independent of the RE element nature for the light wave energies lower than 22000 cm(-1). For higher energies, the MCD spectrum shape depends strongly an RE what evidences the different origin of magneto-optical effects in two spectral ranges.

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Держатели документа:
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Ivanova, O. S.; Иванова, Оксана Станиславовна; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg)
}
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    Antimicrobial properties of nanofiltration membranes modified with silver nanoparticles / R. Khaydarov, O. Gapurova, M. Abdukhakimov [et al.] // Emerg. Mater. - 2022. - Vol. 5, Is. 5. - P. 1477-1483, DOI 10.1007/s42247-021-00330-2. - Cited References: 31. - The SEM and TEM analysis was carried out in the SFU Joint Scientific Center under the support of the Ministry of Science and Higher Education of the Russian Federation (#FSRZ-2020-0011) . - ISSN 2522-5731. - ISSN 2522-574X
   Перевод заглавия: Антимикробные свойства нанофильтрационных мембран, модифицированных наночастицами серебра

РУБ Materials Science, Multidisciplinary

Кл.слова (ненормированные):
Nanofiltration -- Membrane -- Silver -- Nanoparticle -- Antimicrobial -- Biofouling -- Polyhexamethylene biguanide
Аннотация: The growth of bacteria and fungi on a nanofiltration (NF) membrane is known to reduce its permeability and lifetime and increase overall energy use. Over the last decade, application of silver nanoparticles (AgNPs) has shown to present a strong potential in preventing biofouling of NF membrane processes. The paper deals with a novel facile method developed to in situ incorporate nanosilver stabilized with the polyhexamethylene biguanide hydrochloride (PHMB) onto the commercial NF membrane surface. The scanning electron microscopy (SEM) investigations confirmed a uniform distribution of AgNPs on the surface of NF membrane although AgNPs tend to agglomerate into nano-sized colloidal clusters. Our results showed that AgNPs had little impact on the performance of the NF membrane, including salt rejection and water permeation properties. To evaluate the antibacterial properties of nanocomposite membranes, a "time-kill" analysis, a microbiological technique for measuring the change in a population of microorganisms under the impact of a specific sample, has been used against representatives of Gram-positive and Gram-negative bacteria. Inductively coupled mass spectrometry (ICP-MS) was used to study kinetics of Ag release from modified NF membrane. Leaching rates of Ag were low that will possibly result in long-established antimicrobial and antifungal properties. The present research offers a potential for its further use as a new type of modified NF membrane mitigating biofouling.

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Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan.
JSS Acad Higher Educ & Res, Dept Pharmacol, JSS Coll Pharm, Ooty 643001, Tamil Nadu, India.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 5038, Russia.
Fed Res Ctr KSC SB RAS, Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Khaydarov, R.; Gapurova, O.; Abdukhakimov, M.; Sadikov, I.; Garipov, I.; Krishnamurthy, P. T.; Zharkov, S. M.; Жарков, Сергей Михайлович; Zeer, G. M.; Зеер, Галина М.; Abolentseva, P. A.; Prudnikova, S. V.; Evgrafova, S. Y.; SFU Joint Scientific Center; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]
}
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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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10.

Engineering novel tunable optical high-Q nanoparticle array filters for a wide range of wavelengths / A. D. Utyushev, I. L. Isaev, V. S. Gerasimov [et al.] // Opt. Express. - 2020. - Vol. 28, Is. 2. - P. 1426-1438, DOI 10.1364/OE.28.001426. - Cited References: 62. - The reported study was funded by the Russian Science Foundation, project No. 18-13-00363; the grant of the President of Russian Federation for young scientists No. 075-15-2019-676 (calculations of the electromagnetic field configurations in NPs array) . - ISSN 1094-4087
Рубрики:
Nanophotonics, Metamaterials, and Photonic Crystals
Аннотация: The interaction of non-monochromatic radiation with arrays comprising plasmonic and dielectric nanoparticles has been studied using the finite-difference time-domain electrodynamics method. It is shown that LiNbO3, TiO2, GaAs, Si, and Ge all-dielectric nanoparticle arrays can provide a complete selective reflection of an incident plane wave within a narrow spectral line of collective lattice resonance with a Q-factor of 103 or larger at various spectral ranges, while plasmonic refractory TiN and chemically stable Au nanoparticle arrays provide high-Q resonances with moderate reflectivity. Arrays with fixed dimensional parameters make it possible to fine-tune the position of a selected resonant spectral line by tilting the array relative to the direction of the incident radiation. These effects provide grounds for engineering novel selective tunable optical high-Q filters in a wide range of wavelengths, from visible to middle-IR.

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Держатели документа:
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian State University of Science and Technology, 660014 Krasnoyarsk, Russia
Institute of Computational Modeling, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Federal Siberian Research Clinical Center under FMBA of Russia, Krasnoyarsk 660037, Russia
Division of Theoretical Chemistry and Biology, Royal Institute of Technology, SE-100 44 Stockholm, Sweden
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
The Institute of Optics, University of Rochester, Rochester, NY 14627, USA

Доп.точки доступа:
Utyushev, A. D.; Isaev, I. L.; Gerasimov, V. S.; Ershov, A. E.; Zakomirnyi, V. I.; Закомирный, Вадим Игоревич; Rasskazov, I. L.; Polyutov, S. P.; Полютов, Сергей Петрович; Ågren, H.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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11.

Physical principles of the formation of a nanoparticle electric double layer in metal hydrosols / A. P. Gavrilyuk [et al.] // Colloid Polym. Sci. - 2020. - Vol. 298, Is. 1. - P. 1-7, DOI 10.1007/s00396-019-04573-8. - Cited References: 25. - The reported research was funded by the Russian Foundation for Basic Research and the government of the Krasnoyarsk territory, Krasnoyarsk Regional Fund of Science, grant No 18-42-243023, the RF Ministry of Education and Science, the State contract with Siberian Federal University for scientific research in 2017–2019. . - ISSN 0303-402X. - ISSN 1435-1536
Кл.слова (ненормированные):
Nanoparticle -- Adsorption layer -- Elastic deformation -- Coagulation kinetics -- Elasticity modulus
Аннотация: The Brownian dynamics method is employed to study the formation of an electrical double layer (EDL) on the metal nanoparticle (NP) surface in hydrosols during adsorption of electrolyte ions from the interparticle medium. Also studied is the charge accumulation by NPs in the Stern layer. To simulate the process of the formation of EDL, we took into account the effect of image forces and specific adsorption, dissipative and random forces, and the degree of hydration of adsorbed ions on the EDL structure. The employed model makes it possible to determine the charge of NPs and the structure of EDL. For the first time, the charge of both the diffuse part of EDL and the dense Stern layer has been determined. A decrease in the electrolyte concentration (below c ˂ 0.1 mol/l) has been found to result in dramatic changes in the formation of the Stern layer.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Siberian State University of Science and Technology, Krasnoyarsk, Russia

Доп.точки доступа:
Gavrilyuk, A. P.; Isaev, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Karpov, S. V.; Карпов, Сергей Васильевич
}
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12.

Collective lattice resonances in all-dielectric nanostructures under oblique incidence / A. D. Utyushev, V. I. Zakomirnyi, A. E. Ershov [et al.] // Photonics. - 2020. - Vol. 7, Is. 2. - Ст. 24, DOI 10.3390/PHOTONICS7020024. - Cited References: 70. - This research was funded by the RF Ministry of Science and Higher Education, the State contract with Siberian Federal University for scientific research and Russian Science Foundation project 19-72-00066 (investigation of finite size effects) . - ISSN 2304-6732
Кл.слова (ненормированные):
Collective lattice resonance -- Nanoparticle -- All-dielectric nanophotonics -- Mie resonance
Аннотация: Collective lattice resonances (CLRs) emerging under oblique incidence in 2D finite-size arrays of Si nanospheres have been studied with the coupled dipole model. We show that hybridization between the Mie resonances localized on a single nanoparticle and angle-dependent grating Wood-Rayleigh anomalies allows for the efficient tuning of CLRs across the visible spectrum. Complex nature of CLRs in arrays of dielectric particles with both electric dipole (ED) and magnetic dipole (MD) resonances paves a way for a selective and flexible tuning of either ED or MD CLR by an appropriate variation of the angle of incidence. The importance of the finite-size effects, which are especially pronounced for CLRs emerging for high diffraction orders under an oblique incidence has been also discussed.

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Держатели документа:
Department of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Space Materials and Technology, Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
The Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Доп.точки доступа:
Utyushev, A. D.; Zakomirnyi, V. I.; Ershov, A. E.; Gerasimov, V. S.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.
}
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13.

Trimetallic magnetite-Ti-Au nanoparticle formation: A theoretical approach / A. S. Fedorov, E. A. Kovaleva, A. E. Sokolov [et al.] // Mater. Chem. Phys. - 2021. - Vol. 271. - Ст. 124847, DOI 10.1016/j.matchemphys.2021.124847. - Cited References: 46. - The reported study was funded by Joint Research Project of Russian Foundation for Basic Research # 19-52-52002 and Ministry of Science and Technology, Taiwan MOST # 109-2112-M-153-003 and # 108-2923-M-153-001-MY3 . - ISSN 0254-0584
Кл.слова (ненормированные):
Magnetite -- Gold core-shell nanoparticles -- DFT calculations -- Magnetite -- Nanomedicine
Аннотация: Geometric, electronic and magnetic structure of planar slabs consisting of magnetite Fe3O4, titanium and gold layers are investigated by DFT-GGA calculations. It is assumed that these slabs can be used to simulate the upper layers of magnetite nanoparticles covered with an intermediate layer of titanium and a gold layer on the surface. Specific energies and spreading parameters (wettability) of the magnetite-gold, magnetite-titanium and titanium-gold interfaces are calculated. The specific energy and spreading parameter of the magnetite-gold interface is found to be negative, while these values of the magnetite-titanium (for thin Ti layer) and magnetite-titan-gold interfaces are significantly positive. This allows us to hope that the intermediate thin layer of titanium at the boundary between the surface of the magnetite nanoparticle and the gold layer stabilizes this three-layer structure and allows obtaining magnetite nanoparticles covered with continuous gold coating.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Tomsk State University, Tomsk, 634050, Russian Federation
National Pingtung University, Pingtung City, Pingtung County 90003, Taiwan

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Kovaleva, E. A.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Visotin, M. A.; Высотин, Максим Александрович; Lin, C. R.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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14.

    Multipolar lattice resonances in plasmonic finite-size metasurfaces / A. S. Kostyukov, I. L. Rasskazov, V. S. Gerasimov [et al.] // Photonics. - 2021. - Vol. 8, Is. 4. - Ст. 109, DOI 10.3390/photonics8040109. - Cited References: 66. - The reported study was funded by the Russian Science Foundation project number 19-72-00066 . - ISSN 2304-6732
   Перевод заглавия: Мультипольные решеточные резонансы в плазмонных метаповерхностях конечных размеров

РУБ Optics

Кл.слова (ненормированные):
lattice resonance -- plasmonics -- multipoles -- nanoparticle
Аннотация: Collective lattice resonances in regular arrays of plasmonic nanoparticles have attracted much attention due to a large number of applications in optics and photonics. Most of the research in this field is concentrated on the electric dipolar lattice resonances, leaving higher-order multipolar lattice resonances in plasmonic nanostructures relatively unexplored. Just a few works report exceptionally high-Q multipolar lattice resonances in plasmonic arrays, but only with infinite extent (i.e., perfectly periodic). In this work, we comprehensively study multipolar collective lattice resonances both in finite and in infinite arrays of Au and Al plasmonic nanoparticles using a rigorous theoretical treatment. It is shown that multipolar lattice resonances in the relatively large (up to 6400 nanoparticles) finite arrays exhibit broader full width at half maximum (FWHM) compared to similar resonances in the infinite arrays. We argue that our results are of particular importance for the practical implementation of multipolar lattice resonances in different photonics applications.

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Держатели документа:
Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, Russia.
Univ Rochester, Inst Opt, Rochester, NY 14627 USA.
Russian Acad Sci, Siberian Branch, Inst Computat Modelling, Krasnoyarsk 660036, Russia.
Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Kostyukov, Artem S.; Rasskazov, Ilia L.; Gerasimov, Valeriy S.; Polyutov, Sergey P.; Karpov, S. V.; Карпов, Сергей Васильевич; Ershov, Alexander E.; Russian Science FoundationRussian Science Foundation (RSF) [19-72-00066]
}
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15.

Features of the quasi-static and dynamic magnetization switching in NiO nanoparticles: Manifestation of the interaction between magnetic subsystems in antiferromagnetic nanoparticles / D. A. Balaev, A. A. Krasikov, S. I. Popkov [et al.] // J. Magn. Magn. Mater. - 2020. - Vol. 515. - Ст. 167307, DOI 10.1016/j.jmmm.2020.167307. - Cited References: 89. - We are grateful to A.D. Balaev for fruitful discussions. The TEM study and magnetic measurements using a PPMS-6000 facility were carried out on the equipment of the Krasnoyarsk Territorial Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences . - ISSN 0304-8853
Кл.слова (ненормированные):
Antiferromagnetic nanoparticle -- Dynamic magnetization -- Irreversible magnetization -- Magnetic subsystems -- Magnetization switching -- Quasi-static conditions -- Sub-micron particles -- Universal parameters
Аннотация: We report on the investigations of a system of 8-nm NiO particles representing antiferromagnetic (AFM) materials, which are weak magnetic in the form of submicron particles, but can be considered to be magnetoactive in the form of nanoparticles due to the formation of the uncompensated magnetic moment in them. The regularities of the behavior of magnetization switching in AFM nanoparticles are established by studying the magnetic hysteresis loops under standard quasi-static conditions and in a quasi-sinusoidal pulsed field of up to 130 kOe with pulse lengths of 4–16 ms. The magnetic hysteresis loops are characterized by the strong fields of the irreversible magnetization behavior, which is especially pronounced upon pulsed field-induced magnetization switching. Under the pulsed field-induced magnetization switching conditions, which are analogous to the dynamic magnetic hysteresis, the coercivity increases with an increase in the maximum applied field H0 and a decrease in the pulse length. This behavior is explained by considering the flipping of magnetic moments of particles in an external ac magnetic field; however, in contrast to the case of single-domain ferro- and ferrimagnetic particles, the external field variation rate dH/dt is not a universal parameter uniquely determining the coercivity. At the dynamic magnetization switching in AFM nanoparticles, the H0 value plays a much more important role. The results obtained are indicative of the complex dynamics of the interaction between magnetic subsystems formed in AFM nanoparticles.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences”, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Semenov, S. V.; Семёнов, Сергей Васильевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kirillov, V. L.; Martyanov, O. N.
}
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16.

The model of resonant domain of metal nanoparticle aggregates in pulsed laser fields / A. P. Gavrilyuk, S. V. Karpov // Proceedings of SPIE - The International Society for Optical Engineering / sponsors: SPIE Russia Chapter, National Academy of Sciences, Belarus, Russian Academy of Sciences, Belarus Foundation for Basic Research, Russian Physical Society ; ICONO 2007: Novel Photonics Materials; Optics and Optical Diagnostics of Nanostructures (2007 ; 28.05 - 01.06 ; Минск) : S P I E - International Society for Optical Engineering, 2007. - 6728. - С. 67281T, DOI 10.1117/12.752386 . - ISBN 0819468851

ГРНТИ

31.15

РИНЦ,
Источник статьи
Держатели документа:
Institute of Computational Modeling,Russian Academy of Science
Institute of Physics,Russian Academy of Science
Доп.точки доступа:
sponsors: SPIE Russia Chapter, National Academy of Sciences, Belarus, Russian Academy of Sciences, Belarus Foundation for Basic Research, Russian Physical Society; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; ICONO 2007: Novel Photonics Materials; Optics and Optical Diagnostics of Nanostructures(2007 ; 28.05 - 01.06 ; Минск)
Нет сведений об экземплярах (Источник в БД не найден)
}
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17.

Processes in Resonant Domains of Metal Nanoparticle Aggregates and Optical Nonlinearity of Aggregates in Pulsed Laser Fields [Текст] / A. P. Gavrilyuk, S. V. Karpov // arXiv. - 2008. - Ст. 0808.2355

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Доп.точки доступа:
Gavrilyuk, A.P.; Karpov, S.V.
}
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18.

Magneto-optical properties of nanoparticle dispersions based on Fe3O4, obtained by pulse laser ablation in a liquid / O. V. Solodova, A. E. Sokolov, O. S. Ivanova [et al.] // Phys. Solid State. - 2022. - Vol. 64, Is. 14. - P. 2292-2299, DOI 10.21883/PSS.2022.14.54331.147. - Cited References: 39. - The authors would like to thank Dr. Phys.-Math. Sci., Professor I.S. Edelman for participating in the discussion of the study results and significant comments when writing the article. This study was supported by the Russian Foundation for Basic Research, grant No. 19-52-52002 . - ISSN 1063-7834. - ISSN 1090-6460
Кл.слова (ненормированные):
pulsed laser ablation -- nanoparticles -- colloidal solutions -- magnetite -- magnetic circular dichroism
Аннотация: The structure, optical and magneto-optical properties of colloidal solutions of iron oxide nanoparticles obtained by pulsed ablation in distilled water, both without additives and with various functional additives: gold-hydrochloric acid, silicon oxide, and polyvinylpyrrolidone, have been studied. It is shown that the main magnetic phase is magnetite Fe3O4. The size distribution of nanoparticles and the degree of their agglomeration depend on the additives. In the absence of the latter, a very wide of size distributions and strong agglomeration of particles are observed. The narrowest distribution curve with a maximum corresponding to ~7 nm and an almost complete absence of agglomeration are observed for particles synthesized in the presence of polyvinylpyrrolidone. The shape of the spectral dependence of magnetic circular dichroism, which generally corresponds to the spectrum of magnetite, undergoes some modifications for various additives, which is associated with defects in the distribution of iron ions between different positions in the crystal.

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Публикация на русском языке Магнитооптические свойства дисперсий наночастиц на основе Fe3O4, полученных методом импульсной лазерной абляции в жидкости [Текст] / О. В. Солодова, А. Э. Соколов, О. С. Иванова [и др.] // Физ. тверд. тела. - 2021. - Т. 63 Вып. 12. - С. 2061-2069

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia
Immanuel Kant Baltic Federal University, Kaliningrad, Russia
Tomsk State University, Tomsk, Russia

Доп.точки доступа:
Solodova, O. V.; Солодова, О. В.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Ivanova, O. S.; Иванова, Оксана Станиславовна; Volochaev, M. N.; Волочаев, Михаил Николаевич; Lapin, I. N.; Goncharova, D. A.; Svetlichnyi, V. A.
}
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19.

Interparticle magnetic interactions and magnetic field dependence of superparamagnetic blocking temperature in ferrihydrite nanoparticle powder systems / A. A. Krasikov, Yu. V. Knyazev, D. A. Balaev [et al.] // Phys. B: Condens. Matter. - 2023. - Vol. 660. - Ст. 414901, DOI 10.1016/j.physb.2023.414901. - Cited References: 66. - This study was supported by his work was supported by the Russian Science Foundation, project no. 22-72-00134 . - ISSN 0921-4526. - ISSN 1873-2135
Кл.слова (ненормированные):
Ferrihydrite nanoparticles -- Interparticle magnetic interactions -- Superparamagnetic blocking temperature -- Coating -- Arabinogalactan
Аннотация: In this study, nanoparticles of initial synthetic ferrihydrite have been coated with arabinogalactan. The synthesized series of samples with different degrees of coverage of particles has been characterized by X-ray photoelectron spectroscopy, Mossbauer spectroscopy, transmission electron microscopy and magnetometry. The superparamagnetic blocking temperature decreases monotonically with an increase in the degree of coverage of ferrihydrite particles, which is unambiguously related to the different role of the interparticle magnetic interactions in the investigated powder systems. Analysis of the field dependence of the blocking temperature within the random anisotropy model has shown that an increase in the degree of coverage of ferrihydrite particles leads to a decrease in the size of a cluster in which the behaviors of the nanoparticle magnetic moments are correlated. The results obtained have shown the possibility of effective control of the strength of magnetic interparticle interactions in powder ferrihydrite systems by coating nanoparticles with arabinogalactan.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036 Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036 Russia

Доп.точки доступа:
Krasikov, A. A.; Красиков, Александр Александрович; Knyazev, Yu. V.; Князев, Юрий Владимирович; Balaev, D. A.; Балаев, Дмитрий Александрович; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Stolyar, S. V.; Столяр, Сергей Викторович; Mikhlin, Yu. L.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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20.

Intense charge transfer plasmons in golden nanoparticle dimers connected by conductive molecular linkers / A. S. Fedorov, M. A. Visotin, A. V. Lukyanenko [et al.] // J. Chem. Phys. - 2024. - Vol. 160, Is. 8. - Ст. 084110, DOI 10.1063/5.0183334. - Cited References: 52. - This study was supported by the Russian Science Foundation, Agreement No. 23-12-20007, and the Government of the Krasnoyarsk Territory and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, Agreement No. 256 . - ISSN 0021-9606. - ISSN 1089-7690
Аннотация: Golden nanoparticle dimers connected by conjugated molecular linkers 1,2-bis(2-pyridyl)ethylene are produced. The formation of stable dimers with 22 nm diameter nanoparticles is confirmed by transmission electron microphotography. The possibility of charge transfer through the linkers between the particles in the dimers is shown by the density functional theory calculations. In addition to localized plasmon resonance of solitary nanoparticles with a wavelength of 530 nm, the optical spectra exhibit a new intense absorption peak in the near-infrared range with a wavelength of ∼780 nm. The emergent absorption peak is attributed to the charge-transfer plasmon (CTP) mode; the spectra simulated within the CTP developed model agree with the experimental ones. This resonant absorption may be of interest to biomedical applications due to its position in the so-called transmission window of biological tissues. The in vitro heating of CTP dimer solution by a laser diode with a wavelength of 792 nm proved the efficiency of CTP dimers for achieving a temperature increase of ΔT = 6 °C, which is sufficient for hyperthermia treatment of malignant tumors. This indicates the possibility of using hyperthermia to treat malignant tumors using the material we synthesized.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
International Research Center of Spectroscopy and Quantum Chemistry – IRC SQC, Siberian Federal University, 660041 Krasnoyarsk, Russia
Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Computational Modeling, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Visotin, M. A.; Высотин, Максим Александрович; Lukyanenko, A. V.; Лукьяненко, Анна Витальевна; Gerasimov, V. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
}
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