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Actual composition and structure of manganese ferrite nanoparticles dispersed in the borate glass matrix / I. G. Vasilyeva [et al.] // Doklady Chemistry. - 2005. - Vol. 401, Is. 1-3. - P. 47-50, DOI 10.1007/s10631-005-0029-y . - ISSN 0012-5008
Кл.слова (ненормированные):
boric acid -- ferrite -- glass -- manganese derivative -- analytic method -- article -- chemical composition -- chemical structure -- nanoparticle -- stoichiometry -- structure analysis -- transmission electron microscopy -- X ray analysis

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Публикация на русском языке Реальный состав и структура наночастиц феррита марганца, диспергированных в матрице боратных стекол [Текст] / И. Г. Васильева [и др.] // Доклады Академии наук. - 2005. - Т. 401 № 3. - С. 349-352

Держатели документа:
Nikolaev Inst. of Inorg. Chemistry, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 3, Novosibirsk, 630090, Russian Federation
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
All-Russia Research Center, Vavilov State Optical Institute, ul. Babushkina 36/1, St. Petersburg, 192371, Russian Federation

Доп.точки доступа:
Vasilyeva, I. G.; Dovlitova, L. S.; Zaikovskii, V. I.; Malakhov, V. V.; Edel'man, I. S.; Эдельман, Ирина Самсоновна; Stepanov, A. S.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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    Agglomeration behavior of lipid-capped gold nanoparticles / R. Ranjan [et al.] // J. Nanopart. Res. - 2018. - Vol. 20, Is. 4. - Ст. 107, DOI 10.1007/s11051-018-4215-5. - Cited References:35. - The research was supported by the Russian Foundation for Basic Research [project no. 16-34-60100] and the state budget allocated to the fundamental research (project no. 0356-2017-0017). The authors thank Prof. Tatiana Volova, Prof. Evgenia Slyusareva, and Ms. Nina Slyusarenko of the Siberian Federal University for their assistance in the zeta potential and zeta-average analysis. . - ISSN 1388-0764. - ISSN 1572-896X
   Перевод заглавия: Характер агломирирования наночастиц золота, покрытых липидом

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials
Рубрики:
COLORIMETRIC SENSOR ARRAY
   OPTICAL-PROPERTIES
   AGGREGATION
   CANCER
Кл.слова (ненормированные):
Gold nanoparticles -- Ionic interference -- Agglomeration -- Stabilization -- Lipid capping -- Nanobiotechnology applications
Аннотация: The current investigation deciphers aggregation pattern of gold nanoparticles (AuNPs) and lipid-treated AuNPs when subjected to aqueous sodium chloride solution with increasing ionic strengths (100–400 nM). AuNPs were synthesized using 0.29 mM chloroauric acid and by varying the concentrations of trisodium citrate (AuNP1 1.55 mM, AuNP2 3.1 mM) and silver nitrate (AuNP3 5.3 μM, AuNP4 10.6 μM) with characteristic LSPR peaks in the range of 525–533 nm. TEM analysis revealed AuNPs to be predominantly faceted nanocrystals with the average size of AuNP1 to be 35 ± 5 nm, AuNP2 15 ± 5 nm, AuNP3 30 ± 5 nm, and AuNP4 30 ± 5 nm and the zeta-average for AuNPs were calculated to be 31.23, 63.80, 26.08, and 28 nm respectively. Induced aggregation was observed within 10 s in all synthesized AuNPs while lipid-treated AuNP2 (AuNP2-L) was found to withstand ionic interferences at all concentration levels. However, lipid-treated AuNPs synthesized using silver nitrate and 1.55 mM trisodium citrate (AuNP3, AuNP4) showed much lower stability. The zeta potential values of lipid-treated AuNPs (AuNP1-L-1x/200, − 17.93 ± 1.02 mV; AuNP2-L-1x/200, − 21.63 ± 0.70; AuNP3-L-1x/200, − 14.54 ± 0.90; AuNP3-L-1x/200 − 13.77 ± 0.83) justified these observations. To summarize, AuNP1 and AuNP2 treated with lipid mixture 1 equals or above 1x/200 or 1x/1000 respectively showed strong resistance against ionic interferences (up to 400 mM NaCl). Use of lipid mixture 1 for obtaining highly stable AuNPs also provided functional arms of various lengths which can be used for covalent coupling.

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Держатели документа:
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Dept Biophys, Lab Bioluminescent Biotechnol, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Electron Microscopy Lab, 79 Svobodny Prospect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Ranjan, Rajeev; Kirillova, Maria A.; Esimbekova, Elena N.; Zharkov, S. M.; Жарков, Сергей Михайлович; Kratasyuk, Valentina A.; Russian Foundation for Basic Research [16-34-60100]; [0356-2017-0017]
}
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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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Держатели документа:
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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Charge-transfer plasmons of complex nanoparticle arrays connected by conductive molecular bridges / A. S. Fedorov, M. A. Visotin, E. V. Eremkin [et al.] // Phys. Chem. Chem. Phys. - 2022. - Vol. 24, Is. 32. - P. 19531-19540, DOI 10.1039/d2cp01811j. - Cited References: 43. - The work is supported (ASF, EVE, POK, and SPP) by the Russian Science Foundation (project no. 18-13-00363) . - ISSN 1463-9076
Кл.слова (ненормированные):
Charged nanoparticles -- Complex nanoparticles -- Coulombs energy -- External electromagnetic field -- Molecular bridges -- Molecular dynamics algorithms -- Molecular linkers -- Nanoparticle array -- Plasmon frequency -- Statistic approaches
Аннотация: Charge-transfer plasmons (CTP) in complexes of metal nanoparticles bridged by conductive molecular linkers are theoretically analysed using a statistic approach. The applied model takes into account the kinetic energy of carriers inside the linkers including its dissipation and the Coulomb energy of the charged nanoparticles. The plasmons are statistically investigated for systems containing a large number of complexes of bridged nanoparticles of realistic sizes generated using a simplified molecular dynamics algorithm, where the geometries of the complexes are dependent on the rate of connection of the linkers with the nanoparticles. As illustrated, the distribution of CTP frequencies in the generated nanoparticle complexes is very inhomogeneous. It has a narrow peak, corresponding to CTP plasmons in dimers, and two broad peaks, corresponding mainly to low and high-frequency oscillations in chains of connected nanoparticles. It is found that in general the plasmon frequencies depend inversely on the value of the complex dipole moment of the plasmon oscillation, where the assumption follows that low-frequency plasmons will be more efficiently excited in an external electromagnetic field. To calculate the CTP energy absorption in this field two model modifications are proposed: a system-external electromagnetic field interaction model and a simplified broadening plasmon peak model where the plasmons are calculated at first without damping and where the delta-shaped oscillation peaks are broadened then due to the damping. It is demonstrated that both modifications lead to a wide and almost monotonic absorption in the IR region for all generated systems containing a large number of bridged nanoparticles due to the presence of a large number of CTPs in this region.

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Держатели документа:
International Research Center of Spectroscopy and Quantum Chemistry - IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, SE-751 20, Sweden
Federal Siberian Research Clinical Center under FMBA of Russia, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Visotin, M. A.; Высотин, Максим Александрович; Eremkin, E. V.; Krasnov, P. O.; Agren, H.; Polyutov, S. P.
}
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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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Collective lattice resonances in disordered and quasi-random all-dielectric metasurfaces / V. I. Zakomirnyi [et al.] // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P. E21-E29, DOI 10.1364/JOSAB.36.000E21. - Cited References: 91. - Russian Foundation for Basic Research (RFBR) (18-42-240013); Russian Science Foundation (RSF) (18-13-00363); Siberian Federal University (SibFU) (3.8896.2017). . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
PLASMON RESONANCES
   NANOPARTICLE ARRAY
   MODES
   GOLD
   NANOPHOTONICS
Аннотация: Collective lattice resonances in disordered 2D arrays of spherical Si nanoparticles (NPs) have been thoroughly studied within the framework of the coupled dipole approximation. Three types of defects have been analyzed: positional disorder, size disorder, and quasi-random disorder. We show that the positional disorder strongly suppresses either the electric dipole (ED) or the magnetic dipole (MD) coupling, depending on the axis along which the NPs are shifted. Contrarily, size disorder strongly affects only the MD response, while the ED resonance can be almost intact, depending on the lattice configuration. Finally, random removing of NPs from an ordered 2D lattice reveals a quite surprising result: hybridization of the ED and MD resonances with lattice modes remains observable even in the case of random removing of up to 84% of the NPs from the ordered array. The reported results could be important for rational design and utilization of metasurfaces, solar cells, and other alldielectric photonic devices. (C) 2019 Optical Society of America

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Держатели документа:
Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Dept Theoret Chem & Biol, SE-10691 Stockholm, Sweden.
FMBA Russia, Fed Siberian Res Clin Ctr, Krasnoyarsk 660037, Russia.
Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660041, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
RAS, KSC SB, Fed Res Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Univ Rochester, Inst Opt, 601 Elmwood Ave, Rochester, NY 14627 USA.

Доп.точки доступа:
Zakomirnyi, Vadim, I; Karpov, S. V.; Карпов, Сергей Васильевич; Agren, Hans; Rasskazov, Ilia L.; Russian Foundation for Basic Research (RFBR) [18-42-240013]; Russian Science Foundation (RSF) [18-13-00363]; Siberian Federal University (SibFU) [3.8896.2017]
}
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Core-shell exchange interaction effect in the approach to magnetic saturation of a magnetite-like nanoparticle / S. V. Komogortsev, S. V. Stolyar, R. S. Iskhakov, A. A. Mohov // V International Baltic Conference on Magnetism. IBCM : Book of abstracts. - 2023. - P. 40

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS
Federal Research Center KSC SB RAS

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Mohov, A. A.; International Baltic Conference on Magnetism(5 ; 2023 ; Aug. 20-24 ; Svetlogorsk, Russia); Балтийский федеральный университет им. И. Канта
}
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Dynamic changes of optical characteristics of resonant domains in metal nanoparticle aggregates under pulsed laser fields [Text] / A. P. Gavrilyuk, S. V. Karpov. // Technical digest International conference ICONO/LAT 2010. - Казань, 2010. - Ст. ITuQ39

Доп.точки доступа:
Gavrilyuk, A.P.; Karpov., S.V.; International Conference on Coherent and Nonlinear Optics(2010 ; Aug. ; 23-26 ; Казань); International Conference on Lasers, Applications, and Technologies(2010 ; Aug. ; 23-26 ; Казань)
}
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Dynamic Changes of Optical Characteristics of Resonant Domains in Metal Nanoparticle Aggregates under Pulsed Laser Fields [Text] / Gavrilyuk A.P., Karpov S.V. // Applied Physics B: Lasers and Optics. - 2010. - Vol. 101. - P512

Доп.точки доступа:
Gavrilyuk, A.P.; Karpov, S.V.
}
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10.

Effect of local environment in resonant domains of polydisperse plasmonic nanoparticle aggregates on optodynamic processes in pulsed laser fields / A. E. Ershov [et al.] // Chin. Phys. B. - 2015. - Vol. 24, Is. 4. - Ст. 047804, DOI 10.1088/1674-1056/24/4/047804. - Cited References:25. - Project supported by the Russian Academy of Sciences (Grant Nos. 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), and 3-9-5). . - ISSN 1674. - ISSN 1741-4199. -

РУБ Physics, Multidisciplinary
Рубрики:
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.

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Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), 3-9-5]
}
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