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Metal-polymer magnetic-properties due to dipole-dipole interaction of iron microparticles / V. P. Piskorskii [et al.] // Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 5. - P. 1507-1509. - Cited References: 13 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Piskorskii, V. P.; Petrakovskii, G. A.; Петраковский, Герман Антонович; Gubin, S. P.; Kosobudskii, I. D.
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Sadreev, A. F.
Temporal oscillations of light transmission through dielectric microparticles subjected to optically induced motion / A. F. Sadreev, E. Y. Sherman // Phys. Rev. A. - 2016. - Vol. 94, Is. 3. - Ст. 033820, DOI 10.1103/PhysRevA.94.033820. - Cited References:37. - The work of A.F.S. was partially supported by Grant No. 14-12-00266 from the Russian Science Foundation. This work of E.Y.S. was supported by the University of the Basque Country UPV/EHU under Program No. UFI 11/55, FIS2015-67161-P (MINECO/FEDER), and Grupos Consolidados UPV/EHU del Gobierno Vasco (Grant No. IT-472-10). . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
FOCUSED LASER-BEAM
   CAVITY OPTOMECHANICS
   BACK-ACTION
   FORCES
   NANOPARTICLES
   MANIPULATION
   PARTICLES
   TRAP
Аннотация: We consider light-induced binding and motion of dielectric microparticles in an optical waveguide that gives rise to a backaction effect such as light transmission oscillating with time. Modeling the particles by dielectric slabs allows us to solve the problem analytically and obtain a rich variety of dynamical regimes both for Newtonian and damped motion. This variety is clearly reflected in temporal oscillations of the light transmission. The characteristic frequencies of the oscillations are within the ultrasound range of the order of 105 kHz for micron-size particles and injected power of the order of 100mW. In addition, we consider dynamics of a dielectric particle, driven by light propagating inside a Fabry-Perot resonator. These phenomena pave a way for optical driving and monitoring of the motion of particles in waveguides and resonators.

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Держатели документа:
Kirensky Phys Inst, Krasnoyarsk 660036, Russia.
Univ Basque Country, UPV EHU, Dept Phys Chem, E-48080 Bilbao, Spain.
IKERBASQUE Basque Fdn Sci, Bilbao, Spain.

Доп.точки доступа:
Sherman, E. Ya.; Садреев, Алмаз Фаттахович; Russian Science Foundation [14-12-00266]; University of the Basque Country UPV/EHU (MINECO/FEDER) [UFI 11/55, FIS2015-67161-P]; Grupos Consolidados UPV/EHU del Gobierno Vasco [IT-472-10]
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Magnetic Properties of Soft Magnetic Alloys 5BDSR and 82K3HSR / V. A. Svetlichnyi [et al.] // Russ. Phys. J. - 2019. - Vol. 62, Is. 3. - P. 411-415, DOI 10.1007/s11182-019-01728-6. - Cited References: 22. - The authors acknowledge the financial support from the Russian Science Foundation (Grant N 18-19-00268) and like to thank their colleagues from Kirensky Institute of Physics SB RAS M. V. Volochaev for his help with TEM measurements and D. A. Velikanov for assistance in measurements on the vibration magnetometer. . - ISSN 1064-8887
Кл.слова (ненормированные):
soft magnetic amorphous and nanocrystalline alloys -- 5BDSR -- 82K3HSR -- microparticles -- nanoparticles -- pulsed laser ablation -- magnetic properties
Аннотация: The paper explores the size and morphology of microparticles of soft magnetic alloys 5BDSR and 82K3HSR and nanoparticles first obtained from these alloys using pulsed laser ablation in gas. The magnetic properties of particles are studied depending on their size, composition and production method.

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Публикация на русском языке Исследование магнитных свойств частиц магнитомягких сплавов 5БДСР и 82К3ХСР [Текст] / В. А. Светличный [и др.] // Изв. вузов. Физика. - 2019. - Т. 62 № 3. - С. 26-30

Держатели документа:
National Research Tomsk State University, Tomsk, Russian Federation
Research Institute of Semiconductor Devices, Tomsk, Russian Federation
Kirensky Institute of Physics of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Svetlichnyi, V. A.; Balashov, V. B.; Lapin, I. N.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Cherepanov, V. N.
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A study of the properties and efficacy of microparticles based on P(3HB) and P(3HB/3HV) loaded with herbicides / R. Vijayamma, H. J. Maria, S. Thomas [et al.] // J. Appl. Polym. Sci. - 2022. - Vol. 139, Is. 10. - Ст. 51756, DOI 10.1002/app.51756. - Cited References: 58. - This work was supported by Project “Agropreparations of the new generation: a strategy of construction and realization” (Agreement No 074-02-2018-328) in accordance with Resolution No 220 of the Government of the Russian Federation of April 9, 2010, “On measures designed to attract leading scientists to the Russian institutions of higher learning”. Instruments of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS» were used . - ISSN 0021-8995
Кл.слова (ненормированные):
biodegradable -- drug delivery systems -- microparticles
Аннотация: The wide use of pesticides in agriculture has caused uncontrolled distribution of these chemicals in the environment, calling for the development and investigation of new environmentally friendly formulations, which would reduce human impact on nature. In the present study, the metribuzin (MET), tribenuron-methyl (TBM), and fenoxaprop-P-ethyl (FPE) herbicides were encapsulated in microparticles of degradable microbial polymers – polyhydroxyalkanoates (PHAs) – of two types – poly-3-hydroxybutyrate [P(3HB)] and poly(3-hydroxybutyrate-co-3-hydroxyvalerate [P(3HB/3HV)]. The use of P(3HB) resulted in higher yields of microparticles (63% to 79%) and larger sizes of the particles, whose average diameter was 0.60 ± 0.06–0.75 ± 0.11 μm, while the average diameter of copolymer particles varied between 0.43 ± 0.12 and 0.55 ± 0.05 μm. Encapsulation efficiency was rather determined by the type of herbicide and its solubility, varying from 24.7% to 48.2%. In vitro herbicide release from microparticles to water was affected by herbicide solubility and PHA chemical composition. The readily soluble MET showed the highest release rate, and over 30 days, 64% and 78% of the encapsulated amounts were released from P(3HB) and P(3HB/3HV) microparticles, respectively. High herbicidal activity of microparticles loaded with metribuzin and tribenuron-methyl was demonstrated in the laboratory stands of the Elsholtzia ciliata weed plant.

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Держатели документа:
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Scientific Laboratory, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vijayamma, R.; Maria, H. J.; Thomas, S.; Shishatskaya, E. I.; Kiselev, E. G.; Nemtsev, I. V.; Немцев, Иван Васильевич; Sukhanova, A. A.; Volova, T. G.
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    Features of magnetic and magneto-optical properties of lanthanum manganite microparticles / R. D. Ivantsov, M. M. Mikhailov, I. S. Edelman, G. Yu. Yurkin // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. III.o.06. - P. 128. - Cited References: 1 . - ISBN 987-5-8044-1716-2
   Перевод заглавия: Особенности магнитных и магнитооптических свойств микрочастиц манганита лантана
Аннотация: For La1-xSrxMnO3 powders prepared by the solid-phase reaction method using various thermal regimes and x values, the temperature dependences of magnetization, circular magnetic dichroism (MCD), and diffuse reflectance spectra were studied. The powders synthesis at temperatures of 800–900 °C for 2 h leads to the formation of a multiphase state. The higher temperatures and duration of synthesis lead to the formation of two predominant magnetic phases with the Curie temperature (TC) of about 250 and 360 K. Correlation is established between magnetic states of the powder and the shape of the diffuse reflection spectra. The strong red shift of the MCD spectrum for the La1-xSrxMnO3 powder is revealed comparing to the MCD spectra of La1-xSrxMnO3 films available in literature.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Tomsk State University of Control System & Radioelectronics
Siberian Federal University

Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Mikhailov, M. M.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
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Collagen conjugation to carboxyl-modified poly(3-hydroxybutyrate) microparticles: preparation, characterization and evaluation in vitro / A. V. Murueva, A. M. Shershneva, I. V. Nemtsev [et al.] // J. Polym. Res. - 2022. - Vol. 29, Is. 8. - Ст. 324, DOI 10.1007/s10965-022-03181-5. - Cited References: 45. - This work was supported by the State Assignment of the Ministry of Science and Higher Education of the Russian Federation No. FSRZ-2020–0006 . - ISSN 1022-9760
Кл.слова (ненормированные):
Poly(3-hydroxybutyrate) -- Collagen -- Microparticles -- Surface conjugation -- Cytotoxicity
Аннотация: The objective of this study was to produce and characterize collagen conjugated poly(3-hydroxybutyrate) (P3HB) microparticles. The double emulsion solvent evaporation technique was used to fabricate biopolymer microparticles. Alkaline hydrolysis method was used for carboxylation of P3HB microparticles followed by collagen (type I) conjugation using 1-ethyl-3-(3-dime-thylaminopropyl) carbodiimide and N-hydroxysuccinimide cross linkers. The successful chemical modification of P3HB-MP surface was evidenced by XPS analysis and FTIR spectroscopy, confirming an increase in the number of carboxyl groups and covalent bonding of collagen on the surface of functionalized P3HB microparticles (Col-P3HB-MPs). The amount of collagen present on Col-P3HB-MPs microparticles was quantified by the Lowry method. The average diameter and zeta-potential of microparticles were found to be dependent upon the method of preparation. The absence of cytotoxicity of modified Col-P3HB-MPs to fibroblast NIH 3T3 cells in vitro was corroborated by results of MTT assay. Staining with the fluorescent dye showed enhanced adhesion of fibroblasts onto Col-P3HB-MPs compared to the unmodified P3HB-MPs.

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Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences (IBP SB RAS), 50/50 Akademgorodok, Krasnoyarsk, Russian Federation
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041, Russian Federation
Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the RAS (FRC KSC SB RAS), 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
L.V. Kirensky Institute of Physics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS, 50/38 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Murueva, A. V.; Shershneva, A. M.; Nemtsev, I. V.; Немцев, Иван Васильевич; Shishatskaya, E. I.; Volova, T. G.
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