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Problem of the energy relations between bioluminescence and respiration of luminous bacteria / I. I. Gitel'zon, R. I. Chumakova, A. M. Fish // Biophysics. - 1965. - Vol. 10, Is. 1. - P108-113 . - ISSN 0006-3509
Аннотация: 1. (1) The increase in the intensity of the luminescence of bacteria observed on addition of glucose follows a curve with a well-marked maximum after which attenuation sets in. 2. (2) For the relations studied by us between the amount of glucose and the amount of bacterial suspension (1 ml 0В·1 m solution of glucose per ml suspension) the time of attaining the maximum intensity of luminescence and the ratio of the maximum intensity of emission to its level before addition of glucose do not depend on the concentration of bacteria in the suspension. 3. (3) The highest uptake of glucose by bacteria occurs in the period from addition of glucose to the moment of maximum rise in luminescence. Change in the intensity of luminescence after addition of glucose follows a curve similar to that of glucose uptake. 4. (4) We have determined the radiant flux and all the radiant energy released by bacteria in the period from addition of glucose to the moment of attaining the maximum intensity. One bacterial cell on average emits 100 quanta/sec. 5. (5) Bioluminescence accounts for 10-6 parts of the entire energy released on oxidation of glucose. В© 1966.

Scopus
Держатели документа:
Institute of Physics, the Siberian Department, the U.S.S.R. Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gitel'zon, I.I.; Chumakova, R.I.; Fish, A.M.

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Size effect on the optical limiting in suspensions of detonation nanodiamond clusters / V. . Vanyukov [et al.] // Appl. Optics. - 2013. - Vol. 52, Is. 18. - P4123-4130, DOI 10.1364/AO.52.004123. - Cited References: 40. - This work was supported by the Ural Branch of RAS (Project No. 12-C-1-1003) and FP7 Marie Curie projects CACOMEL and FANCEE. . - ISSN 1559-128X

РУБ Optics
Рубрики:
CARBON NANOTUBE SUSPENSIONS
   ONION-LIKE CARBON
   NONLINEAR LIGHT-SCATTERING
   Z-SCAN TECHNIQUE
   PULSE DURATION
   BEHAVIOR
   MECHANISMS
   PARTICLES
Аннотация: We report on the optical limiting (OL) in stable aqueous suspensions of detonation nanodiamond (ND) clusters with average size of 50, 110, and 320 nm. The nanosecond Z-scan measurements at wavelength of 532 nm revealed that the larger the cluster size, the better the OL performance and the higher the ray stability of the ND suspension. Our analysis showed that the nonlinear scattering and the nonlinear absorption are the dominant mechanisms of OL in aqueous ND suspensions. (C) 2013 Optical Society of America

Держатели документа:
[Vanyukov, Viatcheslav
Svirko, Yuri] Univ Eastern Finland, Dept Math & Phys, Joensuu 80101, Finland
[Vanyukov, Viatcheslav
Mogileva, Tatyana
Mikheev, Gennady] Russian Acad Sci, Inst Mech, Izhevsk 426067, Russia
[Puzir, Aleksey
Bondar, Vladimir] Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Vanyukov, V...; Mogileva, T...; Mikheev, G...; Puzir, A...; Bondar, V...; Svirko, Y...

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Effect of laser-radiation polarization on the nonlinear scattering of light in nanodiamond suspensions [Text] / G. M. Mikheev [et al.] // Tech. Phys. Lett. - 2014. - Vol. 40, Is. 7. - P609-613, DOI 10.1134/S1063785014070220. - Cited References: 19. - This study was supported in part by the Russian Foundation for Basic Research (project no. 13-02-96016r_ural_a), the Presidium of the Ural Branch of the Russian Academy of Sciences (project no. 12-S-1-1003), and the Academy of Finland (grant no. 278252). . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied
Рубрики:
CARBON NANOTUBE SUSPENSIONS
DETONATION NANODIAMOND
OPTICAL-PROPERTIES
Аннотация: The effect of laser radiation polarization on the nonlinear scattering of light in aqueous suspensions of detonation nanodiamonds (DNDs) in a regime of optical power limiting (OPL) has been studied. It is established that the nonlinear transmission coefficient of DND suspension in the OPL regime in a field of nanosecond laser pulses with a wavelength of 532 nm is independent of the polarization of incident radiation. The nonlinear scattering of light observed at an angle of 90A degrees in the plane perpendicular to the plane of polarization of the incident radiation depends on the polarization angle in accordance with a trigonometric law. It is shown that the ratio of the signals of scattered radiation for the vertical and horizontal polarizations exhibits nonmonotonic dependence on the laser-beam power density. The results are explained by the Rayleigh-Mie scattering and a change in the size of scattering centers as a result of the effect of a laser upon the DND suspension.

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Scopus
Держатели документа:
[Mikheev, G. M.] Russian Acad Sci, Inst Mech, Ural Branch, Izhevsk 426067, Russia
Univ Eastern Finland, Inst Photon, FI-80101 Joensuu, Finland
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Mikheev, G.M.; Vanyukov, V.V.; Mogileva, T.N.; Puzyr', A.P.; Bondar', V.S.; Svirko, Y.P.; Russian Foundation for Basic Research [13-02-96016r_ural_a]; Presidium of the Ural Branch of the Russian Academy of Sciences [12-S-1-1003]; Academy of Finland [278252]

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Theoretical analysis of optical spectra of algal absorption / L. E. Paramonov // Oceanology. - 1996. - Vol. 35, Is. 5. - P. 655-659 . - ISSN 0001-4370
Аннотация: A formula for the absorption cross section of macroisotropic volume element containing soft particles is proposed. A formula is given that describes transformation of the absorption cross section with granulometric composition of a substance. Absorption spectra for the green, blue-green, and diatom algae are examined against microstructure of suspension. Some problems of inverse task solutions are discussed.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Paramonov, L.E.

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A THEORETICAL-ANALYSIS OF OPTICAL-ABSORPTION SPECTRA OF ALGAE [Текст] / L. E. PARAMONOV // Okeanologiya. - 1995. - Vol. 35, Is. 5. - P. 719-724. - Cited References: 30 . - ISSN 0030-1574

РУБ Oceanography
Рубрики:
NATURAL-WATERS
   PHYTOPLANKTON PIGMENTS
   LIGHT
   ATTENUATION
   CELLS
   CHLOROPHYLL
   SCATTERING
   COASTAL
Аннотация: The formula for the absorption cross sections of macroscopically isotropic volume element which consists of ''soft'' particles is proposed. The transformation formula for absorption cross sections on disperse composition is given. The dependence of absorption spectra of green, blue-green and diatom algae on microstructure of suspension is considered. Some inverse problems are discussed.

WOS : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
PARAMONOV, L.E.

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The mechanism of formation of light scattering function of biological suspension [Text] / V. . Lopatin, N. . Shepelevich // Prog. Biophys. Mol. Biol. - 1996. - Vol. 65. - P. PMI29-PMI29. - Cited References: 0 . - ISSN 0079-6107

РУБ Biochemistry & Molecular Biology + Biophysics

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Держатели документа:
KRASNOYARSK STATE UNIV,KRASNOYARSK,RUSSIA
RUSSIAN ACAD SCI,INST BIOPHYS,SB,KRASNOYARSK,RUSSIA
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50
Доп.точки доступа:
Lopatin, V...; Shepelevich, N...

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Flocculation of bacterial cells in a culture with protozoans [Текст] / Y. L. Gurevich, M. I. Teremova, A. V. Latyntseva // Izv. Akad. Nauk Ser. Biol. - 1998. - Is. 3. - P. 351-355. - Cited References: 13 . - ISSN 0002-3329

РУБ Biology

Аннотация: The initial phase of formation of the biogenic suspension was studied in experimental communities of bacteria and protozoans that simulate degradation of the phenol technogenic flows. Protozoans were shown to initiate formation of bacterial aggregates and increase the size of bacterial flocules several hundred times. Factors were found by the methods of mathematical planning, which markedly affect the size and amount of flocules. Unlike natural water bodies, in the sample communites, the presence of abiogenic substrate was not essential for aggregation of the bacteria, The aggregated bacterial cells make an important contribution to degradation of organic compounds.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gurevich, Y.L.; Teremova, M.I.; Latyntseva, A.V.

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Polarization-sensitive nonlinear light scattering and optical limiting in aqueous suspension of detonation nanodiamonds [Text] / V. V. Vanyukov [et al.] // J. Opt. Soc. Am. B-Opt. Phys. - 2014. - Vol. 31, Is. 12. - P2990-2995, DOI 10.1364/JOSAB.31.002990. - Cited References: 29. - This work was supported by the Academy of Finland (grant 278252), the Russian Foundation for Basic Research (grant 13-02-96016 r_ural_a), the Emil Aaltosen Saatio foundation, the Erasmus staff exchange support (Dno 275/04.04.02.01), the Ural Branch of Russian Academy of Sciences (project 12-C-1-1003), and the FP7 Marie Curie projects CACOMEL and FANCEE. . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
CARBON-BLACK SUSPENSIONS
   NANOTUBES
   DEPENDENCE
   MECHANISMS
   PARTICLES
   CLUSTERS
Аннотация: We report on the polarization dependence of the optical limiting and nonlinear light scattering in nanodiamond clusters suspended in distilled water. The nanosecond Z-scan measurements at a wavelength of 532 nm reveal that the nonlinear transmittance of the suspension is independent of polarization, while the energy of the light pulses scattered at 90 deg shows a cosine-like dependence on the polarization azimuth of the incident beam. Moreover, the ratio of the energies of the vertically and horizontally polarized scattered pulses is a nonmonotonous function of the input fluence. The obtained results can be explained in terms of the change of scattering center size under the laser action and are in agreement with the predictions of the Rayleigh-Mie scattering theory. (C) 2014 Optical Society of America

WOS
Держатели документа:
[Vanyukov, Viatcheslav V.
Svirko, Yuri P.] Univ Eastern Finland, Inst Photon, Joensuu 80101, Finland
[Mikheev, Gennady M.
Mogileva, Tatyana N.] Russian Acad Sci, Inst Mech, Izhevsk 426067, Russia
[Puzyr, Alexey P.
Bondar, Vladimir S.] Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Vanyukov, V.V.; Mikheev, G.M.; Mogileva, T.N.; Puzyr, A.P.; Bondar, V.S.; Svirko, Y.P.; Academy of Finland [278252]; Russian Foundation for Basic Research [13-02-96016 r_ural_a]; Emil Aaltosen Saatio foundation; Erasmus staff exchange support [Dno 275/04.04.02.01]; Ural Branch of Russian Academy of Sciences [12-C-1-1003]; FP7 Marie Curie project CACOMEL; FP7 Marie Curie project FANCEE

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Field emission luminescence of nanodiamonds deposited on the aligned carbon nanotube array [Text] / Y. V. Fedoseeva [et al.] // Sci Rep. - 2015. - Vol. 5. - Ст. 9379, DOI 10.1038/srep09379. - Cited References:49. - The work was supported by RFBR grant 13-03-12118 in the part of electroluminescence measurements and the bilateral Program "Russian-German Laboratory at BESSY''. We are grateful to Mr. A.V. Ischenko for the TEM measurements, Mr. S.I. Kozhemyachenko for the Raman spectra, Mrs. N.I. Alferova for the IR spectra, and Mr. D.V. Gulyaev for the photoluminescence spectra. . - ISSN 2045-2322

РУБ Multidisciplinary Sciences
Рубрики:
DETONATION NANODIAMOND
ULTRANANOCRYSTALLINE DIAMOND
Аннотация: Detonation nanodiamonds (NDs) were deposited on the surface of aligned carbon nanotubes (CNTs) by immersing a CNT array in an aqueous suspension of NDs in dimethylsulfoxide (DMSO). The structure and electronic state of the obtained CNT-ND hybrid material were studied using optical and electron microscopy and Infrared, Raman, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopy. A non-covalent interaction between NDs and CNT and preservation of vertical orientation of CNTs in the hybrid were revealed. We showed that current-voltage characteristics of the CNT-ND cathode are changed depending on the applied field; below similar to 3 V/mu m they are similar to those of the initial CNT array and at the higher field they are close to the ND behavior. Involvement of the NDs in field emission process resulted in blue luminescence of the hybrid surface at an electric field higher than 3.5 V/mu m. Photoluminescence measurements showed that the NDs emit blue-green light, while blue luminescence prevails in the CNT-ND hybrid. The quenching of green luminescence was attributed to a partial removal of oxygen-containing groups from the ND surface as the result of the hybrid synthesis.

WOS,
Scopus
Держатели документа:
Nikolaev Inst Inorgan Chem SB RAS, Novosibirsk 630090, Russia.
Novosibirsk State Univ, Novosibirsk 630090, Russia.
Tech Univ Dresden, Inst Solid State Phys, D-01062 Dresden, Germany.
Inst Biophys SB RAS, Krasnoyarsk 660036, Russia.
ИБФ СО РАН

Доп.точки доступа:
Fedoseeva, Yu. V.; Bulusheva, L.G.; Okotrub, A.V.; Kanygin, M.A.; Gorodetskiy, D.V.; Asanov, I.P.; Vyalikh, D.V.; Puzyr, A.P.; Bondar, V.S.; RFBR grant [13-03-12118]; bilateral Program "Russian-German Laboratory at BESSY''

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10.

Saturable absorption in aqueous suspensions of detonation nanodiamonds under irradiation with femtosecond laser pulses / G. M. Mikheev [et al.] // Tech. Phys. Lett. - 2015. - Vol. 41, Is. 12. - P1163-1166, DOI 10.1134/S1063785015120263 . - ISSN 1063-7850
Аннотация: The phenomenon of saturable absorption has been observed in aqueous suspensions of detonation nanodiamonds (DNDs) with 34, 50, and 110 nm sized clusters of nanoparticles under irradiation with 795-nm laser pulses of 120-fs duration. The saturable absorption intensity has been studied as a function of the DND concentration in suspension. At a concentration of 2 wt % of DNDs with 50-nm average cluster size, the saturable absorption intensity amounts to 950 GW/cm2. © 2015, Pleiades Publishing, Ltd.

Scopus,
WOS
Держатели документа:
Institute of Mechanics, Ural Branch, Russian Academy of Sciences, Izhevsk, Russian Federation
Institute of Photonics, University of Eastern Finland, Joensuu, Finland
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mikheev, G. M.; Vanyukov, V. V.; Mogileva, T. N.; Puzyr’, A. P.; Bondar’, V. S.; Svirko, Y. P.

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11.

Optical limiting in suspension of detonation nanodiamonds in engine oil / K. G. Mikheev [et al.] // J. Nanophoton. - 2017. - Vol. 11, Is. 3. - P113258162, DOI 10.1117/1.JNP.11.032502 . - ISSN 1934-2608
Кл.слова (ненормированные):
Ambient temperature -- Detonation nanodiamonds -- Engine oil -- Optical limiting -- Optical limiting threshold -- Suspension -- Cluster analysis -- Detonation -- Engines -- Laser excitation -- Lubricating oils -- Nanoparticles -- Q switching -- Suspensions (fluids) -- Temperature -- Detonation nanodiamond -- Detonation nanodiamonds -- Engine oil -- Incident radiation -- Nanoparticle clusters -- Optical limiting -- Passive Q-switching -- Wide temperature ranges -- Nanodiamonds
Аннотация: The optical limiting (OL) of detonation nanodiamond (DND) suspensions in engine oil was studied at a temperature range of 20°C to 100°C. Oil suspensions were prepared on the basis of the DNDs with an average nanoparticle cluster size in hydrosols (Daver) of 50 and 110 nm. Raman spectroscopy was used to characterize the samples. The OL investigation was carried out by the z-scan technique. The fundamental (1064 nm) and second (532 nm) harmonic radiations of YAG:Nd3 laser with passive Q-switching as an excitation source were used. The OL thresholds for both suspensions at 532 and 1064 nm were determined. It is shown that a decrease in the average nanoparticle cluster size as well as an increase of the wavelength of the incident radiation leads to the OL threshold increase. It is established that the OL performance is not influenced by increasing the temperature from 20°C to 100°C. The results obtained show the possibility of using the DNDs suspensions in engine oil as an optical limiter in a wide temperature range. © 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).

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Держатели документа:
Institute of Mechanics Ural Branch RAS, 34, T. Baramzinoy Street, Izhevsk, Russian Federation
Institute of Biophysics Siberian Branch of RAS, 50/50, Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mikheev, K. G.; Krivenkov, R. Yu.; Mogileva, T. N.; Puzyr, A. P.; Bondar, V. S.; Bulatov, D. L.; Mikheev, G. M.

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12.

Is bacterial luminescence response to low-dose radiation associated with mutagenicity? / T. V. Rozhko [et al.] // J. Environ. Radioact. - 2017. - Vol. 177. - P261-265, DOI 10.1016/j.jenvrad.2017.07.010 . - ISSN 0265-931X
Кл.слова (ненормированные):
Bioassay -- DNA -- Low-dose radiation -- Luminous marine bacteria -- Mutations -- Bacteria -- Bioassay -- Bioluminescence -- Chemical activation -- DNA -- DNA sequences -- Genes -- Ionizing radiation -- Kinetics -- Luminescence -- Nucleic acids -- Phosphorescence -- Physiological models -- Radioisotopes -- Bacterial suspensions -- Beta-emitting radionuclides -- Low dose radiation -- Luminescence intensity -- Marine bacterium -- Mutations -- Photobacterium phosphoreum -- Physiological parameters -- Radiation -- Bacteria (microorganisms) -- Photobacterium phosphoreum
Аннотация: Luminous marine bacteria are widely used in bioassays with luminescence intensity being a physiological parameter tested. The purpose of the study was to determine whether bacterial genetic alteration is responsible for bioluminescence kinetics change under low-dose radiation exposure. The alpha-emitting radionuclide 241Am and beta-emitting radionuclide 3H were used as the sources of low-dose ionizing radiation. Changes of bioluminescence kinetics of Photobacterium phosphoreum in solutions of 241Am(NO3)3, 7 kBq/L, and tritiated water, 100 MBq/L, were studied; bioluminescence kinetics stages (absence of effect, activation, and inhibition) were determined. Bacterial suspension was sampled at different stages of the bioluminescent kinetics; the doses accumulated by the samples were close or a little higher than a tentative limit of a low-dose interval: 0.10 and 0.85 Gy for 241Am, or 0.11 and 0.18 Gy for 3H. Sequence analysis of the 16S ribosomal RNA gene did not reveal a mutagenic effect of low-dose alpha and beta radiation in the bacterial samples. Previous results on bacterial DNA exposed to low-dose gamma radiation (0.25 Gy) were analyzed and compared to those for alpha and beta irradiation. It is concluded that bioluminescence activation and/or inhibition under the applied conditions of low-dose alpha, beta and gamma radioactive exposure is not associated with DNA mutations in the gene sequences tested. © 2017 Elsevier Ltd

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Держатели документа:
Krasnoyarsk State Medical Academy, 1 P.Zheleznyaka, Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, Russian Federation
SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, Novosibirsk, Russian Federation
Siberian State Technological University, LB, 29 Pobedy, Lesosibirsk, Krasnoyarsk Region, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center ‘Krasnoyarsk Science Center SB RAS’, 50/50 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Rozhko, T. V.; Guseynov, O. A.; Guseynova, V. E.; Bondar, A. A.; Devyatlovskaya, A. N.; Kudryasheva, N. S.

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13.

Biogenic Ferrihydrite Nanoparticles: Synthesis, Properties In Vitro and In Vivo Testing and the Concentration Effect / S. V. Stolyar, O. A. Kolenchukova, A. V. Boldyreva [et al.] // Biomedicines. - 2021. - Vol. 9, Is. 3. - Ст. 323, DOI 10.3390/biomedicines9030323. - Cited References:52. - This research was funded by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory and the Regional Science Foundation, grant number 20-416-242907. . - ISSN 2227-9059

РУБ Biochemistry & Molecular Biology + Medicine, Research & Experimental

Кл.слова (ненормированные):
ferrihydrite nanoparticles -- concentration effect -- microorganisms -- Klebsiella oxytoca -- neutrophilic granulocytes -- chemiluminescence -- toxicology
Аннотация: Biogenic ferrihydrite nanoparticles were synthesized as a result of the cultivation of Klebsiella oxytoca microorganisms. The distribution of nanoparticles in the body of laboratory animals and the physical properties of the nanoparticles were studied. The synthesized ferrihydrite nanoparticles are superparamagnetic at room temperature, and the characteristic blocking temperature is 23-25 K. The uncompensated moment of ferrihydrite particles was determined to be approximately 200 Bohr magnetons. In vitro testing of different concentrations of ferrihydrite nanoparticles for the functional activity of neutrophilic granulocytes by the chemiluminescence method showed an increase in the release of primary oxygen radicals by blood phagocytes when exposed to a minimum concentration and a decrease in secondary radicals when exposed to a maximum concentration. In vivo testing of ferrihydrite nanoparticles on Wister rats showed that a suspension of ferrihydrite nanoparticles has chronic toxicity, since it causes morphological changes in organs, mainly in the spleen, which are characterized by the accumulation of hemosiderin nanoparticles (stained blue according to Perls). Ferrihydrite can also directly or indirectly stimulate the proliferation and intracellular regeneration of hepatocytes. The partial detection of Perls-positive cells in the liver and kidneys can be explained by the rapid elimination from organs and the high dispersion of the nanomaterial. Thus, it is necessary to carry out studies of these processes at the systemic level, since the introduction of nanoparticles into the body is characterized by adaptive-proliferative processes, accompanied by the development of cell dystrophy and tension of the phagocytic system.

WOS
Держатели документа:
RAS, Kirensky Inst Phys, Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Biophys, Krasnoyarsk 660041, Russia.
RAS, Sci Res Inst Med Problems North, Fed Res Ctr KSC SB, Krasnoyarsk 660022, Russia.
RAS, Inst Biophys, Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Stolyar, Sergey V.; Kolenchukova, Oksana A.; Boldyreva, Anna V.; Kudryasheva, Nadezda S.; Gerasimova, Yulia V.; Krasikov, Alexandr A.; Yaroslavtsev, Roman N.; Bayukov, Oleg A.; Ladygina, Valentina P.; Birukova, Elena A.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory; Regional Science Foundation [20-416-242907]

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14.

A new composite material based on alumina nanofibers and detonation nanodiamonds: synthesis, characterization, and sensing application / N. O. Ronzhin, E. D. Posokhina, E. V. Mikhlina [et al.] // J. Nanopart. Res. - 2021. - Vol. 23, Is. 9. - Ст. 199, DOI 10.1007/s11051-021-05309-y. - Cited References:57. - This work is partially supported by the Russian Foundation for Basic Research, Project 18-29-19078 (E. V. Mikhlina, M. M. Simunin, I. Ryzhkov). . - ISSN 1388-0764. - ISSN 1572-896X

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials
Рубрики:
ELECTROCHEMICAL ENERGY-STORAGE
SELECTIVE DETECTION
PHENOL DETECTION
Кл.слова (ненормированные):
Nanodiamonds -- Alumina nanofibers -- Composite -- Indicator system -- Phenol
Аннотация: The development of inexpensive, easy-to-produce, and easy-to-use analytical tools for detection of harmful and toxic substances is a relevant research problem with direct applications in environmental monitoring and protection. In this work, we propose a novel composite material based on alumina nanofibers and detonation nanodiamonds for detection of phenol in aqueous medium. The composite material was obtained by mixing an aqueous suspension of alumina nanofibers with a diameter of 10-15 nm and a length of several microns and a hydrosol of nanodiamonds with an average cluster size of 70 nm. The mechanisms underlying the interaction of these nanomaterials are clarified and the physicochemical properties of the composite are investigated. The SEM and TEM studies show that the obtained composite has a network structure, in which clusters of nanodiamonds (10-20 nm in diameter) are distributed over the surface of nanofibers. Coupling of nanomaterials occurs due to opposite signs of their zeta potentials, which results in electrostatic attraction and subsequent chemical bonding as indicated by the X-ray photoelectron spectroscopy and simultaneous thermal analysis. The bonding apparently occurs between functional groups (mainly carboxyl) on the surface of nanodiamonds and amphoteric hydroxyl groups on the surface of alumina nanofibers. The proposed composite allows an easy-to-perform colorimetric analysis for qualitative and quantitative determination of phenol in aqueous samples with linear response over a wide range of concentrations (0.5-106 mu M). Multiple tests have shown that the composite is reusable and retains its catalytic function for at least 1 year during storage at room temperature.

WOS
Держатели документа:
Inst Biophys SB RAS, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny 79, Krasnoyarsk 660041, Russia.
Inst Computat Modelling SB RAS, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.
Inst Chem & Chem Technol SB RAS, Akademgorodok 50-24, Krasnoyarsk 660036, Russia.
Fed Res Ctr KSC SB RAS, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Ronzhin, Nikita O.; Posokhina, Ekaterina D.; Mikhlina, Elena, V; Mikhlin, Yuri L.; Simunin, Mikhail M.; Tarasova, Lyudmila S.; Vorobyev, Sergey A.; Bondar, Vladimir S.; Ryzhkov, Ilya I.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-29-19078]

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