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241Am distribution in the biomass of freshwater macrophytes / T. A. Zotina [et al.] // Doklady Biological Sciences. - 2008. - Vol. 421, Is. 1. - P254-256, DOI 10.1134/S0012496608040108 . - ISSN 0012-4966
Кл.слова (ненормированные):
americium -- carbohydrate -- cellulose -- lipid -- nitrogen -- polysaccharide -- vegetable protein -- article -- biomass -- Bryopsida -- cell membrane -- cell wall -- chemistry -- cytoplasm -- food chain -- growth, development and aging -- Hydrocharitaceae -- metabolism -- Americium -- Biomass -- Bryopsida -- Carbohydrates -- Cell Membrane -- Cell Wall -- Cellulose -- Cytoplasm -- Food Chain -- Hydrocharitaceae -- Lipids -- Nitrogen -- Plant Proteins -- Polysaccharides

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

Доп.точки доступа:
Zotina, T.A.; Kalachova, G.S.; Bolsunovsky, A.Ya.; Degermendzhy, A.G.

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Biochemical fractionation and cellular distribution of americium and plutonium in the biomass of freshwater macrophytes / T. A. Zotina, G. S. Kalacheva, A. Y. Bolsunovsky // Journal of Radioanalytical and Nuclear Chemistry. - 2011. - Vol. 290, Is. 2. - P447-451, DOI 10.1007/s10967-011-1228-2 . - ISSN 0236-5731
Кл.слова (ненормированные):
238, 242Pu -- 241Am -- Carbohydrates -- Cellulose -- Fractionation -- Protein -- Submerged macrophyte -- americium 241 -- plutonium -- plutonium 238 -- plutonium 242 -- polysaccharide -- unclassified drug -- article -- bioaccumulation -- biomass -- cellular distribution -- Ceratophyllum demersum -- controlled study -- cytosol -- Elodea canadensis -- Fontinalis antipyretica -- fractionation -- freshwater species -- macrophyte -- moss -- Myriophyllum spicatum -- nonhuman -- plant cell -- radiation absorption -- radioactivity -- shoot
Аннотация: Accumulation of americium ( 241Am) and plutonium ( 238,242Pu) and their distribution in cell compartments and biochemical components of the biomass of freshwater aquatic plants Elodea canadensis, Ceratophyllum demersum and Myrioplyllum spicatum and aquatic moss Fontinalis antipyretica have been investigated in laboratory experiments. Americium and plutonium taken up from water by Elodea canadensis apical shoots were mainly absorbed by structural components of plant cells (90% for 241Am; 89% for 238Pu and 82-87% for 242Pu). About 10-18% of isotope activity was recorded in the cytosol fraction. The major concentration (76-92%) of americium was bound to cell wall cellulose-like polysaccharides of Elodea canadensis, Myriophyllum spicatum, Ceratophyllum demersum and Fontinalis antipyretica, 8-24% of americium activity was registered in the fraction of proteins and carbohydrates, and just a minor concentration (<1%) in the lipid fraction. The distribution of plutonium in the biomass fractions of Elodea was similar to that of americium. Hence, americium and plutonium had the highest affinity to cellulose-like polysaccharides of cell walls of freshwater submerged macrophytes. В© 2011 Akademiai Kiado, Budapest, Hungary.

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

Доп.точки доступа:
Zotina, T.A.; Kalacheva, G.S.; Bolsunovsky, A.Y.

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Possibility of Salicornia europaea use for the human liquid wastes inclusion into BLSS intrasystem mass exchange / N. A. Tikhomirova [et al.] // Acta Astronautica. - 2008. - Vol. 63, Is. 7-10. - P1106-1110, DOI 10.1016/j.actaastro.2008.01.003 . - ISSN 0094-5765
Кл.слова (ненормированные):
BLSS -- NaCl turnover -- Salicornia europaea -- Space biology -- Acids -- Amides -- Arsenic compounds -- Biochemical engineering -- Biochemistry -- Biomass -- Cellulose -- Curing -- Drying -- Environmental engineering -- Fatty acids -- Garnets -- Health -- Human engineering -- Lipids -- Mineralogy -- Minerals -- Mining -- Nitrates -- Nitrogen -- Plants (botany) -- Polysaccharides -- Polyvinyl alcohols -- Renewable energy resources -- Silica -- Silicate minerals -- Sodium -- Sodium chloride -- Solutions -- Sugar (sucrose) -- Sugars -- Waste utilization -- Biochemical composition -- Biochemical substances -- Bioregenerative life support systems (BLSS) -- Component conditions -- Crude protein (CP) -- Dry weight (DW) -- Essential fatty acids -- Europaea -- H igh concentrations -- Human urine -- Linoleic acid (LA) -- Linolenic -- Lipid content -- Liquid wastes -- Mass exchanges -- Mineral compositions -- Nitrate nitrogen -- Nitrogen nutrition -- Non saturation -- Physico chemical processes -- Plant functions -- Plant lipids -- Reduced nitrogen -- Salicornia europaea -- Soluble sugars -- Wide spectrum -- Nonmetals -- Amides -- Arsenic -- Biochemistry -- Biomass -- Biotechnology -- Cellulose -- Curing -- Drying -- Fatty Acids -- Lipids -- Nonmetals -- Plants -- Polysaccharides -- Sugars
Аннотация: One of the ways of solving the problem of the human liquid wastes utilization in bioregenerative life support systems (BLSS) can be the use of halophytic vegetable plant Salicornia europaea capable of accumulating sodium chloride in rather high concentrations. Since the most specific higher plant function in BLSS, which at present cannot be substituted by physicochemical processes, appears to be the biosynthesis of a wide spectrum of nutritive substances necessary for a human, the object of the given work was the investigation of the S. europaea productivity, biochemical and mineral composition when grown under close to optimal BLSS vegetative component conditions. As the use of human urine after its preliminary physicochemical processing is supposed to be the mineral solution basis for the S. europaea cultivation, it is necessary to clear up the effect of reduced nitrogen on plants growth. Ground research was carried out. Biochemical composition of the S. europaea edible part showed that crude protein was contained in the highest degree. At that the content of crude protein (24% per dry weight) and cellulose (4.7% per dry weight) was higher in the plants grown on solutions containing amide nitrogen in comparison with the plants grown on solutions with nitrate nitrogen (15.4%-3.1% correspondingly). The water-soluble sugar contents were not high in the S. europaea edible part and depending on the nitrogen nutrition form they amounted to 1.1% (amide nitrogen) and 1.5% (nitrate nitrogen). The polysaccharide number (except cellulose) was rather higher and varied from 7.7% to 8.2%. Although the lipid content in the S. europaea plants was relatively low (7% per dry weight), it was shown that the plant lipids are characterized by a high nonsaturation degree mainly due to alpha linolenic and linoleic acids. Nitrogen nutrition form did not significantly affect the S. europaea productivity, and dry edible biomass of one plant was 8.6 g. Sodium and its concentrations predominated in the plant mineral composition and amounted in average to 9% per dry weight. Thus the S. europaea being the vegetable plant it can be the source of several biochemical substances and essential fatty acids. The present work also considers the influence of nitrate and amide forms of nitrogen on S. europaea biochemical and mineral composition. В© 2008 Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
LGCB, Universite B. Pascal, CUST, BP206, 63174 Aubie're, cedex, France : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirova, N.A.; Ushakova, S.A.; Tikhomirov, A.A.; Kalacheva, G.S.; Gros, J.-B.

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Contrasting relationship between macro- and microviscosity of the gelatin- and starch-based suspensions and gels [Text] / D. V. Gulnov, E. V. Nemtseva, V. A. Kratasyuk // Polym. Bull. - 2016. - Vol. 73, Is. 12. - P3421-3435, DOI 10.1007/s00289-016-1664-9. - Cited References:42. - Authors thank Alexander Kheruvimov (REC "Composite Materials and Structures", SUSU, Chelyabinsk, Russia) for assistance in rheological experiments. The research was partially supported by the grants No. 11.G34.31.0058 and 1762 from The Ministry of Education and Science of the Russian Federation and by the state budget allocated to the fundamental research at the Russian Academy of Sciences (Project No. 01201351504). . - ISSN 0170-0839. - ISSN 1436-2449

РУБ Polymer Science
Рубрики:
FLUORESCENT MOLECULAR ROTORS
INTRACELLULAR VISCOSITY
DRUG-DELIVERY
Кл.слова (ненормированные):
Biopolymer -- Gelatin -- Starch -- Physical gel -- Microviscosity -- Molecular -- rotor
Аннотация: The problem of correlation between rheological properties in macro- and micro- scales of media with biopolymers of polypeptide (gelatin) and polysaccharide (starch) nature is investigated. The viscosity of the biopolymer solutions with concentrations 0.5-5 wt% was estimated by standard rotational rheometry technique and with fluorescent molecular rotor at 15-50 A degrees C. Opposite trends were observed for relationship between microviscosity eta (m) and macroviscosity eta for two biopolymers: eta (m) << eta for gelatin and eta (m) >> eta for starch solutions. The temperature dependence of eta (m) followed the monoexponential decay law in all samples over the whole temperature range indicating insensitivity of microviscosity to gel mesh melting under heating. The dissimilarity of macro- and micro-rheological properties of gelatin and starch-containing media is discussed in terms of difference in architecture of the gels.

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Держатели документа:
Siberian Fed Univ, Lab Bioluminescent Biotechnol, Krasnoyarsk 660041, Russia.
Inst Biophys SB RAS, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Gulnov, Dmitry V.; Nemtseva, Elena V.; Kratasyuk, Valentina A.; Ministry of Education and Science of the Russian Federation [11.G34.31.0058, 1762]; Russian Academy of Sciences [01201351504]

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Estimating levels of light emission and extracellular peroxidase activity of mycelium of luminous fungus Neonothopanus nambi treated with ?-glucosidase / O. A. Mogilnaya, N. O. Ronzhin, V. S. Bondar // Curr. Res. Environ. Appl. Mycol. J. Fungal. - 2018. - Vol. 8, Is. 1. - P75-85, DOI 10.5943/cream/8/1/6 . - ISSN 2229-2225
Кл.слова (ненормированные):
Basidiomycetes -- Cell wall -- Luminescence -- Polysaccharide sheath
Аннотация: The present study estimates the level of extracellular peroxidase activity and light emission intensity of mycelium of luminescent basidiomycete Neonothopanus nambi treated with ?-glucosidase. A hypothesis has been proposed that treatment with ?-glucosidase may trigger biochemical mechanisms of activation of ROS (primarily hydrogen peroxide) generation in N. nambi mycelium. The results obtained indicate that the enzyme causes partial disintegration of the slimy sheath of fungal hyphae and intracellular matrix, which leads to release of the extracellular peroxidases to the incubation medium. Mycelial cells treated with the enzyme reach the peak of their luminescence sooner. It has been assumed that partial loss of extracellular peroxidases, as important enzymes of antioxidant defense, may be compensated for by an increase in the level of light emission by the fungus. © 2018 Beijing Academy of Agriculture and Forestry Sciences.

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Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Science, Federal Research Center Krasnoyarsk Science Center SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Mogilnaya, O. A.; Ronzhin, N. O.; Bondar, V. S.

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Preparation, structure and magnetic properties of synthetic ferrihydrite nanoparticles / S. V. Stolyar [et al.] // Journal of Physics: Conference Series : Institute of Physics Publishing, 2018. - Vol. 994: 3rd International School and Workshop on Complex and Magnetic Soft Matter Systems: Structure and Physico - Mechanical Properties, CMSMS 2017 (28 June 2017 through 30 June 2017, ) Conference code: 135760, Is. 1, DOI 10.1088/1742-6596/994/1/012003
Кл.слова (ненормированные):
Magnetic properties -- Mechanical properties -- Nanoparticles -- Powders -- Sols -- Solutions -- Arabinogalactan -- Chemical deposition method -- Fe-ions -- Ferrihydrites -- Metallic state -- Nanoparticle sizes -- Superparamagnetics -- Ultrasonic treatments -- Nanomagnetics
Аннотация: Superparamagnetic ferrihydrite powders with average nanoparticle sizes of 2.5 nm produced by the chemical deposition method. Static and dynamic magnetic properties are measured. As a result of ultrasonic treatment in the cavitation regime of suspensions of ferrihydrite powders in a solution of the albumin protein, the Fe ions are reduced to the metallic state. A sol of ferrihydrite nanoparticles is prepared in an aqueous solution of arabinogalactan polysaccharide. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
International Scientific Centre for Organism Extreme States Research Attached Presidium of KSC, SB RAS, Krasnoyarsk, Russian Federation
Institute of Biophysics, SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Yaroslavtsev, R. N.; Bayukov, O. A.; Balaev, D. A.; Krasikov, A. A.; Iskhakov, R. S.; Vorotynov, A. M.; Ladygina, V. P.; Purtov, K. V.; Volochaev, M. N.

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Polysaccharide-coated iron oxide nanoparticles: Synthesis, properties, surface modification / S. V. Stolyar, V. V. Krasitskaya, L. A. Frank [et al.] // Mater Lett. - 2021. - Vol. 284. - Ст. 128920, DOI 10.1016/j.matlet.2020.128920 . - ISSN 0167-577X
Кл.слова (ненормированные):
Biomaterials -- Magnetic materials -- Nanoparticles -- Polysaccharide -- Iron oxides -- Magnetite -- Magnetite nanoparticles -- Molecules -- Polysaccharides -- Synthesis (chemical) -- Arabinogalactan -- Bioanalytical systems -- Covalent immobilization -- Iron oxide nanoparticle -- Magnetic nanoparticles
Аннотация: In this work, magnetite nanoparticles coated with polysaccharides were synthesized. Arabinogalactan and chitosan were used as polysaccharides. The possibilities of immobilization of biospecific molecules on the surface of the obtained composites were studied. Experiments on covalent immobilization of biospecific molecules on magnetic nanoparticles coated with a polysaccharide showed a high density of immobilized molecules. This suggests the use of such materials in bioanalytical systems or as affinity sorbents. © 2020 Elsevier B.V.

Scopus
Держатели документа:
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Biophysics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Astrakhan State University, Astrakhan, Russian Federation
University of Al-qasim Green, College of Biotechnology, Iraq

Доп.точки доступа:
Stolyar, S. V.; Krasitskaya, V. V.; Frank, L. A.; Yaroslavtsev, R. N.; Chekanova, L. A.; Gerasimova, Y. V.; Volochaev, M. N.; Bairmani, M. S.; Velikanov, D. A.

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Polysaccharide-coated iron oxide nanoparticles: Synthesis, properties, surface modification / S. V. Stolyar, V. V. Krasitskaya, L. A. Frank [et al.] // Mater. Lett. - 2021. - Vol. 284. - Ст. 128920, DOI 10.1016/j.matlet.2020.128920. - Cited References:12. - The reported study was carried out with the financial support of the Russian Foundation for Fundamental Research, the Government of the Krasnoyarsk Territory, the Krasnoyarsk Territory Fund for Support of Scientific and Technical Activity in the framework of scientific Project No. 18-43-243003. This work was supported by the Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific Schools (project no. MK-1263.2020.3). . - ISSN 0167-577X. - ISSN 1873-4979

РУБ Materials Science, Multidisciplinary + Physics, Applied

Кл.слова (ненормированные):
Nanoparticles -- Biomaterials -- Magnetic materials -- Polysaccharide
Аннотация: In this work, magnetite nanoparticles coated with polysaccharides were synthesized. Arabinogalactan and chitosan were used as polysaccharides. The possibilities of immobilization of biospecific molecules on the surface of the obtained composites were studied. Experiments on covalent immobilization of biospecific molecules on magnetic nanoparticles coated with a polysaccharide showed a high density of immobilized molecules. This suggests the use of such materials in bioanalytical systems or as affinity sorbents. (c) 2020 Elsevier B.V. All rights reserved.

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Держатели документа:
RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, KSC,SB, Krasnoyarsk, Russia.
RAS, Kirensky Inst Phys, Fed Res Ctr, KSC,SB, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
RAS, Inst Biophys, Fed Res Ctr, KSC,SB, Krasnoyarsk, Russia.
Astrakhan State Univ, Astrakhan, Russia.
Univ Al Qasim Green, Coll Biotechnol, Al Qasim, Iraq.

Доп.точки доступа:
Stolyar, S. V.; Krasitskaya, V. V.; Frank, L. A.; Yaroslavtsev, R. N.; Chekanova, L. A.; Gerasimova, Y. V.; Volochaev, M. N.; Bairmani, M. Sh.; Velikanov, D. A.; Russian Foundation for Fundamental ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory; Krasnoyarsk Territory Fund [18-43-243003]; Council of the President of the Russian Federation for State Support of Young Scientists and Leading Scientific SchoolsLeading Scientific Schools Program [MK-1263.2020.3]

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