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Growth and luminescence of luminous bacteria promoted by agents of microbial origin. / E. K. Rodicheva [et al.] // Journal of bioluminescence and chemiluminescence. - 1993. - Vol. 8, Is. 6. - P293-299 . - ISSN 0884-3996
Кл.слова (ненормированные):
amino acid -- carbohydrate -- folic acid -- luciferase -- nitrogen -- riboflavin -- article -- biosynthesis -- culture medium -- electron microscopy -- growth, development and aging -- kinetics -- luminescence -- metabolism -- Photobacterium -- physiology -- time -- ultrastructure -- Vibrio -- Amino Acids -- Carbohydrates -- Culture Media -- Folic Acid -- Kinetics -- Luciferase -- Luminescence -- Microscopy, Electron -- Nitrogen -- Photobacterium -- Riboflavin -- Time Factors -- Vibrio
Аннотация: The examination of four species of luminous bacteria Photobacterium leiognathi, Photobacterium phosphoreum, Vibrio fischeri and Vibrio harveyi has enabled us to reveal some nutrient medium components effecting growth, luminescence intensity and luciferase synthesis. These agents are nucleic components (nucleotides, nucleotides and amine bases), amino acids and vitamins, which are part of hydrolysates from the biomass of various lithotrophic microorganisms, hydrogen-oxidizing, iron-oxidizing and carboxydobacteria. The effect of promoting agents essentially alters the physiological state and ultrastructure of the cells of luminous bacteria and increases luciferase biosynthesis two- to three-fold compared to a control.

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

Доп.точки доступа:
Rodicheva, E.K.; Trubachev, I.N.; Medvedeva, S.E.; Egorova, O.I.; , U - Shitova LYu

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Evolution and present status of experimental manned ecological systems for long-term human life support - Bios, developed by the institute of biophysics of Russian academy of sciences in Krasnoyarsk (Siberia) / J. I. Gitelson, A. G. Degermendzhy // Proceedings of the International Astronautical Congress, IAC : International Astronautical Federation, IAF, 2015. - Vol. 1: 66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015 (12 October 2015 through 16 October 2015, ) Conference code: 122921. - P243-250
Кл.слова (ненормированные):
Arid regions -- Biochemistry -- Biospherics -- Plant shutdowns -- Proteins -- Reconfigurable hardware -- Closed ecological systems -- Corrective actions -- Essential proteins -- Extreme conditions -- Human intelligence -- Long-term experiments -- Physiological effects -- Russian Academy of Sciences -- Ecology
Аннотация: Closed ecological systems are of two-fold interest - as models of the Earth's biosphere explorable in experiments and as a facility for long-term autonomous human life support beyond the Earth. Theoretical analysis and experimental implementation of highly closed manned systems has been the subject of studies at the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) for many years. BIOS systems of increasing complexity with complete regeneration of atmosphere, water and partially food have been realized. In BIOS-3 experiments the system inhabited by 2-3 researchers for 4-6 months maintained its metabolic equilibrium without any negative physiological effect on the crew, which proves its sustainable condition. Specific for BIOS-3 is internal control by the people inhabiting the system. So, BIOS-3 is the first experimental implementation of V.l. Vernadsky's idea about the noosphere - habitable Biosphere controlled by human intelligence. Contrary to predictions of many environmentalists the closedness of the ecosystem is a factor that does not reduce, but increases its sustainability and makes its use for reliable life support outside the Earth realistic. The system is sustainable owing to permanent feedback between the monitoring of few key parameters of the system and automatic corrective actions on them. Main object of control is photo-biosynthesis regenerating parameters of human habitat disturbed by his vital activities. This principle has been realized in BIOS system and proved its reliability in long-term experiments. A new challenge is specified-optimal increase of trophic closedness of the system by reproduction within it essential proteins (peptides and amino acids), lipids, vitamins and other essential compounds. Alternative lines of attack on this problem by state-of-the-art biotechnological methods, GMO including, are under analysis. Reduced BIOS version - without complete closure - can be a breakthrough instrument to improve the quality of life of people living under extreme conditions on the Earth - in polar latitudes (Arctic, Antarctic), in deserts, in high mountains.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gitelson, J. I.; Degermendzhy, A. G.

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Computing-feasibility study of NASA nutrition requirements as applied to a bioregenerative life support system / V. S. Kovalev, N. S. Manukovsky, A. A. Tikhomirov // Acta Astronaut. - 2019. - Vol. 159. - P371-376, DOI 10.1016/j.actaastro.2019.04.001 . - ISSN 0094-5765
Кл.слова (ненормированные):
Constraint -- Food -- Modeling -- Nutrient -- Objective function -- Amino acids -- Animals -- Food products -- Models -- NASA -- Nutrients -- Nutrition -- Proteins -- Saturated fatty acids -- Uncertainty analysis -- Vitamins -- Bioregenerative life support systems -- Constraint -- Essential amino acids -- Independent variables -- Interpretation of models -- Long duration missions -- Lower and upper bounds -- Objective functions -- Life support systems (spacecraft)
Аннотация: In view of previous studies, a list of 46 foods designated for use in bioregenerative life support system was composed. With the help of a computer program, daily sets of foods of plant and animal origin were compiled from the list of foods. The objective function of modeling was intended to minimize the discrepancy between the calculated values of nutrients in daily food sets and NASA nutrition requirements for long-duration missions. The independent variables in the model were the masses of foods restricted by the lower and upper bounds. It was established that a food set is able to comprise 10-46 foods with violation of the NASA nutrition requirements for iron, vitamin B5 and vitamin D daily intakes. Inclusion of 9 foods in a set resulted in a further violation of the NASA standards concerning saturated fat. As the number of foods in a set has increased from 10 to 22, the objective function decreased from 1.0736 to 1.0332, followed by a gradual increase to 1.1233, when the maximum number of foods was selected from the list of foods. The source of uncertainty in the interpretation of modeling results are the standard NASA intakes of magnesium, potassium, zinc, manganese, vitamin C, thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, vitamin E, vitamin K and n-6 fatty acids, given as exact values. Varying the nutrient content of food sets did not significantly affect the value of the objective function. However, some solutions were infeasible, due to the violation of the NASA standard concerning saturated fat. Also, there were food sets in which the scores of sulfur-containing amino acids and threonine were below 100. In order to reliably maintain the scores of essential amino acids above 100 in a food set, it is necessary to maintain a mass ratio of “animal protein/total protein” equal to 2/3 in accordance with the requirement of NASA. © 2019 IAA

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Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kovalev, V. S.; Manukovsky, N. S.; Tikhomirov, A. A.

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Prolonged effects of nanodiamonds conjugated with corticosteroids / C. Kyu Rhee, A. E. Burov, A. P. Puzyr, V. S. Bondar // Appl Surf Sci. - 2021. - Vol. 551. - Ст. 149334, DOI 10.1016/j.apsusc.2021.149334 . - ISSN 0169-4332
Кл.слова (ненормированные):
Corticosteroids -- Delivery system -- Detonation nanodiamonds -- Modification -- Prolonged release -- Adsorption -- Controlled drug delivery -- Detonation -- Drug products -- Sodium compounds -- Suspensions (fluids) -- Targeted drug delivery -- Anti-inflammatory drugs -- Antineoplastic agents -- Aqueous suspensions -- Carrier for deliveries -- Detonation nanodiamonds -- Dexamethasone sodium phosphate -- Langmuir and freundlich adsorption -- Physical adsorption -- Nanodiamonds
Аннотация: The application of detonation nanodiamonds (DNDs) in delivery systems has been demonstrated many times for a variety of substances, including anti-inflammatory drugs, antibiotics, antineoplastic agents, vitamins etc. The applicability of detonation nanodiamonds as a carrier for delivery of corticosteroids is investigated in this study. Commercial DNDs were modified to obtain particles with high colloidal stability in aqueous suspensions. Physical adsorption was then used to conjugate the DNDs with methylprednisolone sodium succinate and dexamethasone sodium phosphate. The experimental adsorption isotherms were fit with Langmuir and Freundlich adsorption models. The results of in vitro release study demonstrated an explicit prolonged effect of DNDs, due to which a sustained release of the adsorbed drugs was provided. © 2021 Elsevier B.V.

Scopus
Держатели документа:
Korea Atomic Energy Research Institute, Daejeon, 34057, South Korea
Federal Research Center for Information and Computational Technologies, Krasnoyarsk, 660049, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kyu Rhee, C.; Burov, A. E.; Puzyr, A. P.; Bondar, V. S.

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Prolonged effects of nanodiamonds conjugated with corticosteroids / C. K. Rhee, A. E. Burov, A. P. Puzyr, V. S. Bondar // Appl. Surf. Sci. - 2021. - Vol. 551: 16th International Symposium on Novel and Nano Materials (ISNNM) (NOV 03-06, 2020, Jeju, SOUTH KOREA). - Ст. 149334, DOI 10.1016/j.apsusc.2021.149334. - Cited References:26. - The authors are grateful to Daewha Alloytech Co., Ltd (Republic of Korea) for financial support of the research. . - ISSN 0169-4332. - ISSN 1873-5584

РУБ Chemistry, Physical + Materials Science, Coatings & Films + Physics,
Рубрики:
BIOMEDICAL APPLICATIONS
SURFACE MODIFICATION
Кл.слова (ненормированные):
Detonation nanodiamonds -- Modification -- Corticosteroids -- Delivery system -- Prolonged release
Аннотация: The application of detonation nanodiamonds (DNDs) in delivery systems has been demonstrated many times for a variety of substances, including anti-inflammatory drugs, antibiotics, antineoplastic agents, vitamins etc. The applicability of detonation nanodiamonds as a carrier for delivery of corticosteroids is investigated in this study. Commercial DNDs were modified to obtain particles with high colloidal stability in aqueous suspensions. Physical adsorption was then used to conjugate the DNDs with methylprednisolone sodium succinate and dexamethasone sodium phosphate. The experimental adsorption isotherms were fit with Langmuir and Freundlich adsorption models. The results of in vitro release study demonstrated an explicit prolonged effect of DNDs, due to which a sustained release of the adsorbed drugs was provided.

WOS
Держатели документа:
Korea Atom Energy Res Inst, Daejeon 34057, South Korea.
Fed Res Ctr Informat & Computat Technol, Krasnoyarsk 660049, Russia.
Krasnoyarsk Sci Ctr SB RAS, Inst Biophys SB RAS, Fed Res Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Rhee, Chang Kyu; Burov, Andrey E.; Puzyr, Alexey P.; Bondar, Vladimir S.; Daewha Alloytech Co., Ltd (Republic of Korea)

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