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Journal articles on the topic 'Н2О2'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Алексеева, А. А., та С. В. Степанова. "ВЛИЯНИЕ РАСТВОРА ПЕРОКСИДА ВОДОРОДА НА СОРБЦИОННЫЕ СВОЙСТВА ЛИСТОВОГО ОПАДА ПО ОТНОШЕНИЮ К НЕФТИ". Всероссийская научно-практическая конференция «Географические исследования в контексте социально-экономического развития регионов», № 1 (1 червня 2022): 277–81. http://dx.doi.org/10.36684/68-2022-1-277-281.

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В работе исследовано влияние времени обработки листового опада 3 % раствором Н2О2 на его адсорбционные свойства по отношению к нефти. Показано, что модифицированный сорбционный материал, полученный в результате обработки 3 % раствором Н2О2 в течение 60 мин, обладает большими значениями водопоглощения34 % и нефтеемкости41 % по сравнению с исходным листовым опадом при времени контактирования 90 минут.

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Beisekova, M., S. Zhangazin, A. Kurmanbayeva, Zh Masalimov та A. Akbassova. "INFLUENCE OF TUNGSTEN AND MOLYBDENUM ON Н2О2 ACCUMULATION IN N.BENTHAMIANA PLANT". Eurasian Journal of Applied Biotechnology, № 4 (5 жовтня 2022): 58–62. http://dx.doi.org/10.11134/btp.4.2022.7.

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The problem of soil pollution with heavy metals is one of the main factors hindering the development of agriculture in Kazakhstan. Soil pollution with heavy metals, especially tungsten, leads to a deterioration in plant growth and development, the formation of active oxygen radicals, and oxidative stress. In plants, tungsten (W) acts as an inhibitor of molybdoenzymes, replacing molybdenum (Mo) in the Mo-cofactor structure. At the same time, Mo itself at high concentrations also negatively affects plant cells. When exposed to tungsten and molybdenum, reactive oxygen species (ROS) accumulate exc

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Ferapontov, Yu А., та D. V. Zhdanov. "Research into Physical and Chemical Properties of Triple System MeОН – Н2О2 – Н2О". Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta 21, № 4 (2015): 637–43. http://dx.doi.org/10.17277/vestnik.2015.04.pp.637-643.

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Dotsenko, Olga. "IN SILICO MODELING OF THE REDOX METABOLISM IN HUMAN ERYTHROCYTES." EUREKA: Life Sciences 1 (January 29, 2016): 39–46. http://dx.doi.org/10.21303/2504-5695.2016.00053.

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There was elaborated the mathematical model of erythrocytes metabolism, including glycolysis (Embden-Meyerhof pathway), pentose phosphate pathway, metHb restoration pathway, Н2О2 metabolism reaction. The final model includes 50 reactions and 60 metabolites. Within the model was studied the change of activity of some enzymes and concentrations of metabolites in stationary state, that take part in the processes of utilization of oxygen active forms and restoration of metgemoglobin, depending on amount of exogenous and endogenous Н2О2. There was demonstrated the threshold character of changes of

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Britsun, V. M., N. L. Tarasenko, N. O. Savina та N. V. Оstanina. "КОНТРОЛЬ ЗАЛИШКОВИХ КІЛЬКОСТЕЙ ПЕРОКСИДУ ВОДНЮ ПІСЛЯ ДЕЗІНФЕКЦІЇ ЛАБОРАТОРНОГО ПОСУДУ ТА ОБЛАДНАННЯ". Фармацевтичний часопис, № 2 (14 липня 2021): 21–27. http://dx.doi.org/10.11603/2312-0967.2021.2.12145.

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Мета роботи. Визначення залишкової концентрації пероксиду водню у дистильованій воді, яка відповідає вимогам ДФУ, і обгрунтування кількості промивної води, потрібної для повного видалення Н2О2 після дезінфекції лабораторного посуду і обладнання. Матеріали і методи. Вода деоінізована була отримана з системи Millipore Direct-Q 3 UV, вода дистильована – з аквадистилятора GFL2008. Використовувались розчини пероксиду водню 30% виробництва "Carlo Erba Reagents S.A.S" чистоти "For analysis ACS-Reag.Ph.Eur.-Reag.USP-Stabilized" і 35% кваліфікації "медичний" виробництва "УкрХім". Досліди здійснювались

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Томашик, В. Н., А. С. Кравцова, З. Ф. Томашик, И. Б. Стратийчук та С. Н. Галкин. "Химико-динамическое полирование поверхности кристаллов нелегированного и легированного ZnSe растворами системы Н2О2–HBr–Н2О". Неорганические материалы 49, № 10 (2013): 1045–49. http://dx.doi.org/10.7868/s0002337x13100126.

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Сирота, Т. В., та Н. П. Сирота. "К МЕХАНИЗМУ АКТИВАЦИИ КИСЛОРОДА В ХИМИЧЕСКИХ И БИОЛОГИЧЕСКИХ СИСТЕМАХ". Биофизика 67, № 1 (2022): 5–13. http://dx.doi.org/10.31857/s000630292201001x.

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Показано, что при активации кислорода в модельных химических и биологических системах, связанных с образованием супероксидных анион-радикалов (О2●─), происходит снижение содержания молекулярного кислорода в буфере. Рассмотрены следующие химические и ферментативные реакции: автоокисление адреналина в щелочной среде, система феназинметасульфат/НАДН, а также ксантин-ксантиноксидазная реакция. В процессе химического превращения субстрата в каждой из этих реакций наблюдалось потребление О2 из буфера, что приводило к созданию временных гипоксических условий. Анион-радикалы О2●─ идентифицировались с

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Abalenikhina, Yuliya V., Pelageya D. Erokhina, Adamiana A. Seidkuliyeva, Ol’ga A. Zav’yalova, Aleksey V. Shchul’kin, and Elena N. Yakusheva. "Intracellular Location and Function of Nuclear Factor of Erythroid Origin 2 (Nrf2) in Modeling Oxidative Stress <i>in vitro</i>." I.P. Pavlov Russian Medical Biological Herald 30, no. 3 (2022): 296–304. http://dx.doi.org/10.17816/pavlovj105574.

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INTRODUCTION: Nuclear factor E2-related factor 2 (Nrf2) is a member of capncollar (CNC) family of subfamily of leucine zipper transcription factors that regulates cell protection against toxic substances and oxidants. AIM: To determine location, mechanism of activation and role of Nrf2 in conditions of oxidative stress in vitro. MATERIALS AND METHODS: The study was performed on human colon adenocarcinoma cell line (Caco-2). Oxidative stress (OS) was modeled by adding hydrogen peroxide (Н2О2) at concentrations of 0.1 М100 М to the nutritive medium and incubation for 24 and 72 hours.

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Vakhrusheva, T. V., A. V. Sokolov, V. A. Kostevich, V. B. Vasilyev, and O. M. Panasenko. "Enzymatic and bactericidal activity of monomeric and dimeric forms of myeloperoxidase." Biomeditsinskaya Khimiya 64, no. 2 (2018): 175–82. http://dx.doi.org/10.18097/pbmc20186402175.

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This study was carried out to compare the enzymatic and bactericidal activity of mature, dimeric myeloperoxidase (MPO) and its monomeric form. Dimeric MPO was isolated from HL-60 cells. Hemi-MPO obtained from dimeric MPO by reductive cleavage of a disulfide bond between protomeric subunits was used as the monomeric form. Both peroxidase and halogenating (chlorinating) activities of MPO were assayed, each of them by two methods. Bactericidal activity of the MPO/Н2О2/Cl- system was tested using the Escherichia coli laboratory strain DH5a. No difference in the enzymatic and bactericidal activity

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Sidorova, T. A., E. Sh Solomko, Yu A. Khochenkova, A. A. Prokofieva, and D. A. Khochenkov. "THE VALUE OF BASAL EXPRESSION LEVEL OF HEMOXYGENASE-1 FOR SENSITIVITY OF HUMAN MELANOMA CELLS TO OXIDATIVE STRESS IN VITRO." Russian Journal of Biotherapy 19, no. 3 (2020): 38–45. http://dx.doi.org/10.17650/1726-9784-2020-19-3-38-45.

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Introduction. The molecular basis of radio- and photodynamic therapy (PDT), the mechanism of action of a number of antitumor chemotherapy drugs is oxidative stress (OS). The enzyme hemoxygenase-I (НO-1), a molecular marker of OS, is a key participant in the system of protection and adaptation of tumor cells under stress.Objective. To find out whether the sensitivity of human melanoma tumor cells to OS depends on the basal and modulator-induced levels of НO-1 expressionMaterial and methods. Human melanoma cell lines were used in the study. The expression of mRNA НO-1 in cells was studied by rea

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Blazheyevskiy, M. Ye, NN Boyko, and ОV Prysiazhniuk. "COMPARATIVE STUDY OF ANTIBACTERIAL ACTIVITY OF PEROXYDISUCCINIC ACID, HYDROGEN PEROXIDE AND THEIR MIXTURE." Annals of Mechnikov Institute, no. 2 (November 18, 2016): 43–49. https://doi.org/10.5281/zenodo.167493.

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Introduction. It is known that reactive oxygen species (ROS) generated in vivo by cell aerobic metabolism cause multiple damage in different cell organelles and kill not only obligate anaerobes and microaerophilles, but also aerobes. ROS generated by phagocytes and representatives of normal microflora are an important component of macroorganism defense from most pathogens, which is explained by their ability to damage different biological structures. ROS have high reactivity and let us use them in vitro as effective biocides. Hydrogen peroxide is widely used in many industries, in particular,

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AV, Reunov. "Effect of Exogenic Н2О2 on the Content of Endogenic Н2О2, the Activity of Catalase, Hydrolases, and on the Ultrastructure of Cells in Tobacco Leaves". Cell Biology & Cell Metabolism 2, № 1 (2015): 1–5. http://dx.doi.org/10.24966/cbcm-1943/100007.

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Бадовская, Л. А., та В. В. Посконин. "Влияние природы металла на каталитические реакции в системе фурфурол–Н2О2–Н2О–сольd-металла V или VI группы в кислых средах". Кинетика и катализ 56, № 2 (2015): 172–81. http://dx.doi.org/10.7868/s045388111502001x.

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Poleshko, A. G., and I. D. Volotovski. "The role of reactive oxygen species and nitric oxide in the realization of the adaptation mechanisms of bone-derived multipotent mesenchymal stromal cells to hypoxia under cultivation with growth factor bFGF." Genes & Cells 10, no. 2 (2015): 49–53. http://dx.doi.org/10.23868/gc120483.

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The simulation of conditions in vivo under cultivation the stem cells in vitro as well gas media content (low O2 concentrate) and different growth factors presence is one of the feasible way of growth rate of multipotent mesenchymal stromal cells (MMSC) culture increase when kept differentiation potential and maintained high viability. Oxygen metabolites: reactive oxygen (ROS) and nitrogen species are the most interesting for studying the influence of above characteristics on proliferation activity and viability of MMSC So it is currently important to identify ROS and NO role in MMSC by cooper

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Grigoryeva, Darya, Irina Gorudko, Veronika Lutsenko, Sergey Cherenkevich, Oleg Panasenko, and Aleksey Sokolov. "Evaluation of the Functional Condition of Human Blood Neutrophills Based on the Registrationof Active Halogen Forms Production." Vestnik Volgogradskogo Gosudarstvennogo Universiteta. Serija 11. Estestvennye nauki, no. 1 (August 2018): 44–48. http://dx.doi.org/10.15688/jvolsu11.2018.1.8.

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The development of adequate methods for monitoring the functional state of neutrophils is an urgent task due to their important role in the development of the inflammatory response. In this study, the functional activity of neutrophils has been assessed using a complex approach, including the registration of generation of ROS by neutrophils as a result of the functioning of the NADPH oxidase complex; degranulation of azurophilic granules; as well as production of AFG, formed in reactions catalyzed by the enzyme azurophilic granules of neutrophils – MPO in the presence of substrates (Н2О2 and h

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Schneider, B. V., S. V. Orlov, O. Yu Pushkina, and E. V. Zhmaeva. "Approaches of Sample Preparation of Catalysts for Oil Refining Processes to Determine Their Elemental Composition by Atomic Spectroscopy Methods." Chemistry and Technology of Fuels and Oils 633, no. 5 (2022): 58–60. http://dx.doi.org/10.32935/0023-1169-2022-633-5-58-60.

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Chemical sample preparation methods (such as high temperature fusion, autoclave decomposition and acid dissolutionin open systems) of catalysts for oil refining processes to determine their elemental composition by using Inductively coupled plasma atomic emission spectroscopy were considered. The influence of HNO3, H3PO4, H2SO4, Н2О2, Li2B4O7 necessaryfor the conversion of the catalysts into an solution on the value of the analytical signal for the some elements was studied.Regularities and features of various methods of sample preparation and their influence on the completeness of the transit

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Корниенко, В. Л., Г. А. Колягин, Г. В. Корниенко, В. А. Парфенов та А. А. Петин. "ЭЛЕКТРОСИНТЕЗ Н2О2 ИЗ О2 В ГАЗОДИФФУЗИОННЫХ ЭЛЕКТРОДАХ НА ОСНОВЕ САЖИ СН600, "Электрохимия"". Электрохимия, № 12 (2017): 1487–94. http://dx.doi.org/10.7868/s0424857017120027.

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Рашидова, Дилбар, Диларом Даминова та Барно Мирзамова. "ВЛИЯНИЕ РАЗЛИЧНЫХ ПРЕПАРАТОВ НА АКТИВНОСТЬ ФЕРМЕНТОВ ПРИ ПРОРАСТАНИИ СЕМЯН ХЛОПЧАТНИКА". Вестник Ошского государственного университета. Сельское хозяйство: агрономия, ветеринария и зоотехния, № 2(3) (30 червня 2023): 13–19. http://dx.doi.org/10.52754/16948696_2023_2_1.

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В статье представлены результаты исследований по определению активности ферментов в проростках хлопчатника, семена которых перед посевом были обработаны различными концентрациями препарата Экостимул, полученного на основе пероксида водорода Н2О2, и биологически активных препаратов Органик-1, Органик-2 (выделенных из стеблей дерезы, изогнутой - Licium flexicaule Pojark.) и Гледан (выделенного из семян гледичии G. tricanthos). Установлено, что применяемые препараты обладают стимулирующим действием на активность ферментов пероксидазы и каталазы и, что при действии препарата Экостимул (0,75%) во в

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Mironyuk, I., N. Danyliuk, L. Turovska, and I. Mykytyn. "Structural, morphological and photocatalytic properties of TiO2 obtained by thermolytic decomposition of the [Ti(OH2)6]3+•3Cl¯ aquacomplex." Physics and Chemistry of Solid State 23, no. 4 (2022): 741–55. http://dx.doi.org/10.15330/pcss.23.4.741-755.

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Thermolytic decomposition in a chloride-acid medium of a titanium aquacomplex precursor solution [Ti(OH2)6]3+•3Cl¯ as a result of its boiling at a temperature of (110-114) 0С is accompanied by precursor hydrolysis and the formation of hydrate molecules Ti(OH)3Cl•2Н2О, which, as a result of condensation, provide the formation of rutile ТіО2 with rod-shaped particles (30-80) nm long and (8-20) nm in diameter, combined into flower-shaped associates with a diameter of (200-280) nm. IR spectroscopic studies of the precursor hydrolysis products and the synthesized oxide material show that the geomet

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Kornienko, G. V., G. A. Kolyagin, V. L. Kornienko та V. A. Parfenov. "Graphitized carbon materials for electrosynthesis of Н2О2 from О2 in gas-diffusion electrodes". Russian Journal of Electrochemistry 52, № 10 (2016): 983–87. http://dx.doi.org/10.1134/s1023193516100074.

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Kornienko, V. L., G. A. Kolyagin, G. V. Kornienko, V. A. Parfenov та A. A. Petin. "Electrosynthesis of Н2О2 from О2 in Gas Diffusion Electrodes Based on Black СН600". Russian Journal of Electrochemistry 53, № 12 (2017): 1307–13. http://dx.doi.org/10.1134/s1023193517120059.

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Bachynskyi, Dmytro, and Vasyl Skrypko. "Changes in Endogenous Intoxication and Antioxidant Defense System Markers in Patients with Tumor-Induced Acute Colonic Obstruction." Archive of Clinical Medicine 29, no. 2 (2024): 25–28. http://dx.doi.org/10.21802/acm.2023.2.8.

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A comprehensive evaluation of clinical and biochemical markers defining the status of endotoxemia in patients diagnosed with acute colonic obstruction (ACO) was conducted. The findings revealed that advancing stages of ACO corresponded to an increase in serum levels of endogenous intoxication markers and a simultaneous decrease in antioxidant defense system (ADS) markers. The aim of the study was to analyze changes in endogenous intoxication and ADS markers in patients with tumor-induced ACO throughout the disease progression and evaluate the outcomes. Materials and Methods. The st

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Blazheyevskіy, Mykola Ye, Nataliia Yu Bondarenko, and Olena O. Mozgova. "The quantitative determination of glutathione by the effect of the chemiluminescence inhibition in the catalytic oxidation reaction of luminol with hydrogen peroxide in the presence of hemoglobin." Journal of Organic and Pharmaceutical Chemistry 20, no. 1(77) (2022): 51–56. http://dx.doi.org/10.24959/ophcj.22.255967.

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Aim. To develop a method for the quantitative determination of reduced glutathione in a lyophilized powder for the preparation of “Hepaval®” solution for intravenous and intramuscular administration by the effect of inhibiting chemiluminescence in the luminol (H2L)–Н2О2–hemoglobin (Hb) system.Materials and methods. The study object was the reduced glutathione substance and lyophilized powder for the preparation of “Hepaval®” solution for injection, ampoules of 4 mL No. 10 manufactured by “Valartin pharma” (Italy). The glutathione content in powder was determined using the chemiluminescence met

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Корниенко, В. Л., Г. А. Колягин, Г. В. Корниенко, В. А. Парфенов та И. В. Пономаренко. "ЭЛЕКТРОСИНТЕЗ Н2О2 ИЗ О2 В ГАЗОДИФФУЗИОННОМ ЭЛЕКТРОДЕ НА ОСНОВЕ МЕЗОСТРУКТУРИРОВАННОГО УГЛЕРОДА СМК-3, "Электрохимия"". Электрохимия, № 3 (2018): 299–306. http://dx.doi.org/10.7868/s0424857018030052.

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Сосновская, А. А., та В. Л. Флейшер. "ПОЛУЧЕНИЕ ТЕРПЕНОВЫХ КИСЛОРОДСОДЕРЖАЩИХ СОЕДИНЕНИЙ ЖИДКОФАЗНЫМ ОКИСЛЕНИЕМ α-ПИНЕНА КИСЛОРОДОМ ВОЗДУХА, КАТАЛИЗИРУЕМЫМ СИСТЕМОЙ Со2+ – Н2О2". ТРУДЫ БГТУ Серия 2, № 2 (247) 2021 (19 жовтня 2021): 60–66. http://dx.doi.org/10.52065/2520-2669-2021-247-2-60-66.

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Badovskaya, L. A., та V. V. Poskonin. "Rearrangements and Tautomeric Transformations of Heterocyclic Compounds in Homogeneous Reaction Systems Furfural–Н2О2–Solvent". Russian Journal of General Chemistry 88, № 8 (2018): 1568–79. http://dx.doi.org/10.1134/s1070363218080030.

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Chasovskikh, N. Yu. "Role of protein kinases JNK and p38 in regulation of mononuclear leucocytes apoptosis in oxidative stress." Bulletin of Siberian Medicine 7, no. 3 (2008): 38–43. http://dx.doi.org/10.20538/1682-0363-2008-3-38-43.

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Programmed cell death of peripheral blood mononuclear leucocytes taken from healthy donors and cultivated with various concentration of Н2О2, selective inhibitors of JNK (SP600125), 38 (ML3403) and in case of pneumonia was investigated. Intensification of intracellular production of reactive oxy р МАРК - gen species was accompanied by the increase in number of apoptotic and TNFR1-presented cells and mononuclears with reduced value of mitochondrial transmembrane potential in a case of oxidative stress induction with 1 mM hydrogen peroxide and in blood taken from patients with pneumonia. Action

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Subbotina, V. V., and V. V. Belozerov. "The effect of electrolysis conditions during microarc oxidation on the phase-structural state, hardness and corrosion resistance of magnesium alloys." Physics and Chemistry of Solid State 21, no. 3 (2020): 545–51. http://dx.doi.org/10.15330/pcss.21.3.545-551.

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By the method of microarc oxidation for different types of electrolytes (which include KOH, Na2SiO3, Н2О2, NaOH, NaAlO2, Na5P3O10, NaF) and electrolysis conditions, multifunctional ceramic coatings on a magnesium alloy were obtained. The phase composition of the coating includes magnesium oxide (MgO), spinel MgAl2O4, Mg2SiO4 and Мg3(РО4)2 compounds. The phase composition of the coatings is determined by the composition of the electrolyte. The obtained MAO coatings provide high hardness, which is 1500 to 7300 MPa, as well as high corrosion resistance. The results obtained make it possible to re

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Сазонова, Нелля Михайловна, А. В. Тарасюк, А. Н. Шумский та ін. "Синтез и биологические свойства нового дипептидного миметика 2-й петли мозгового нейротрофического фактора". Химико-фармацевтический журнал 52, № 9 (2018): 14–21. http://dx.doi.org/10.30906/0023-1134-2018-52-9-14-21.

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Сконструирован и синтезирован димерный дипептидный миметик 2-й петли мозгового нейротрофического фактора гексаметилендиамид бис-(N-гексаноил-серил-лизина), ГТС-201. Он обладает нейропротекторной активностью в концентрациях 10–5 – 10–8 М на культуре иммортализованных гиппокампальных нейронов линии НТ-22 в условиях окислительного стресса, вызванного Н2О2. Методом Вестерн-блот анализа показано, что он активирует TrkB рецепторы и Erk, но не активирует Akt. ГТС-201, в отличие от ранее синтезированного димерного дипептидного миметика 4-й петли ГСБ-106 не обнаруживал антидепрессивную активность в тес

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Grytsenko, Anatoly, Inna Tykha, Iryna Zinchenko, Olena Babich, and Iryna Yermakovych. "Decontamination of Biological Agents in Wastewater through Synergetic Oxidative Methods as an Effective Approach for Safeguarding Public Health and Aquatic Ecosystems." Chemistry & Chemical Technology 18, no. 3 (2024): 426–35. http://dx.doi.org/10.23939/chcht18.03.426.

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We employed a highly concentrated model of wastewater to conduct our research, accurately mimicking the composition of wastewater generated by milk processing enterprises. Wastewater contained milk protein, carbohydrates, and whey sugars. Domestic wastewater, which served as a source of indicator fecal microorganisms, was added to them. The water purification and disinfection scheme involved treating a model wastewater using the biosorption method with an immobilized biocenosis in a laboratory installation, followed by further purification and disinfection in a decontamination tank. In compari

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Авдонин, П. П., С. К. Труфанов, А. А. Цитрина, Е. Ю. Рыбакова, Н. В. Гончаров та П. В. Авдонин. "Использование конъюгированного c флуоресцентной меткой аптамера ARC1779 для оценки влияния Н2О2 на экзоцитоз фактора Виллебранда". Биохимия 86, № 2 (2021): 147–57. http://dx.doi.org/10.31857/s0320972521020019.

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Mikhailova, M. V., N. F. Belyaeva, N. I. Kozlova, K. V. Zolotarev, A. N. Mikhailov, and S. B. Podushka. "The Sturgeon Ovarian Liquid and the Perch Roe Extract are Able to Enhance the Recovery of the Fibroblasts after their Stress-induced Premature Senescence." Biomedical Chemistry: Research and Methods 1, no. 2 (2018): e00011. http://dx.doi.org/10.18097/bmcrm00011.

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Ovarian liquid and fish roe are valuable sources of biologically active compounds. In order to study mechanisms of aging and also to search for biologically active compounds capable of inhibiting aging, we have modelled premature senescence in human embryonic fibroblasts by incubating of cells with Н2О2. Cell senescence was assessed by staining for β-galactosidase (SA-β-Gal) at pH 6.0; cell proliferation was further evaluated by the optical method. The dried ovarian liquid of the Siberian sturgeon and the extract of the perch roe were able to enhance recovery of the cells after induction of th

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Garyntseva, Natalya V., Irina G. Sudakova, Anna I. Chudina, and Boris N. Kuznetsov. "Numerical Optimization of the Process of Cellulose Isolation by Peroxide Delignification of Birch Wood in Acetic Acid-Water Medium in the Presence of TiO₂ Catalyst." Journal of Siberian Federal University. Chemistry 14, no. 1 (2021): 120–32. http://dx.doi.org/10.17516/1998-2836-0222.

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The possibility of isolation of high-quality cellulose by peroxide delignification of birch wood in an acetic acid-water medium in the presence of a TiO2 catalyst at a temperature of 100 °C was shown. The influence of the process conditions (concentration of hydrogen peroxide and acetic acid, liquid/wood ratio (LWR)) on the yield and composition of cellulose products was established. Numerical optimization of the process was carried out using a full factorial experiment. The optimal conditions for isolation from birch wood a cellulose product with residual lignin content of ≤ 1 wt.% are: СН3СО

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Лапшина, Л. А., А. В. Реунов та В. П. Нагорская. "Влияние экзогенной Н2О2на содержание эндогенной Н2О2, активность каталазы, гидролаз и на ультраструктуру клеток в листьях табака". Известия Российской академии наук. Серия биологическая, № 5 (2016): 491–98. http://dx.doi.org/10.7868/s0002332916050052.

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Чан, Г., Ё. Луо, В. Лу, С. Квин та С. Сун. "Получение нановолокон полианилина, индуцированное углеродными наночастицами, и последующее их декорирование наночастицами Ag для неферментативного определения Н2О2". Электрохимия 50, № 1 (2014): 105–10. http://dx.doi.org/10.7868/s0424857013020047.

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Kornienko, V. L., G. A. Kolyagin, G. V. Kornienko, V. A. Parfenov та I. V. Ponomarenko. "Electrosynthesis of Н2О2 from О2 in a Gas-Diffusion Electrode Based on Mesostructured Carbon CMK-3". Russian Journal of Electrochemistry 54, № 3 (2018): 258–64. http://dx.doi.org/10.1134/s1023193518030060.

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Zubkov, M. Yu. "MODELING OF RESERVOIR FORMATION IN SILICEOUS LIMESTONES UNDER THE INFLUENCE OF HYDROTHERMAL FLUIDS (SERIES WITH H2O2, HCL AND SALTS)." Geology and mineral resources of Siberia, no. 1 (2021): 32–48. http://dx.doi.org/10.20403/2078-0575-2021-1-32-48.

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The results of modeling the formation of secondary reservoirs (hydrothermal silicites) in siliceous limestones with a wide areal distribution in the pre-Jurassic complex of Western Siberia, exposed to hydrothermal fluids in the H2O-H2O2, H2O-HCl and H2O-salt systems are considered. Experiments with the hydrogen peroxide were carried out at temperatures of 295 and 390°C and H2O2 concentrations from 29 to 43%. Experiments with hydrochloric acid were carried out at a temperature of 410°C, and its concentration varied from 0.05 to 1.0N. Experiments with salts were carried out at a temperature of 4

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Rotskaya, U. N., L. P. Ovchinnikova, E. A. Vasunina, et al. "Evaluation of cytotocicity and efficiency of antioxidant protection of hydrophilic derivatives of 2,4,6-trialkylphenols in Escherichia coli cells." Biomeditsinskaya Khimiya 57, no. 3 (2011): 326–34. http://dx.doi.org/10.18097/pbmc20115703326.

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The effects of five new derivatives of 2,6-dialkyl-4-propylphenole containing in para-radical different ionogenic groups (-SO3Na, -S-SO3Na, -S-(NH2)2Cl) in the presence and in the absence of hydrogen peroxide on the survival of E. coli AB1157 cells and its isogenic strain defective in repair enzyme genes were studied. Cell survival treated with hydrogen peroxide was remarkably increased in the presence of (3-(3,5-dimethyl-4-hydroxyphenyl)propyl)-1-sulphonate of sodium (С1). Replacement of methyl оrtho-radicals in the structure of С1 for tret-buthyl or cyclohexyl groups led to a decrease of the

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Ustskiy, I. M., V. A. Dyshko та O. A. Mykhailichenko. "Особливості проростання насіння та росту сіянців дерев сосни звичайної різної стійкості проти кореневої губки". Forestry and Forest Melioration, № 134 (26 листопада 2019): 154–61. http://dx.doi.org/10.33220/1026-3365.134.2019.154.

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У сосновому насадженні V класу віку обстежено стійкі та уражені кореневою губкою дерева в осередку всихання та неуражені – за його межами (контроль). Вивчали схожість та енергію проростання насіння, зібраного з цих дерев, ефективність його передпосівної обробки Н2О2 і КMnO4 та вимірювали біометричні показники проростків, вирощених у різних ґрунтових умовах. Насіння стійких дерев відзначається вищим класом якості, кращою енергією проростання та схожістю, ніж уражених, проте поступається їм за інтенсивністю росту проростків на початку онтогенезу. Відмінностей щодо впливів різних засобів дезінфек

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Антипова, Татьяна Алексеевна, Илья Олегович Логвинов, Сергей Владимирович Николаев та Оксана Сергеевна Григоркевич. "Сравнительное исследование активности дипептидных миметиков 4-й петли NGF крысы и человека <i>in vitro</i>". Экспериментальная и клиническая фармакология 87, № 9 (2024): 4–8. http://dx.doi.org/10.30906/0869-2092-2024-87-9-4-8.

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На модели окислительного стресса нейропротекторный эффект дипептидного миметика 4-й петли NGF крысы ГК-2 проявлялся при внесении за 24 ч до повреждения в интервале концентраций 10–5 – 10–10 М, а при внесении сразу после повреждения — в концентрациях 10–5 – 10–7 М. ГК-2(h) — дипептидный миметик 4-й петли NGF человека — защищал нейроны НТ-22 от окислительного стресса в концентрациях 10–5 – 10–7 М при внесении за 24 ч до Н2О2 и в концентрации 10–5 М после повреждающего фактора. На клеточной модели болезни Паркинсона ГК-2(h) защищал клетки SH-SY5Y от 6-OHDA при внесении за 24 ч до токсина в интерв

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Baik, O. L., N. Y. Kyyak, O. M. Humeniuk, and V. V. Humeniuk. "Oxidative stress in moss Bryum caespiticium (Bryaceae) under the influence of high temperature and light intensity in a technogenically transformed environment." Regulatory Mechanisms in Biosystems 12, no. 4 (2021): 710–17. http://dx.doi.org/10.15421/022198.

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Mosses are pioneer plants in post-technogenic areas. Therefore, the question of adaptive reactions of mosses from these habitats represents a scientific interest. The research is devoted to the study of adaptive changes in the metabolism of the dominant moss species Bryum caespiticium Hedw., collected in the devastated territories of the Novoyavorivsk State Mining and Chemical Enterprise (SMCE) “Sirka (Sulfur)” exposed to hyperthermia and insolation, which cause oxidative stress in plants. The influence of these stressors on the activity and thermal stability of antioxidant enzymes, hydrogen p

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Denysyuk, R. O. "Chemical treatment of monocrystalline cadmium telluride and Cd1-xMnxTe solid solutions by Н2О2–НІ–citric acid etchant compositions". Semiconductor physics, quantum electronics and optoelectronics 12, № 2 (2009): 125–28. http://dx.doi.org/10.15407/spqeo12.02.125.

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Михаилиди (Mikhailidi), Александра (Aleksandra) Михайловна (Mikhailovna), Вадим (Vadim) Иванович (Ivanovich) Маркин (Markin), Нина (Nina) Ефимовна (Efimovna) Котельникова (Kotel'nikova), and Shahriar Karim Saurov. "FUNCTIONAL MATERIALS FROM PAPER WASTES. I. FROM WASTE NEWSPRINT PAPER AND CARDBOARD TO HIGH-GRADE CELLULOSE FIBERS." chemistry of plant raw material, no. 2 (February 6, 2018): 27–35. http://dx.doi.org/10.14258/jcprm.2018023693.

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Utilization of paper wastes as renewable resource of lignocellulosic constituents has the opportunity to promote a cleaner environment and to prepare valuable materials. This paper describes our study on an isolation of low-fiber powder cellulose from two grades of wastes as feedstocks: waste newsprint paper and cardboard wrapper through recycling including a thermal defibration, an alkali treatment with a solution of NaOH with a concentration from 0.03 to 1.00 М, a bleaching with a solution of Н2О2 with a concentration from 0.8 to 2.6 М followed with an acid hydrolysis of the pretreated speci

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Kuznetsov, Boris Nikolayevich, Natal'ya Viktorovna Garyntseva, Irina Gennad'yevna Sudakova, Andrey Mikhaylovich Skripnikov, and Andrey Vladimirovich Pestunov. "HETEROGENEOUS CATALYTIC FRACTIONATION OF BIRCH-WOOD BIOMASS INTO MICROCRYSTALLINE CELLULOSE, XYLOSE AND ENTEROSORBENTS." chemistry of plant raw material, no. 4 (December 14, 2021): 105–18. http://dx.doi.org/10.14258/jcprm.20210410504.

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For the first time, it was proposed to fractionate the main components of birch wood into microcrystalline cellulose, xylose and enterosorbents by integrating heterogeneous catalytic processes of acid hydrolysis and peroxide delignification of wood biomass. The hydrolysis of wood hemicelluloses into xylose is carried out at a temperature of 150 °C in the presence of a solid acid catalyst Amberlyst® 15. Then the lignocellulosic product undergoes peroxide delignification in a "formic acid – water" medium in the presence of a solid TiO2 catalyst to obtain microcrystalline cellulose (MCC) and solu

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Lukasheva, E. V., Yu S. Ribakova, T. N. Fedorova, et al. "Effect of L-lysine alpha-oxidase from Trichoderma cf. aureoviride Rifai BKMF-4268D on pheochromocytoma PC12 cell line." Biomeditsinskaya Khimiya 61, no. 1 (2015): 99–104. http://dx.doi.org/10.18097/pbmc20156101099.

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L-Amino acid oxidases (L-ААО, EC 1.4.3.2) comprise a group of flavoproteins, catalyzing oxidative deamination of L-alpha amino acids to the corresponding alpha-keto acids, NH3 and Н2О2. In most cases these enzymes present homodimeric molecules with a molecular mass of 100-150 kDa, which were shown to possess antiviral, antifungal and antitumor activity. L-lysine alpha-oxidase (LO) holds an outstanding place among this group of enzymes and its biological role may differ significantly from the other L-AAO, because it cleaves an essential amino acid – L-lysine without significant action on the ot

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Tsaplin, Dmitry E., Vera A. Ostroumova, Leonid A. Kulikov, et al. "Synthesis and Investigation of Zeolite TiO2/Al-ZSM-12 Structure and Properties." Catalysts 13, no. 2 (2023): 216. http://dx.doi.org/10.3390/catal13020216.

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The textural, structural, morphological, and acidic properties of TiO2/Al-ZSM-12 zeolite synthesized viathe hydrothermal method and using methyltriethylammonium chloride as a template were studied in this study. The structure, size, and shape of the crystallites, and the acidity of the synthesized materials were investigated in detail using the following methods: XRD, low-temperature nitrogen adsorption–desorption, XRF, FTIR, Raman spectroscopy, DRS UV–Vis, DRIFTS, PL, SEM, TEM, solid-state NMR spectroscopy on 27Al, 1H, 29Si, 1H-29Si and 23Na nuclei, NH3-TPD, TG, DSC, DTA, FTIR-Py, FTIR-2,6-dT

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Степанова, Светлана Владимировна, Ильдар Гильманович Шайхиев та Владимир Александрович Сомин. "СОВЕРШЕНСТВОВАНИЕ ТЕХНОЛОГИИ РЕАГЕНТНОЙ ОЧИСТКИ СТОЧНЫХ ВОД ОТ КРАСИТЕЛЕЙ". Ползуновский вестник, № 1 (14 квітня 2025): 220–24. https://doi.org/10.25712/astu.2072-8921.2025.01.027.

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Окрашенные сточные воды образуются в промышленном производстве на многих предприятиях из-за попадания в их состав различных красителей. Особенно большой объем окрашенных стоков наблюдается при крашении тканей и кожи на предприятиях легкой промышленности. Сточные воды, содержащие красители, имеют высокие значения ХПК из-за значительного содержания в них органических веществ и не могут быть сброшены на биологические очистные сооружения из-за угрозы гибели биоценоза микроорганизмов активного ила. Данное обстоятельство требует локальной очистки окрашенных сточных вод в местах образования. Нами исс

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Sadygov, O. A., Kh M. Alimardanov, Sh I. Ismailova та N. R. Babaev. "One-Pot Synthesis of N-Substituted Alkylaminocyclohexanols by the Addition of Electrophiles Formed in situ in the System Н2О2 + HBr (HCl)". Russian Journal of General Chemistry 88, № 4 (2018): 650–57. http://dx.doi.org/10.1134/s1070363218040072.

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Фесенко, В. І., О. А. Глазунов та А. О. Глазунов. "УЧАСТЬ БАКТЕРІАЛЬНИХ ПРЕПАРАТІВ В КОМПЛЕКСНОМУ ЛІКУВАННІ КАНДИДОЗНОГО УРАЖЕННЯ СЛИЗОВОЇ ОБОЛОНКИ РОТОВОЇ ПОРОЖНИНИ (ОГЛЯД ЛІТЕРАТУРИ)". Інновації в стоматології, № 2 (30 жовтня 2024): 131–39. http://dx.doi.org/10.35220/2523-420x/2024.2.19.

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Резюме. В огляді літературних джерел представлені дані щодо сучасних поглядів на використання бактеріальних препаратів (пробіотики, пребіотики та синбіотики) при лікуванні грибкової інфекції ротової порожнини. Метою цього огляду було зібрати різні дослідження, зосереджені на механізмі дії пробіотичних штамів на Candida sp. та обговорити їх вплив на профілактику загострень та рецидиву кандидозу. Пробіотики застосовують при різних захворюваннях, що супроводжуються порушенням балансу в біотопах організму. Сучасні про біотичні препарати володіють кислото- та антибіотикостійкістю, підходять для вик

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Шаповалова, И. О., А. В. Вураско, and М. А. Агеев. "Catalase activity of natural and synthesized on technical cellulosesilicon dioxide." Известия СПбЛТА, no. 235 (June 1, 2021): 238–55. http://dx.doi.org/10.21266/2079-4304.2021.235.238-255.

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Дана оценка влияния свойств природного и синтезированного на технической целлюлозе из рисовой и овсяной шелухи диоксида кремния на каталазную активность диоксидсодержащих материалов. Техническую целлюлозу из шелухи получали окислительно-органосольвентным способом. Закрепление диоксида кремния на целлюлозе проводили золь-гель методом с применением тетраэтоксисилана. Свойства полученных диоксидсодержащих материалов оценивали: рентгеноструктурным анализом, методом тепловой десорбции азота, эмиссионным спектральным анализом с индукционно-связанной плазмой. Каталазную активность диоксидсодержащих м

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