Химические науки список научных статей
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ОПРЕДЕЛЕНИЕ СОДЕРЖАНИЯ АСКОРБИНОВОЙ КИСЛОТЫ В СОКАХ
в статье рассматривается тема качества яблочных соков, поставляемых на потребительский рынок несколькими производителями. В целом работа является хорошим дополнением к программному курсу химического анализа и имеет прикладное значение.
2023 / Любецкая Елена Владимировна
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Concentration Dependence of Optical Transmission and Extinction of Different Diatom Cultures
Diatoms are unicellular microalgae enclosed in a hierarchically structured silica cell wall that play a significant role in maintaining the health of the planet’s ecosystem. As one of the main photosynthesizers, they are responsible for 20–25% of the world’s oxygen release and carbon fixation. In...
2023 / Julijana Cvjetinovic, Sergei A. Perkov, Maxim A. Kurochkin, Igor S. Sergeev, Sergey V. German, Yekaterina D. Bedoshvili, Nickolai A. Davidovich, Alexander M. Korsunsky, Dmitry A. Gorin -
Inhibition of Self-Assembling Peptide Fibrils Formation Using Thioflavin T as a Photosensitizer
Misfolded proteins produce fibrillar aggregates, which contain β-sheet higher order structures. The oligomers, protofibrils, and fibrils generated during protein aggregation process are cytotoxic and can cause various neurodegenerative diseases. Recently the photo-active materials, the...
2023 / Tatiana N. Tikhonova, Anna A. Rubekina, Viktor A. Vorobev, Ekaterina A. Mefodeva, Eugene G. Maksimov, Yuri M. Efremov, Maxim E. Darvin, Peter S. Timashev, Peter V. Gorelkin, Alexander S. Erofeev, Nikolay N. Sysoev, Evgeny A. Shirshin -
Features of L-Menthol Crystallization in Optically Active Medium Based on Land D-Asparaginate Chitosan
The phase separation kinetics of an ethanolic L-menthol solution in an aqueous solution of optically and biologically active chitosan Land D-aspartate was studied. It has been established that this process proceeds according to the extraction crystallization mechanism and combines two types of...
2023 / Anna B. Shipovskaya, Natalia O. Gegel, Xenia M. Shipenok -
Molecular Aggregation of Aluminum Phthalocyanine Chloride in Organic and Water-Organic Media
The process of aluminum phthalocyanine chloride (AlClPc) aggregation in water and water-organic media was studied both by quantum mechanical theoretical calculations and experimental methods of optical absorption and fluorescence spectroscopy. The structures of AlClPc in the monomeric and dimerized ...
2023 / Inna V. Klimenko, Tatiana Yu. Astakhova, Elena N. Timokhina, Anton V. Lobanov -
Fabrication of Polyvinyl Alcohol Doped CuO Thin Films for Improved Amperometric-Non Enzymatic Hydrogen Peroxide Sensing
Nanotechnology is an emerging field in science and technology that primarily focus on nanoparticles ranging from 1–100 nm in diameter, which exhibit distinctive properties owing to their small size and large surface area. Among them, copper oxide nanostructures, are major metal oxide nanoparticles, ...
2023 / Navashree Nagarajan, Parthasarathy Panchatcharam -
ЭФФЕКТИВНЫЕ МЕТОДЫ ПЕРЕРАБОТКИ ОРГАНИЧЕСКИХ ОТХОДОВ МЕТОДОМ ПИРОЛИЗА С ПОЛУЧЕНИЕМ ТОПЛИВНОГО ГАЗА
В статье рассмотрены методы по разработке мероприятий по обезвреживаниями ликвидации твердых отходов нефтеперерабатывающих заводов, утилизации отходов по сокращению их образования в процессах переработки нефти и разработки экономичных промышленных методов утилизации. Предложено что, переработкой...
2023 / Икромов А. А., Эшмухамедов М. А. -
TARKIBIDA AZOT VA OLTINGUGURT BO‘LGAN NS-1 MARKADAGI OLIGOMER QO‘SHIMCHALARNI KORROZIYADAN HIMOYALASH DARAJASINI TADQIQ ETISH
Maqolada tarkibida azot va oltingugurt bo‘lgan NS-1 markadagi oligomer qo‘shimchalarni korroziyadan himoyalash darajasini tadqiq etildi. Tadqiqotlar natijasida korroziya uchun sarflangan dunyo miqyosidagi xarajatlari har bir iqtisodiy mintaqa uchun aniqlandi hamda neft mahsulotlarida korroziyadan...
2023 / Berdiev, S.A., Djalilov, A.T. -
КАФЕДРА НЕОРГАНИЧЕСКОЙ И ОРГАНИЧЕСКОЙ ХИМИИ
Кафедра неорганической и органической химии организована в Бурят-ском государственном университете с целью дальнейшей научной интеграции с Бу-рятским научным центром СО РАН и выполнения студентами дипломных работ на базе лабораторий химического профиля. Основу кафедры составляют выпускники ведущих...
2023 / Могнонов Д. М., Павлова Э. Т. -
ECOLOGY OF USED ENGINE OIL ADDINOL
Comprehensive spectroscopic studies of used and regenerated with chloric acid samples of ADDINOL engine oil were carried out. It was revealed that during the operation of engine oil, structural changes in hydrocarbon components, the formation of oxygen-containing compounds, and the accumulation of...
2023 / Elvira Guseinova, Gahraman Hasanov, Elman Akhyadov -
ИССЛЕДОВАНИЕ ВЛИЯНИЕ НЕКОТОРЫХ СОЛЕЙ АЛКИЛФЕНОЛСУЛЬФОКИСЛОТЫ (АФСК) НА КОРРОЗИЮ СТАЛИ МАРКИ С1-20 В ДВУХФАЗНОЙ СИСТЕМЕ 0,1 N ВОДНЫЙ РАСТВОР-КЕРОСИН В СОСТАВЕ КОНСЕРВАЦИОННЫХ ЖИДКОСТЕЙ
Методом гравиметрии исследовано влияние некоторых, а именно магниевой –, цинковойи бариевойсолей алкилфенолсульфокислоты (условно обозначенные нами как Mg НГПИ–2, Zn–НГПИ–2 и Ва–НГПИ -2. НГПИ-Нахчыванский Государственный Педагогический Институт, бывшее название Нахчыванского Государственного...
2023 / Алиев Тофиг Аббасали Оглы, Гасаноглу Яшар Мехмет Оглы, Мамедова Гюнел Аслан Кызы, Сеидова Фидан Фамил Кызы -
CИНТЕЗ (E)-1-[5-БРОМ-2-(ПРОП-2-ЕН-1-ИЛОКСИ)ФЕНИЛ]-NГИДРОКСИМЕТАНИМИН
В последние годы значительно возрос интерес исследователей к синтезу и изучению физико-химических и биологических свойств азот- и алкенилсодержащих фенолов. Исходя из этого целью данной работы явилась cинтез (e)-1[5-бром-2-(проп-2-ен-1-илокси)фенил]-n-гидроксиметанимина. Так же в качестве...
2023 / Ёрова Б. С., Курбонова Х., Махмадшоева Б. К. -
Efficient Approach to Functionalized β-Imidazolylporphyrins
The applicability of the Debus-Radziszewski condensation of 2-formylporphyrins with aromatic -diketones for the straightforward preparation of 2-functionalized porphyrin derivatives by means of the imidazole heterocyclic bridging unit was investigated in details. The successful transformation of...
2023 / Daria A. Polivanovskaia, Ekaterina S. Shremzera, Tatiana V. Voronova, Kirill P. Birin, Yulia G. Gorbunova, Aslan Yu. TsivadzeWOSScopusВАК -
Construction of Supramolecular Self-Assembled Frameworks Comprised of p-Nitrophenol and Four Modified Cucurbit[n]urils
Herein, we report the supramolecular self-assembly of fully substituted cyclopentyl-derived cucurbit[5]uril (CyP5Q[5]), cucurbit[6]uril (CyP6Q[6]), symmetrical dicyclopentyl-substituted cucurbit[6]uril (CyP2Q[6]) and fully substituted cyclobutyl-derived cucurbit[5]uril (CyB5Q[5]) with p-nitrophenol ...
2023 / Jun Zheng, Jiakang He, Linwei Yuan, Peihua MaWOSScopusВАК -
Dyades of Coproporphyrin I with Pyropheophorbides Bound by Azine Bridge
New asymmetric dyads consisting of porphyrin and chlorin components connected by an azine bridge have been obtained. Nickel and palladium complexes of tetramethyl ester of coproporphyrin I were used as porphyrin components, and chlorin was represented by methyl esters of pyropheophorbide a and d....
2023 / Alena O. Shkirdova, Vladimir S. Tyurin, Ilya A. ZamilatskovWOSScopusВАК -
Palladium-Catalyzed Amination for the Synthesis of Macrocycles and Polymacrocycles: Contribution of Professor I. P. Beletskaya
The present mini-review is dedicated to the contribution of the Full member of RAS Professor I.P. Beletskaya, a head of the Laboratory of Organoelement Compounds at the Department of Chemistry of the M.V. Lomonosov Moscow State University, to the strategy of the synthesis of versatile macrocyclic...
2023 / Alexei D. Averin, Anton S. Abel, Anna S. Malysheva, Nataliya M. Chernichenko, Alexei A. YakushevWOSScopusВАК -
Mg and Zn Complexes with Phosphonate Substituted β-Octaphenylporphyrin as Photocatalysts for Oxidation of Sulfides
Magnesium 2,3,7,8,12,13,17,18-octa[(4-diethoxyphosphoryl)phenyl]porphyrinate (MgOPPP) was prepared in a good yield by reacting the free-base porphyrin with magnesium acetate in DMF at 130 °C. The resulting complex was used as a catalyst for the selective photocatalytic oxidation of sulfides to...
2023 / Elizaveta V. Ermakova, Alla Bessmertnykh-LemeuneWOSScopusВАК -
Photophysical and Photochemical Properties of the Pyropheophorbide-Perylene-Pyropheophorbide Triad
A covalently-bonded structure (triad PP-PDI-PP) based on pyropheophorbide dye (PP, chlorin e6 derivative) and an organic non-fullerene acceptor, perylenediimide derivative (PDI), has been obtained. The triad has a pronounced absorption in the red region of the spectrum. Compared to the native dye,...
2023 / Alexei V. Kozlov, Lev R. Sizov, Alexander Yu. Rybkin, Olga I. Istakova, Dmitry V. Konev, Ekaterina A. Khakina, Mikhail O. Koifman, Nikolay S. GoryachevWOSScopusВАК -
N-Oxyethylimidazolium Calix[4]arenes and Thiacalix[4]arenes: Difference in Solubilization Property and Detection of Adenine-Containing Nucleotides
The properties of amphiphilic calix[4]arenes and thiacalix[4]arenes containing the same polar N-tetrahydroxyethylimidazolium groups on one side and alkyl fragments on the other side of the macrocyclic platform are shown. Critical aggregation concentration (CAC) values were studied with three...
2023 / Elza D. Sultanova, Bulat Kh. Gafiatullin, Evgeny A. Ocherednyuk, Ramilya I. Garipova, Anastasia A. Volodina, Amina G. Daminova, Vladimir G. Evtugyn, Vladimir A. Burilov, Svetlana E. Solovieva, Igor S. AntipinWOSScopusВАК -
Development of Iodine-Сontaining Natural Chlorins as Prototypes of Radiopharmaceuticals with Iodine Radionuclides
Many precursors for the development of various pharmaceutical substances, including the synthesis of radiopharmaceuticals (RPs), are known among natural structures. However, information about the application of natural compounds for the synthesis of such pharmaceutical agents is currently limited....
2023 / D. A. Minakov, N. V. Suvorov, S. I. Tikhonov, E. A. Plotnikova, A. D. Plyutinskaya, M. A. GrinWOSScopusВАК
