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High-Resolution NMR of the Hydrogenation Reaction with Parahydrogen in an Inhomogeneous Magnetic Field.
J Phys Chem Lett
January 2025
International Tomography Center, SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia.
Nuclear magnetic resonance is extremely attractive for operando studies of chemical reactors. However, the heterogeneous catalyst particles placed inside an NMR probe greatly affect the uniformity of the magnetic field. This problem is especially acute when studying heterogeneous hydrogenation processes using parahydrogen.
View Article and Find Full Text PDFMethane to Methanol Transformation on Cu2+/H-ZSM-5 Zeolite. Characterization of Copper State and Mechanism of the Reaction.
Chemistry
January 2025
Boreskov Institute of Catalysis SB RAS, Siberian Branch of Russian Academy of Sciences, RUSSIAN FEDERATION.
Cu-modified zeolites provide methane conversion to methanol with high selectivity under mild conditions. The activity of different possible Cu-sites for methane transformation is still under discussion. Herein, ZSM-5 zeolite has been loaded with Cu2+ cations (1.
View Article and Find Full Text PDFChanges in Levels of MiR-21, MiR-27a, MiR-221, and MiR-429 in the Thymus after Photodynamic Therapy and Surgical Treatment of Breast Cancer in Female Wistar Rats.
Bull Exp Biol Med
January 2025
Research Institute of Clinical and Experimental Lymphology - Branch of Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.
We studied the expression levels of microRNAs (miR-21, miR-27a, miR-221, and miR-429) in the thymus of female Wistar rats after surgical treatment of breast cancer (BC) and after photodynamic therapy for BC followed by tumor resection. In the group without treatment, the levels of pro-oncogenic miR-21, miR-27a, and miR-221 in the thymus were reduced in comparison with those in the group of intact control. After surgical treatment of BC, the levels of miR-21 and miR-27a in the thymus increased in comparison with those in BC without treatment.
View Article and Find Full Text PDFFirst record of the genus Tshernyshev, 2009 (Coleoptera, Malachiidae) from China.
Biodivers Data J
December 2024
The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, 071002, Baoding, China The Key Laboratory of Zoological Systematics and Application, School of Life Science, Institute of Life Science and Green Development, Hebei University, 071002 Baoding China.
Background: Tshernyshev, 2009 is a small genus belonging to the tribe Malachiini in the family Malachiidae of the order Coleoptera, with six currently known species: (Erichson, 1840) from Central, Eastern and Southern Europe and North Africa; (Abeille de Perrin, 1885) from Central Europe to Central Asia; Ezzatpanah, 2011 from Iran; (Tshernyshev, 2000) from Uzbekistan and Kyrgyzstan; (Medvedev, 1964) from Kazakstan, Russia and Mongolia; (Medvedev, 1964) from Kazakhstan and Turkey.
New Information: In this study, Tshernyshev, 2009 is newly recorded from China upon the discovery of (Medvedev, 1964) from Xinjiang Autonomous Region. The adult morphological characters are re-described in detail with illustrations of external appearance and relevant characters.
Nanoclusters of Guest Molecules in Lipid Rafts of a Model Membrane Revealed by Pulsed Dipolar EPR Spectroscopy.
J Phys Chem B
January 2025
Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Novosibirsk 630090, Russia.
Plasma membranes are known to segregate into liquid disordered and ordered nanoscale phases, the latter being called lipid rafts. The structure, lipid composition, and function of lipid rafts have been the subject of numerous studies using a variety of experimental and computational methods. Double electron-electron resonance (DEER, also known as PELDOR) is a member of the pulsed dipole EPR spectroscopy (PDS) family of techniques, allowing the study of nanoscale distances between spin-labeled molecules.
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