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Ponomareva N, Brezgin S, Karandashov I, Kostyusheva A, Demina P, Slatinskaya O, Bayurova E, Silachev D, Pokrovsky VS, Gegechkori V, Khaydukov E, Maksimov G, Frolova A, Gordeychuk I, Zamyatnin AA, Chulanov V, Parodi A, Kostyushev D. Swelling, Rupture and Endosomal Escape of Biological Nanoparticles Per Se and Those Fused with Liposomes in Acidic Environment. Pharmaceutics 2024; 16:667. [PMID: 38794330 DOI: 10.3390/pharmaceutics16050667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/06/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Biological nanoparticles (NPs), such as extracellular vesicles (EVs), exosome-mimetic nanovesicles (EMNVs) and nanoghosts (NGs), are perspective non-viral delivery vehicles for all types of therapeutic cargo. Biological NPs are renowned for their exceptional biocompatibility and safety, alongside their ease of functionalization, but a significant challenge arises when attempting to load therapeutic payloads, such as nucleic acids (NAs). One effective strategy involves fusing biological NPs with liposomes loaded with NAs, resulting in hybrid carriers that offer the benefits of both biological NPs and the capacity for high cargo loads. Despite their unique parameters, one of the major issues of virtually any nanoformulation is the ability to escape degradation in the compartment of endosomes and lysosomes which determines the overall efficiency of nanotherapeutics. In this study, we fabricated all major types of biological and hybrid NPs and studied their response to the acidic environment observed in the endolysosomal compartment. In this study, we show that EMNVs display increased protonation and swelling relative to EVs and NGs in an acidic environment. Furthermore, the hybrid NPs exhibit an even greater response compared to EMNVs. Short-term incubation of EMNVs in acidic pH corresponding to late endosomes and lysosomes again induces protonation and swelling, whereas hybrid NPs are ruptured, resulting in the decline in their quantities. Our findings demonstrate that in an acidic environment, there is enhanced rupture and release of vesicular cargo observed in hybrid EMNVs that are fused with liposomes compared to EMNVs alone. This was confirmed through PAGE electrophoresis analysis of mCherry protein loaded into nanoparticles. In vitro analysis of NPs colocalization with lysosomes in HepG2 cells demonstrated that EMNVs mostly avoid the endolysosomal compartment, whereas hybrid NPs escape it over time. To conclude, (1) hybrid biological NPs fused with liposomes appear more efficient in the endolysosomal escape via the mechanism of proton sponge-associated scavenging of protons by NPs, influx of counterions and water, and rupture of endo/lysosomes, but (2) EMNVs are much more efficient than hybrid NPs in actually avoiding the endolysosomal compartment in human cells. These results reveal biochemical differences across four major types of biological and hybrid NPs and indicate that EMNVs are more efficient in escaping or avoiding the endolysosomal compartment.
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Affiliation(s)
- Natalia Ponomareva
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Department of Pharmaceutical and Toxicological Chemistry, Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Sergey Brezgin
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Ivan Karandashov
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Anastasiya Kostyusheva
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Polina Demina
- Institute of Physics, Technology, and Informational Systems, Moscow Pedagogical State University, Malaya Pirogovskaya St. 1, 119435 Moscow, Russia
- National Research Centre "Kurchatov Institute", Akademika Kurchatova Sq. 1, 123182 Moscow, Russia
| | - Olga Slatinskaya
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Ekaterina Bayurova
- Chumakov Federal Scientific Center for Research and Development of Immunobiological Products, Russian Academy of Sciences (Polio Institute), 108819 Moscow, Russia
| | - Denis Silachev
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vadim S Pokrovsky
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
- Department of Biochemistry, People's Friendship University, 117198 Moscow, Russia
| | - Vladimir Gegechkori
- Department of Pharmaceutical and Toxicological Chemistry, Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Evgeny Khaydukov
- Institute of Physics, Technology, and Informational Systems, Moscow Pedagogical State University, Malaya Pirogovskaya St. 1, 119435 Moscow, Russia
- National Research Centre "Kurchatov Institute", Akademika Kurchatova Sq. 1, 123182 Moscow, Russia
| | - Georgy Maksimov
- Faculty of Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Anastasia Frolova
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Ilya Gordeychuk
- Chumakov Federal Scientific Center for Research and Development of Immunobiological Products, Russian Academy of Sciences (Polio Institute), 108819 Moscow, Russia
| | - Andrey A Zamyatnin
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Vladimir Chulanov
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- Department of Infectious Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Alessandro Parodi
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Dmitry Kostyushev
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119234 Moscow, Russia
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Permiakova O, Pankratov S, Isaev A, Miakonkikh A, Chesnokov Y, Lomov A, Rogozhin A. Setting Plasma Immersion Ion Implantation of Ar + Parameters towards Electroforming-Free and Self-Compliance HfO 2-Based Memristive Structures. Nanomaterials (Basel) 2024; 14:831. [PMID: 38786787 DOI: 10.3390/nano14100831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/23/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
Memristive structures are among the most promising options to be components of neuromorphic devices. However, the formation of HfO2-based devices in crossbar arrays requires considerable time since electroforming is a single stochastic operation. In this study, we investigate how Ar+ plasma immersion ion implantation (PI) affects the Pt/HfO2 (4 nm)/HfOXNY (3 nm)/TaN electroforming voltage. The advantage of PI is the simultaneous and uniform processing of the entire wafer. It is thought that Ar+ implantation causes defects to the oxide matrix, with the majority of the oxygen anions being shifted in the direction of the TaN electrode. We demonstrate that it is feasible to reduce the electroforming voltages from 7.1 V to values less than 3 V by carefully selecting the implantation energy. A considerable decrease in the electroforming voltage was achievable at an implantation energy that provided the dispersion of recoils over the whole thickness of the oxide without significantly affecting the HfOXNY/TaN interface. At the same time, Ar+ PI at higher and lower energies did not produce the same significant decrease in the electroforming voltage. It is also possible to obtain self-compliance of current in the structure during electroforming after PI with energy less than 2 keV.
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Affiliation(s)
- Olga Permiakova
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
| | - Sergey Pankratov
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
| | - Alexandr Isaev
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
| | - Andrew Miakonkikh
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
| | - Yuri Chesnokov
- National Research Centre "Kurchatov Institute", 1 Akademika Kurchatova Sq., Moscow 123182, Russia
| | - Andrey Lomov
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
| | - Alexander Rogozhin
- Valiev Institute of Physics and Technology of RAS, 36/1 Nakhimovsky av., Moscow 117218, Russia
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Karandashov I, Kachanov A, Dukich M, Ponomareva N, Brezgin S, Lukashev A, Pokrovsky VS, Chulanov V, Kostyusheva A, Kostyushev D. m 6A Methylation in Regulation of Antiviral Innate Immunity. Viruses 2024; 16:601. [PMID: 38675942 PMCID: PMC11054785 DOI: 10.3390/v16040601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The epitranscriptomic modification m6A is a prevalent RNA modification that plays a crucial role in the regulation of various aspects of RNA metabolism. It has been found to be involved in a wide range of physiological processes and disease states. Of particular interest is the role of m6A machinery and modifications in viral infections, serving as an evolutionary marker for distinguishing between self and non-self entities. In this review article, we present a comprehensive overview of the epitranscriptomic modification m6A and its implications for the interplay between viruses and their host, focusing on immune responses and viral replication. We outline future research directions that highlight the role of m6A in viral nucleic acid recognition, initiation of antiviral immune responses, and modulation of antiviral signaling pathways. Additionally, we discuss the potential of m6A as a prognostic biomarker and a target for therapeutic interventions in viral infections.
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Affiliation(s)
- Ivan Karandashov
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
| | - Artyom Kachanov
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
| | - Maria Dukich
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
- Faculty of Virology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Natalia Ponomareva
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Department of Pharmaceutical and Toxicological Chemistry, Sechenov First Moscow State Medical University, 119048 Moscow, Russia
| | - Sergey Brezgin
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Alexander Lukashev
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
| | - Vadim S. Pokrovsky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia;
- Blokhin National Medical Research Center of Oncology, 117198 Moscow, Russia
- Faculty of Biochemistry, RUDN University, 117198 Moscow, Russia
| | - Vladimir Chulanov
- Department of Infectious Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia;
| | - Anastasiya Kostyusheva
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
| | - Dmitry Kostyushev
- Laboratory of Genetic Technologies, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), 119048 Moscow, Russia; (I.K.); (A.K.); (M.D.); (N.P.); (S.B.); (A.L.)
- Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Faculty of Bioengineering and Biotechnologies, Lomonosov Moscow State University, 119234 Moscow, Russia
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Kholodilov IS, Aibulatov SV, Khalin AV, Polienko AE, Klimentov AS, Belova OA, Rogova AA, Medvedev SG, Karganova GG. Orthoflavivirus Lammi in Russia: Possible Transovarial Transmission and Trans-Stadial Survival in Aedes cinereus (Diptera, Culicidae). Viruses 2024; 16:527. [PMID: 38675870 PMCID: PMC11054007 DOI: 10.3390/v16040527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
In the last few years, there has been a dramatic increase in the number of discovered viruses that are transmitted by arthropods. Some of them are pathogenic for humans and mammals, and the pathogenic potential of others is unknown. The genus Orthoflavivirus belongs to the family Flaviviridae and includes arboviruses that cause severe human diseases with damage to the central nervous system and hemorrhagic fevers, as well as viruses with unknown vectors and viruses specific only to insects. The latter group includes Lammi virus, first isolated from a mosquito pool in Finland. It is known that Lammi virus successfully replicates in mosquito cell lines but not in mammalian cell cultures or mice. Lammi virus reduces the reproduction of West Nile virus during superinfection and thus has the potential to reduce the spread of West Nile virus in areas where Lammi virus is already circulating. In this work, we isolated Lammi virus from a pool of adult Aedes cinereus mosquitoes that hatched from larvae/pupae collected in Saint Petersburg, Russia. This fact may indicate transovarial transmission and trans-stadial survival of the virus.
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Affiliation(s)
- Ivan S. Kholodilov
- Laboratory of Biology of Arboviruses, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia; (A.E.P.); (O.A.B.); (A.A.R.); (G.G.K.)
| | - Sergey V. Aibulatov
- Laboratory for the Study of Parasitic Arthropods, Zoological Institute of Russian Academy of Sciences, 199034 St. Petersburg, Russia; (S.V.A.); (A.V.K.); (S.G.M.)
| | - Alexei V. Khalin
- Laboratory for the Study of Parasitic Arthropods, Zoological Institute of Russian Academy of Sciences, 199034 St. Petersburg, Russia; (S.V.A.); (A.V.K.); (S.G.M.)
| | - Alexandra E. Polienko
- Laboratory of Biology of Arboviruses, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia; (A.E.P.); (O.A.B.); (A.A.R.); (G.G.K.)
| | - Alexander S. Klimentov
- Laboratory of Biochemistry, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia;
| | - Oxana A. Belova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia; (A.E.P.); (O.A.B.); (A.A.R.); (G.G.K.)
| | - Anastasiya A. Rogova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia; (A.E.P.); (O.A.B.); (A.A.R.); (G.G.K.)
| | - Sergey G. Medvedev
- Laboratory for the Study of Parasitic Arthropods, Zoological Institute of Russian Academy of Sciences, 199034 St. Petersburg, Russia; (S.V.A.); (A.V.K.); (S.G.M.)
| | - Galina G. Karganova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia; (A.E.P.); (O.A.B.); (A.A.R.); (G.G.K.)
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, 119146 Moscow, Russia
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Tameev AR, Aleksandrov AE, Sayarov IR, Pozin SI, Lypenko DA, Dmitriev AV, Nekrasova NV, Chernyadyev AY, Tsivadze AY. Charge Carrier Mobility in Poly(N,N'-bis-4-butylphenyl-N,N'-bisphenyl)benzidine Composites with Electron Acceptor Molecules. Polymers (Basel) 2024; 16:570. [PMID: 38475254 DOI: 10.3390/polym16050570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/10/2024] [Accepted: 02/17/2024] [Indexed: 03/14/2024] Open
Abstract
Polymer composites based on poly(N,N'-bis-4-butylphenyl-N,N'-bisphenyl)benzidine (poly-TPD) with PCBM and copper(II) pyropheophorbide derivative (Cu-PP) were developed. In thin films of the poly-TPD and Cu-PP composites, the charge carrier mobility was investigated for the first time. In the ternary poly-TPD:PCBM:Cu-PP composite, the electron and hole mobilities are the most balanced compared to binary composites and the photoconductivity is enhanced due to the sensitization by Cu-PP in blue and red spectral ranges. The new composites are promising for use in the development of photodetectors.
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Affiliation(s)
- Alexey R Tameev
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Alexey E Aleksandrov
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Ildar R Sayarov
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Sergey I Pozin
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Dmitry A Lypenko
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Artem V Dmitriev
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Natalia V Nekrasova
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Andrey Yu Chernyadyev
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Leninsky Prosp., 31, Bld. 4, 119071 Moscow, Russia
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Kormschikov ID, Polovkova MA, Kirakosyan GA, Martynov AG, Gorbunova YG, Tsivadze AY. Magnetic Anisotropy of Homo- and Heteronuclear Terbium(III) and Dysprosium(III) Trisphthalocyaninates Derived from Paramagnetic 1H-NMR Investigation. Molecules 2024; 29:510. [PMID: 38276588 DOI: 10.3390/molecules29020510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/13/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
1H-NMR spectroscopy of lanthanide complexes is a powerful tool for deriving spectral-structural correlations, which provide a clear link between the symmetry of the coordination environment of paramagnetic metal centers and their magnetic properties. In this work, we have first synthesized a series of homo- (M = M* = Dy) and heteronuclear (M ≠ M* = Dy/Y and Dy/Tb) triple-decker complexes [(BuO)8Pc]M[(BuO)8Pc]M*[(15C5)4Pc], where BuO- and 15C5- are, respectively, butoxy and 15-crown-5 substituents on phthalocyanine (Pc) ligands. We provide an algorithmic approach to assigning the 1H-NMR spectra of these complexes and extracting the axial component of the magnetic susceptibility tensor, χax. We show how this term is related to the nature of the lanthanide ion and the shape of its coordination polyhedron, providing an experimental basis for further theoretical interpretation of the revealed correlations.
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Affiliation(s)
- Ilya D Kormschikov
- Faculty of Chemistry, Lomonosov Moscow State University, GSP-1, Leninskie Gory, 119991 Moscow, Russia
| | - Marina A Polovkova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
| | - Gayane A Kirakosyan
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
| | - Alexander G Martynov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
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Zhizhin KY, Turyshev ES, Shpigun LK, Gorobtsov PY, Simonenko NP, Simonenko TL, Kuznetsov NT. Poly(vinyl chloride)/Nanocarbon Composites for Advanced Potentiometric Membrane Sensor Design. Int J Mol Sci 2024; 25:1124. [PMID: 38256194 PMCID: PMC10816362 DOI: 10.3390/ijms25021124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Polymer nanocomposites filled with carbon nanoparticles (CNPs) are a hot topic in materials science. This article discusses the current research on the use of these materials as interfacial electron transfer films for solid contact potentiometric membrane sensors (SC-PMSs). The results of a comparative study of plasticized poly (vinyl chloride) (pPVC) matrices modified with single-walled carbon nanotubes (SWCNTs), fullerenes-C60, and their hybrid ensemble (SWCNTs-C60) are reported. The morphological characteristics and electrical conductivity of the prepared nanostructured composite films are reported. It was found that the specific electrical conductivity of the pPVC/SWCNTs-C60 polymer film was higher than that of pPVC filled with individual nanocomponents. The effectiveness of this composite material as an electron transfer film in a new potentiometric membrane sensor for detecting phenylpyruvic acid (in anionic form) was demonstrated. Screening for this metabolic product of phenylalanine in body fluids is of significant diagnostic interest in phenylketonuria (dementia), viral hepatitis, and alcoholism. The developed sensor showed a stable and fast Nernstian response for phenylpyruvate ions in aqueous solutions over the wide linear concentration range of 5 × 10-7-1 × 10-3 M, with a detection limit of 10-7.2 M.
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Affiliation(s)
| | - Evgeniy S. Turyshev
- N. S. Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, 119991 Moscow, Russia; (K.Y.Z.); (P.Y.G.); (N.P.S.); (T.L.S.)
| | - Liliya K. Shpigun
- N. S. Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, 119991 Moscow, Russia; (K.Y.Z.); (P.Y.G.); (N.P.S.); (T.L.S.)
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Abramova AV, Kozlov DA, Veselova VO, Kozlova TO, Ivanova OS, Mikhalev ES, Voytov YI, Baranchikov AE, Ivanov VK, Cravotto G. Coating of Filter Materials with CeO 2 Nanoparticles Using a Combination of Aerodynamic Spraying and Suction. Nanomaterials (Basel) 2023; 13:3168. [PMID: 38133066 PMCID: PMC10745644 DOI: 10.3390/nano13243168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Textiles and nonwovens (including those used in ventilation systems as filters) are currently one of the main sources of patient cross-infection. Healthcare-associated infections (HAIs) affect 5-10% of patients and stand as the tenth leading cause of death. Therefore, the development of new methods for creating functional nanostructured coatings with antibacterial and antiviral properties on the surfaces of textiles and nonwoven materials is crucial for modern medicine. Antimicrobial filter technology must be high-speed, low-energy and safe if its commercialization and mass adoption are to be successful. Cerium oxide nanoparticles can act as active components in these coatings due to their high antibacterial activity and low toxicity. This paper focuses on the elaboration of a high-throughput and resource-saving method for the deposition of cerium oxide nanoparticles onto nonwoven fibrous material for use in air-conditioning filters. The proposed spraying technique is based on the use of an aerodynamic emitter and simultaneous suction. Cerium oxide nanoparticles have successfully been deposited onto the filter materials used in air conditioning systems; the antibacterial activity of the ceria-modified filters exceeded 4.0.
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Affiliation(s)
- Anna V. Abramova
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Daniil A. Kozlov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Varvara O. Veselova
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Taisiya O. Kozlova
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Olga S. Ivanova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia;
| | - Egor S. Mikhalev
- Limited Liability Company “Angstrem”, Bolshaya Polyanka, 51A/9, 119180 Moscow, Russia;
| | - Yuri I. Voytov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Alexandr E. Baranchikov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (D.A.K.); (V.O.V.); (T.O.K.); (Y.I.V.); (V.K.I.)
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
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9
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Remizowa MV, Sokoloff DD. Patterns of Carpel Structure, Development, and Evolution in Monocots. Plants (Basel) 2023; 12:4138. [PMID: 38140465 PMCID: PMC10748379 DOI: 10.3390/plants12244138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023]
Abstract
The phenomenon of heterochrony, or shifts in the relative timing of ontogenetic events, is important for understanding many aspects of plant evolution, including applied issues such as crop yield. In this paper, we review heterochronic shifts in the evolution of an important floral organ, the carpel. The carpels, being ovule-bearing organs, facilitate fertilisation, seed, and fruit formation. It is the carpel that provides the key character of flowering plants, angiospermy. In many angiosperms, a carpel has two zones: proximal ascidiate and distal plicate. When carpels are free (apocarpous gynoecium), the plicate zone has a ventral slit where carpel margins meet and fuse during ontogeny; the ascidiate zone is sac-like from inception and has no ventral slit. When carpels are united in a syncarpous gynoecium, a synascidiate zone has as many locules as carpels, whereas a symplicate zone is unilocular, at least early in ontogeny. In ontogeny, either the (syn)ascidiate or (sym)plicate zone is first to initiate. The two developmental patterns are called early and late peltation, respectively. In extreme cases, either the (sym)plicate or (syn)ascidiate zone is completely lacking. Here, we discuss the diversity of carpel structure and development in a well-defined clade of angiosperms, the monocotyledons. We conclude that the common ancestor of monocots had carpels with both zones and late peltation. This result was found irrespective of the use of the plastid or nuclear phylogeny. Early peltation generally correlates with ovules belonging to the (syn)ascidiate zone, whereas late peltation is found mostly in monocots with a fertile (sym)plicate zone.
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10
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Ustyuzhanina NE, Bilan MI, Anisimova NY, Nikogosova SP, Dmitrenok AS, Tsvetkova EA, Panina EG, Sanamyan NP, Avilov SA, Stonik VA, Kiselevskiy MV, Usov AI, Nifantiev NE. Fucosylated Chondroitin Sulfates with Rare Disaccharide Branches from the Sea Cucumbers Psolus peronii and Holothuria nobilis: Structures and Influence on Hematopoiesis. Pharmaceuticals (Basel) 2023; 16:1673. [PMID: 38139800 PMCID: PMC10748315 DOI: 10.3390/ph16121673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Two fucosylated chondroitin sulfates were isolated from the sea cucumbers Psolus peronii and Holothuria nobilis using a conventional extraction procedure in the presence of papain, followed by anion-exchange chromatography on DEAE-Sephacel. Their composition was characterized in terms of quantitative monosaccharide and sulfate content, and structures were mainly elucidated using 1D- and 2D-NMR spectroscopy. As revealed by the data of the NMR spectra, both polysaccharides along with the usual fucosyl branches contained rare disaccharide branches α-D-GalNAc4S6R-(1→2)-α-L-Fuc3S4R → attached to O-3 of the GlcA of the backbone (R = H or SO3-). The polysaccharides were studied as stimulators of hematopoiesis in vitro using mice bone marrow cells as the model. The studied polysaccharides were shown to be able to directly stimulate the proliferation of various progenitors of myelocytes and megakaryocytes as well as lymphocytes and mesenchymal cells in vitro. Therefore, the new fucosylated chondroitin sulfates can be regarded as prototype structures for the further design of GMP-compatible synthetic analogs for the development of new-generation hematopoiesis stimulators.
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Affiliation(s)
- Nadezhda E. Ustyuzhanina
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Maria I. Bilan
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Natalia Yu. Anisimova
- FSBI N.E.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115458, Russia; (N.Y.A.); (M.V.K.)
| | - Sofya P. Nikogosova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Andrey S. Dmitrenok
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Evgenia A. Tsvetkova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Elena G. Panina
- Kamchatka Branch of Pacific Geographical Institute FEB RAS, Petropavlovsk-Kamchatsky 683000, Russia; (E.G.P.); (N.P.S.)
| | - Nadezhda P. Sanamyan
- Kamchatka Branch of Pacific Geographical Institute FEB RAS, Petropavlovsk-Kamchatsky 683000, Russia; (E.G.P.); (N.P.S.)
| | - Sergey A. Avilov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100 let Vladivostoku 159, Vladivostok 690022, Russia; (S.A.A.); (V.A.S.)
| | - Valentin A. Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100 let Vladivostoku 159, Vladivostok 690022, Russia; (S.A.A.); (V.A.S.)
| | - Mikhail V. Kiselevskiy
- FSBI N.E.N. Blokhin National Medical Research Center of Oncology, Kashirskoye sh. 24, Moscow 115458, Russia; (N.Y.A.); (M.V.K.)
| | - Anatolii I. Usov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
| | - Nikolay E. Nifantiev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia; (M.I.B.); (S.P.N.); (A.S.D.); (E.A.T.); (A.I.U.)
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11
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Illarionova V, Rogova A, Tuchynskaya K, Volok V, Rogova Y, Baryshnikova V, Turchenko Y, Litov A, Kalyanova A, Siniugina A, Ishmukhametov A, Karganova G. Inapparent Tick-Borne Orthoflavivirus Infection in Macaca fascicularis: A Model for Antiviral Drug and Vaccine Research. Vaccines (Basel) 2023; 11:1754. [PMID: 38140159 PMCID: PMC10747564 DOI: 10.3390/vaccines11121754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Tick-borne encephalitis virus (TBEV) and Powassan virus (POWV) are neurotropic tick-borne orthoflaviviruses. They cause mostly asymptomatic infections in hosts, but severe forms with CNS involvement can occur. Studying the early stages of viral infections in humans is challenging, and appropriate animal models are essential for understanding the factors determining the disease severity and for developing emergency prophylaxis and treatment options. In this work, we assessed the model of the early stages of TBEV and POWV mono- and co-infections in Macaca fascicularis. Serological, biochemical, and virological parameters were investigated to describe the infection, including its impact on animal behavior. Viremia, neutralizing antibody dynamics, and viral load in organs were chosen as the main parameters distinguishing early-stage orthoflavivirus infection. Levels of IFNα, monocyte count, and cognitive test scores were proposed as additional informative indicators. An assessment of a tick-borne encephalitis vaccine using this model showed that it provided partial protection against POWV infection in Macaca fascicularis without signs of antibody-dependent enhancement of infection.
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Affiliation(s)
- Victoria Illarionova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
- Department of Biology, Lomonosov Moscow State University, Leninskie Gory 1 bd. 3, Moscow 119991, Russia
| | - Anastasia Rogova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
| | - Ksenia Tuchynskaya
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
| | - Viktor Volok
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
- Research Institute for Systems Biology and Medicine (RISBM), Laboratory of Infectious Immunology, Moscow 117246, Russia
| | - Yulia Rogova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
| | - Victoria Baryshnikova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biochemistry, Moscow 108819, Russia; (V.B.); (Y.T.)
| | - Yuriy Turchenko
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biochemistry, Moscow 108819, Russia; (V.B.); (Y.T.)
| | - Alexander Litov
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia;
| | - Anna Kalyanova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
| | - Alexandra Siniugina
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia;
| | - Aydar Ishmukhametov
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia;
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia;
| | - Galina Karganova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Laboratory of Biology of Arbovirus, Moscow 108819, Russia; (V.I.); (A.R.); (K.T.); (V.V.); (Y.R.); (A.L.); (A.K.)
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia;
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12
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Zayakin I, Romanenko G, Bagryanskaya I, Ugrak B, Fedin M, Tretyakov E. Catalytic System for Cross-Coupling of Heteroaryl Iodides with a Nitronyl Nitroxide Gold Derivative at Room Temperature. Molecules 2023; 28:7661. [PMID: 38005383 PMCID: PMC10675334 DOI: 10.3390/molecules28227661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
A simple and highly effective methodology for the cross-coupling of heteroaryl iodides with NN-AuPPh3 at room temperature is reported. The protocol is based on a novel catalytic system consisting of Pd2(dba)3·CHCl3 and the phosphine ligand MeCgPPh having an adamantane-like framework. The present protocol was found to be well compatible with various heteroaryl iodides, thus opening new horizons in directed synthesis of functionalized nitronyl nitroxides and high-spin molecules.
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Affiliation(s)
- Igor Zayakin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky Ave. 47, Moscow 119991, Russia; (I.Z.); (B.U.)
| | - Galina Romanenko
- International Tomography Center, Institutskaya Str. 3a, Novosibirsk 630090, Russia;
| | - Irina Bagryanskaya
- N. N. Vorozhtsov Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, Novosibirsk 630090, Russia;
| | - Bogdan Ugrak
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky Ave. 47, Moscow 119991, Russia; (I.Z.); (B.U.)
| | - Matvey Fedin
- International Tomography Center, Institutskaya Str. 3a, Novosibirsk 630090, Russia;
| | - Evgeny Tretyakov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky Ave. 47, Moscow 119991, Russia; (I.Z.); (B.U.)
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13
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Pan W, Ao Y, Zhou P, Fetisov L, Fetisov Y, Zhang T, Qi Y. A Flexible Magnetic Field Sensor Based on PZT/CFO Bilayer via van der Waals Oxide Heteroepitaxy. Sensors (Basel) 2023; 23:9147. [PMID: 38005533 PMCID: PMC10674278 DOI: 10.3390/s23229147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/02/2023] [Accepted: 11/11/2023] [Indexed: 11/26/2023]
Abstract
Magnetoelectric (ME) magnetic field sensors utilize ME effects in ferroelectric ferromagnetic layered heterostructures to convert magnetic signals into electrical signals. However, the substrate clamping effect greatly limits the design and fabrication of ME composites with high ME coefficients. To reduce the clamping effect and improve the ME response, a flexible ME sensor based on PbZr0.2Ti0.8O3 (PZT)/CoFe2O4 (CFO) ME bilayered heterostructure was deposited on mica substrates via van der Waals oxide heteroepitaxy. A saturated magnetization of 114.5 emu/cm3 was observed in the bilayers. The flexible sensor exhibited a strong ME coefficient of 6.12 V/cm·Oe. The local ME coupling has been confirmed by the evolution of the ferroelectric domain under applied magnetic fields. The flexible ME sensor possessed a stable response with high sensitivity to both AC and DC weak magnetic fields. A high linearity of 0.9988 and sensitivity of 72.65 mV/Oe of the ME sensor were obtained under flat states. The ME output and limit-of-detection under different bending states showed an inferior trend as the bending radius increased. A flexible proximity sensor has been demonstrated, indicating a promising avenue for wearable device applications and significantly broadening the potential application of the flexible ME magnetic field sensors.
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Affiliation(s)
- Weijuan Pan
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (W.P.); (Y.A.); (P.Z.); (T.Z.)
| | - Yuan Ao
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (W.P.); (Y.A.); (P.Z.); (T.Z.)
| | - Peng Zhou
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (W.P.); (Y.A.); (P.Z.); (T.Z.)
| | - Leonid Fetisov
- Research-Education Center “Magnetoelectric Materials and Devices”, MIREA—Russian Technological University, Moscow 119454, Russia; (L.F.); (Y.F.)
| | - Yuri Fetisov
- Research-Education Center “Magnetoelectric Materials and Devices”, MIREA—Russian Technological University, Moscow 119454, Russia; (L.F.); (Y.F.)
| | - Tianjin Zhang
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (W.P.); (Y.A.); (P.Z.); (T.Z.)
| | - Yajun Qi
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (W.P.); (Y.A.); (P.Z.); (T.Z.)
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14
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Wang Y, Zhou P, Fetisov L, Fetisov Y, Qi Y, Zhang T. Phase Conductance of BiFeO 3 Film. Sensors (Basel) 2023; 23:9123. [PMID: 38005511 PMCID: PMC10674323 DOI: 10.3390/s23229123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
In this work, the local conductance of the tetragonal-like (T-like) and rhombohedral-like (R-like) phases of epitaxial BiFeO3 film is systematically studied via conductive atomic force microscopy. At higher tip voltage, there is a mutual transition between the T-like and R-like phases, which could be attributed to the strain relaxation in the T-like phase induced by electric poling, as well as local polarization switching. The T-like phase exhibits a higher conductance, which is related to the lower interface potential barrier between the tip and film surface. Reversible low- and high-current states in the T-like phase can be tuned by polarization switching. These results will be helpful for designing novel nanoelectronic devices, such as voltage and strain sensors.
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Affiliation(s)
- Yufeng Wang
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (Y.W.); (T.Z.)
| | - Peng Zhou
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (Y.W.); (T.Z.)
| | - Leonid Fetisov
- Research-Education Center “Magnetoelectric Materials and Devices”, MIREA—Russian Technological University, Moscow 119454, Russia
| | - Yuri Fetisov
- Research-Education Center “Magnetoelectric Materials and Devices”, MIREA—Russian Technological University, Moscow 119454, Russia
| | - Yajun Qi
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (Y.W.); (T.Z.)
| | - Tianjin Zhang
- Ministry of Education Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Provincial Key Laboratory of Polymers, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China; (Y.W.); (T.Z.)
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15
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Baryshnikova V, Turchenko Y, Tuchynskaya K, Belyaletdinova I, Butenko A, Dereventsova A, Ignatiev G, Kholodilov I, Larichev V, Lyapeykova E, Rogova A, Shakaryan A, Shishova A, Gmyl A, Karganova G. Recombinant TBEV Protein E of the Siberian Subtype Is a Candidate Antigen in the ELISA Test System for Differential Diagnosis. Diagnostics (Basel) 2023; 13:3277. [PMID: 37892100 PMCID: PMC10606673 DOI: 10.3390/diagnostics13203277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 08/01/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
The tick-borne encephalitis virus (TBEV) is one of the most common members of the Orthoflavivirus genus, which comprises the causative agents of severe diseases in humans and animals. Due to the expanding areas of orthoflavivirus infection, its differential diagnosis is highly demanded. Commercial test kits based on inactivated TBEV may not provide reliable differentiation between flaviviruses because of serological crossover in this genus. Application of recombinant domains (sE and dIII) of the TBEV Sukhar-strain protein E as antigens in an ELISA test system allowed us to identify a wide range of antibodies specific to different TBEV strains. We tested 53 sera from human patients with confirmed TBE diagnosis (the efficacy of our test system based on sE protein was 98%) and 56 sera from patients with other orthoflavivirus infections in which no positive ones were detected using our ELISA test system, thus being indicative of its 100% specificity. We also tested mouse and rabbit sera containing antibodies specific to 17 TBEV strains belonging to different subtypes; this assay exhibited high efficacy and differentiation ability in detecting antibodies against TBEV from other orthoflaviviruses such as Omsk hemorrhagic fever, Powassan, yellow fever, dengue, West Nile, Zika, and Japanese encephalitis viruses.
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Affiliation(s)
- Victoria Baryshnikova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Yuriy Turchenko
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Ksenia Tuchynskaya
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Ilmira Belyaletdinova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Alexander Butenko
- D.I. Ivanovsky Institute of Virology Division of N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of the Russian Federation, Moscow 123098, Russia
| | - Alena Dereventsova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Georgy Ignatiev
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Ivan Kholodilov
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Victor Larichev
- D.I. Ivanovsky Institute of Virology Division of N.F. Gamaleya National Research Center of Epidemiology and Microbiology of the Ministry of Health of the Russian Federation, Moscow 123098, Russia
| | - Ekaterina Lyapeykova
- Infectious Clinical Hospital No. 1 of the Moscow City Health Department, Moscow 125310, Russia;
| | - Anastasiya Rogova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Armen Shakaryan
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
- Department of Infectious Diseases in Children, Faculty of Pediatrics, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Anna Shishova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia
| | - Anatoly Gmyl
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
| | - Galina Karganova
- FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), Moscow 108819, Russia (Y.T.); (I.B.); (A.S.); (A.S.)
- Institute of Translational Medicine and Biotechnology, Sechenov First Moscow State Medical University, Moscow 119991, Russia
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16
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Bardakov SN, Deev RV, Isaev АА, Khromov‐Borisov NN, Kopylov ED, Savchuk МR, Pushkin MS, Presnyakov EV, Magomedova RM, Achmedova PG, Umakhanova ZR, Kaimonov VS, Musatova EV, Blagodatskikh KА, Tveleneva AА, Sofronova YV, Yakovlev IA. Genetic screening of an endemic mutation in the DYSF gene in an isolated, mountainous population in the Republic of Dagestan. Mol Genet Genomic Med 2023; 11:e2236. [PMID: 37553796 PMCID: PMC10568376 DOI: 10.1002/mgg3.2236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/24/2023] [Accepted: 06/29/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Dysferlinopathy has a high prevalence in relatively isolated ethnic groups where consanguineous marriages are characteristic and/or the founder effect exists. However, the frequency of endemic mutations in most isolates has not been investigated. METHODS The prevalence of the pathological DYSF gene variant (NM_003494.4); c.200_201delinsAT, p. Val67Asp (rs121908957) was investigated in an isolated Avar population in the Republic of Dagestan. Genetic screenings were conducted in a remote mountainous region characterized by a high level of consanguinity among its inhabitants. In total, 746 individuals were included in the screenings. RESULTS This pathological DYSF gene variant causes two primary phenotypes of dysferlinopathy: limb-girdle muscular dystrophy (LGMD) type R2 and Miyoshi muscular dystrophy type 1. Results indicated a high prevalence of the allele at 14% (95% confidence interval [CI]: 12-17; 138 out of 1518 alleles), while the allele in the homozygous state was detected in 29 cases-3.8% (CI: 2.6-5.4). The population load for dysferlinopathy was 832.3 ± 153.9 per 100,000 with an average prevalence of limb-girdle muscular dystrophies ranging from 0.38 ± 0.38 to 5.93 ± 1.44 per 100,000. CONCLUSION A significant burden of the allele was due to inbreeding, as evidenced by a deficiency of heterozygotes and the Wright fixation index equal to 0.14 (CI 0.06-0.23).
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Affiliation(s)
| | - Roman V. Deev
- North‐Western State Medical University named after I.I. MechnikovSaint PetersburgRussia
- Human Stem Cells InstituteMoscowRussia
| | - Аrtur А. Isaev
- Human Stem Cells InstituteMoscowRussia
- Genotarget LLCSkolkovo Innovation CentreMoscowRussia
| | | | - Evgeniy D. Kopylov
- North‐Western State Medical University named after I.I. MechnikovSaint PetersburgRussia
| | - Мaria R. Savchuk
- North‐Western State Medical University named after I.I. MechnikovSaint PetersburgRussia
| | - Maxim S. Pushkin
- North‐Western State Medical University named after I.I. MechnikovSaint PetersburgRussia
| | - Evgeniy V. Presnyakov
- North‐Western State Medical University named after I.I. MechnikovSaint PetersburgRussia
| | | | | | | | | | | | | | | | | | - Ivan A. Yakovlev
- Human Stem Cells InstituteMoscowRussia
- Genotarget LLCSkolkovo Innovation CentreMoscowRussia
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17
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Teplonogova MA, Yapryntsev AD, Baranchikov AE, Ivanov VK. Cinnamate-Intercalated Layered Yttrium Hydroxide: UV Light-Responsive Switchable Material. Micromachines (Basel) 2023; 14:1791. [PMID: 37763954 PMCID: PMC10534862 DOI: 10.3390/mi14091791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
In recent years, there has been an increasing interest in stimuli-responsive host-guest materials due to the high potential for their application in switchable devices. Light is the most convenient stimulus for operating these materials; a light-responsive guest affects the host structure and the functional characteristics of the entire material. UV-transparent layered rare earth hydroxides intercalated with UV-switchable anions are promising candidates as stimuli-responsive host-guest materials. The interlayer distance in the layered rare earth hydroxides depends on the size of the intercalated anions, which could be changed in situ, e.g., via anion isomerisation. Nevertheless, for layered rare earth hydroxides, the possibility of such changes has not been reported yet. A good candidate anion that is capable of intercalating into the interlayer space is the cinnamate anion, which undergoes UV-assisted irreversible trans-cis isomerisation. In this work, both trans- and cis-cinnamate anions were intercalated in layered yttrium hydroxide (LYH). Upon UV-irradiation, the interlayer distance of trans-cinnamate-intercalated layered yttrium hydroxide suspended in isopropanol changed from 21.9 to 20.6 Å. For the first time, the results obtained demonstrate the possibility of using layered rare earth hydroxides as stimuli-responsive materials.
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Affiliation(s)
| | | | | | - Vladimir K. Ivanov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 119991 Moscow, Russia
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18
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Chikileva IO, Bruter AV, Persiyantseva NA, Zamkova MA, Vlasenko RY, Dolzhikova YI, Shubina IZ, Donenko FV, Lebedinskaya OV, Sokolova DV, Pokrovsky VS, Fedorova PO, Ustyuzhanina NE, Anisimova NY, Nifantiev NE, Kiselevskiy MV. Anti-Cancer Potential of Transiently Transfected HER2-Specific Human Mixed CAR-T and NK Cell Populations in Experimental Models: Initial Studies on Fucosylated Chondroitin Sulfate Usage for Safer Treatment. Biomedicines 2023; 11:2563. [PMID: 37761005 PMCID: PMC10526813 DOI: 10.3390/biomedicines11092563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Human epidermal growth factor receptor 2 (HER2) is overexpressed in numerous cancer cell types. Therapeutic antibodies and chimeric antigen receptors (CARs) against HER2 were developed to treat human tumors. The major limitation of anti-HER2 CAR-T lymphocyte therapy is attributable to the low HER2 expression in a wide range of normal tissues. Thus, side effects are caused by CAR lymphocyte "on-target off-tumor" reactions. We aimed to develop safer HER2-targeting CAR-based therapy. CAR constructs against HER2 tumor-associated antigen (TAA) for transient expression were delivered into target T and natural killer (NK) cells by an effective and safe non-viral transfection method via nucleofection, excluding the risk of mutations associated with viral transduction. Different in vitro end-point and real-time assays of the CAR lymphocyte antitumor cytotoxicity and in vivo human HER2-positive tumor xenograft mice model proved potent cytotoxic activity of the generated CAR-T-NK cells. Our data suggest transient expression of anti-HER2 CARs in plasmid vectors by human lymphocytes as a safer treatment for HER2-positive human cancers. We also conducted preliminary investigations to elucidate if fucosylated chondroitin sulfate may be used as a possible agent to decrease excessive cytokine production without negative impact on the CAR lymphocyte antitumor effect.
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Affiliation(s)
- Irina O. Chikileva
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Alexandra V. Bruter
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia;
| | - Nadezhda A. Persiyantseva
- Research Institute of Carcinogenesis, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (N.A.P.); (M.A.Z.)
| | - Maria A. Zamkova
- Research Institute of Carcinogenesis, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (N.A.P.); (M.A.Z.)
| | - Raimonda Ya. Vlasenko
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Yuliya I. Dolzhikova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Irina Zh. Shubina
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Fedor V. Donenko
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Olga V. Lebedinskaya
- Department of Histology, Embryology and Cytology, EA Vagner Perm State Medical University, 614000 Perm, Russia;
| | - Darina V. Sokolova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Patrice Lumumba Peoples’ Friendship University, 117198 Moscow, Russia
| | - Vadim S. Pokrovsky
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Patrice Lumumba Peoples’ Friendship University, 117198 Moscow, Russia
| | - Polina O. Fedorova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
- Microbiology, Virology and Immunology Department, Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119991 Moscow, Russia
- II Mechnikov Research Institute of Vaccines and Serums, 105064 Moscow, Russia
| | | | - Natalia Yu. Anisimova
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
| | - Nikolay E. Nifantiev
- ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Mikhail V. Kiselevskiy
- Research Institute of Experimental Therapy and Diagnostics of Tumor, NN Blokhin National Medical Center of Oncology, 115478 Moscow, Russia; (R.Y.V.); (Y.I.D.); (I.Z.S.); (F.V.D.); (D.V.S.); (V.S.P.); (P.O.F.); (N.Y.A.); (M.V.K.)
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19
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Milevskii NA, Zinov’eva IV, Kozhevnikova AV, Zakhodyaeva YA, Voshkin AA. Sm/Co Magnetic Materials: A Recycling Strategy Using Modifiable Hydrophobic Deep Eutectic Solvents Based on Trioctylphosphine Oxide. Int J Mol Sci 2023; 24:14032. [PMID: 37762334 PMCID: PMC10531512 DOI: 10.3390/ijms241814032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/25/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Hydrophobic deep eutectic solvents (HDES) are widely used as extractants. Usually, when preparing HDES, only the extraction ability of one component is taken into account, with the second serving as an "inert" component, whose effect on the extraction process is not taken into account. The present study demonstrates the possibility of controlling the selectivity of a hydrophobic deep eutectic solvent based on trioctylphosphine oxide (TOPO) by varying the substance that acts as a hydrogen bond donor, but which does not have an extractive ability. In the course of the work, the influence of the "inert" component on the physicochemical and extraction properties of HDES was confirmed by experimental, spectroscopic, and also calculation methods. A number of phenols with different structural features were chosen as the HDES' hydrogen bond donors to modify: phenol (Ph), para-tert-butylphenol (PTBP) and thymol (Th). Using the example of separation of the Sm/Co pair, the influence of the structure of a hydrogen bond donor on the extraction ability of a hydrophobic deep eutectic solvent was established, where the degree of extraction of Sm (III) increased in the series Th:TOPO < PTBP:TOPO < Ph:TOPO. HDES based on TOPO and phenols can potentially be used to separate Sm and Co from the process leach solutions generated during the hydrometallurgical processing of waste SmCo magnets.
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Affiliation(s)
| | | | | | - Yulia A. Zakhodyaeva
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, Russia; (N.A.M.); (I.V.Z.); (A.V.K.); (A.A.V.)
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20
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Belova OA, Polienko AE, Averianova AD, Karganova GG. Development Features of Ixodes ricinus × I. persulcatus Hybrids under Laboratory Conditions. Microorganisms 2023; 11:2252. [PMID: 37764095 PMCID: PMC10536943 DOI: 10.3390/microorganisms11092252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Widely distributed Ixodes ricinus and Ixodes persulcatus ticks transmit many pathogens of both medical and veterinary significance. The ranges of these tick species overlap and form large sympatric areas in the East European Plain and Baltic countries. It has previously been shown that crossing I. ricinus and I. persulcatus is possible, resulting in the appearance of sterile hybrids. In the present study, we analyzed the features of this hybrid's life cycle under laboratory conditions. For this purpose, virgin females of I. ricinus and I. persulcatus ticks were obtained in the laboratory, and hybrid generations of ticks were bred from the reciprocal crossings of these two tick species. According to our data, mating the females of I. ricinus and I. persulcatus with the males of another species leads to a decrease in the engorgement success of the females, a decrease in the number of hatched larvae, and the appearance of a hybrid generation in which both females and males are sterile. Under laboratory conditions at a constant room temperature and under natural daylight, the morphogenetic diapause of the engorged I. persulcatus larvae began in September. For I. persulcatus nymphs, it occurred earlier than for I. ricinus, in October and November, respectively. The hybrids generally repeated the features of the life cycle of the mother species.
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Affiliation(s)
- Oxana A. Belova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia (G.G.K.)
| | - Alexandra E. Polienko
- Laboratory of Biology of Arboviruses, FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia (G.G.K.)
| | - Anastasia D. Averianova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia (G.G.K.)
| | - Galina G. Karganova
- Laboratory of Biology of Arboviruses, FSASI “Chumakov FSC R&D IBP RAS” (Institute of Poliomyelitis), 108819 Moscow, Russia (G.G.K.)
- Institute for Translational Medicine and Biotechnology, Sechenov University, 119991 Moscow, Russia
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21
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Azarkin M, Kirakosyan M, Ryabov V. Study of Nuclear Reactions in Therapy of Tumors with Proton Beams. Int J Mol Sci 2023; 24:13400. [PMID: 37686211 PMCID: PMC10488192 DOI: 10.3390/ijms241713400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
This paper presents an assessment of nuclear reaction yields of protons, α-particles, and neutrons in human tissue-equivalentmaterial in proton therapy using a simulation with Geant 4. In this study, we also check an enhancement of nuclear reactions due to the presence of Bi, Au, 11B, and 10B radiosensitizer nanoparticles. We demonstrate that a proton beam induces a noticeable amount of nuclear reactions in the tissue. Nevertheless, the enhancement of nuclear reaction products due to radiosensitizer nanoparticles is found to be negligible.
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Affiliation(s)
- Maxim Azarkin
- P. N. Lebedev Physical Institute, 119991 Moscow, Russia; (M.K.); (V.R.)
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22
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Dontsov AE, Yakovleva MA, Vasin AA, Gulin AA, Aybush AV, Nadtochenko VA, Ostrovsky MA. Understanding the Mechanism of Light-Induced Age-Related Decrease in Melanin Concentration in Retinal Pigment Epithelium Cells. Int J Mol Sci 2023; 24:13099. [PMID: 37685907 PMCID: PMC10487480 DOI: 10.3390/ijms241713099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/13/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
It is known that during the process of aging, there is a significant decrease in the number of melanosomes in the retinal pigment epithelium (RPE) cells in the human eye. Melanosomes act as screening pigments in RPE cells and are fundamentally important for protection against the free radicals generated by light. A loss or change in the quality of melanin in melanosomes can lead to the development of senile pathologies and aggravation in the development of various retinal diseases. We have previously shown that the interaction between melanin melanosomes and superoxide radicals results in oxidative degradation with the formation of water-soluble fluorescent products. In the present study, we show, using fluorescence analysis, HPLC, and mass spectrometry, that visible light irradiation on melanolipofuscin granules isolated from RPE cells in the human eye results in the formation of water-soluble fluorescent products from oxidative degradation of melanin, which was in contrast to lipofuscin granules and melanosomes irradiation. The formation of these products occurs as a result of the oxidative degradation of melanin by superoxide radicals, which are generated by the lipofuscin part of the melanolipofuscin granule. We identified these products both in the composition of melanolipofuscin granules irradiated with visible light and in the composition of melanosomes that were not irradiated but were, instead, oxidized by superoxide radicals. In the melanolipofuscin granules irradiated by visible light, ions that could be associated with melanin oxidative degradation products were identified by applying the principal component analysis of the time-of-flight secondary ion mass spectrometry (ToF-SIMS) data. Degradation of the intact melanosomes by visible light is also possible; however, this requires significantly higher irradiation intensities than for melanolipofuscin granules. It is concluded that the decrease in the concentration of melanin in RPE cells in the human eye with age is due to its oxidative degradation by reactive oxygen species generated by lipofuscin, as part of the melanolipofuscin granules, under the action of light.
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Affiliation(s)
- Alexander E. Dontsov
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (M.A.Y.); (M.A.O.)
| | - Marina A. Yakovleva
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (M.A.Y.); (M.A.O.)
| | - Alexander A. Vasin
- Federal Research Center of Chemical Physics, Russian Academy of Sciences, N.N. Semenov RAS, 119991 Moscow, Russia; (A.A.V.); (A.A.G.); (A.V.A.); (V.A.N.)
| | - Alexander A. Gulin
- Federal Research Center of Chemical Physics, Russian Academy of Sciences, N.N. Semenov RAS, 119991 Moscow, Russia; (A.A.V.); (A.A.G.); (A.V.A.); (V.A.N.)
| | - Arseny V. Aybush
- Federal Research Center of Chemical Physics, Russian Academy of Sciences, N.N. Semenov RAS, 119991 Moscow, Russia; (A.A.V.); (A.A.G.); (A.V.A.); (V.A.N.)
| | - Viktor A. Nadtochenko
- Federal Research Center of Chemical Physics, Russian Academy of Sciences, N.N. Semenov RAS, 119991 Moscow, Russia; (A.A.V.); (A.A.G.); (A.V.A.); (V.A.N.)
| | - Mikhail A. Ostrovsky
- Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, 119334 Moscow, Russia; (M.A.Y.); (M.A.O.)
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23
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Golovakhin V, Kim EY, Novgorodtseva ON, Maksimovskiy EA, Ukhina AV, Ishchenko AV, Bannov AG. Treatment of Multi-Walled Carbon Nanotubes with Dichromic Acid: Oxidation and Appearance of Intercalation. Membranes (Basel) 2023; 13:729. [PMID: 37623790 PMCID: PMC10456443 DOI: 10.3390/membranes13080729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/26/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023]
Abstract
This work is dedicated to the study of the treatment of multi-walled carbon nanotubes (MWCNTs) with dichromic acid. The dichromic acid was formed by dissolving different concentrations of CrO3 in water. The effect of the concentration of dichromic acid on the change in texture characteristics, elemental composition, defectiveness, graphitization degree, and surface chemistry of MWCNTs was investigated using various analytical techniques, such as transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, and X-ray photoelectron spectroscopy (XPS). Testing of MWCNTs as electrodes for supercapacitors in 3.5 M H2SO4 solution was carried out using cyclic voltammetry. A decrease in the average diameter of CNTs after treatment was found. The EDX and XPS showed that the oxygen content on the surface of MWCNTs increased after treatment with dichromic acid. The formation of Cr2O3 after treatment with dichromic acid was detected by XPS. High angle annular dark field scanning transmission electron microscopy was used to confirm the intercalation of the chromium-containing compound between graphene layers of MWCNTs after treatment with dichromic acid. It was found that two different types of MWCNTs showed diverse behavior after treatment. The highest specific capacitance of the MWCNTs after treatment was 141 F g-1 (at 2 mV s-1) compared to 0.3 F g-1 for the untreated sample.
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Affiliation(s)
- Valeriy Golovakhin
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (V.G.); (E.Y.K.); (O.N.N.)
| | - Ekaterina Yu. Kim
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (V.G.); (E.Y.K.); (O.N.N.)
| | - Oksana N. Novgorodtseva
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (V.G.); (E.Y.K.); (O.N.N.)
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of Russian Academy of Sciences, 630092 Novosibirsk, Russia;
| | - Evgene A. Maksimovskiy
- Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Arina V. Ukhina
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of Russian Academy of Sciences, 630092 Novosibirsk, Russia;
| | - Arcady V. Ishchenko
- Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Alexander G. Bannov
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (V.G.); (E.Y.K.); (O.N.N.)
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Grigoriev M, Zolotov D, Ingacheva A, Buzmakov A, Dyachkova I, Asadchikov V, Chukalina M. Crystal Analyzer Based Multispectral Microtomography Using CCD-Sensor. Sensors (Basel) 2023; 23:6389. [PMID: 37514683 PMCID: PMC10386214 DOI: 10.3390/s23146389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023]
Abstract
To solve the problems of spectral tomography, an X-ray optical scheme was proposed, using a crystal analyzer in Laue geometry between the sample and the detector, which allowed for the selection of predetermined pairs of wavelengths from the incident polychromatic radiation to obtain projection images. On a laboratory X-ray microtomography setup, an experiment was carried out for the first time where a mixture of micro-granules of sodium chloride NaCl, silver behenate AgC22H43O2, and lithium niobate LiNbO3 was used as a test sample to identify their spatial arrangement. The elements were chosen based on the presence of absorption edges in two of the elements in the energy range of the polychromatic spectrum of the probing radiation. The method of projection distortion correction was used to preprocess the obtained projections. To interpret the obtained reconstruction results, the segmentation method based on the analysis of joint histograms was used. This allowed us to identify each of the three substances. To compare the results obtained, additional "reference" tomographic measurements were performed: one in polychromatic and two in monochromatic (MoKα-, MoKβ-lines) modes. It took three times less time for the tomographic experiment with the crystal analyzer, while the reconstruction accuracy was comparable to that of the "reference" tomography.
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Affiliation(s)
- Maxim Grigoriev
- Institute of Microelectronics Technology and High Purity Materials RAS, Osipyan Str., 6, 142432 Chernogolovka, Russia
| | - Denis Zolotov
- FSRC "Crystallography and Photonics" RAS, Leninskiy Prospekt 59, 119333 Moscow, Russia
| | - Anastasia Ingacheva
- Smart Engines Service LLC, 60-Letiya Oktyabrya Avenue, 9, 117312 Moscow, Russia
- Institute for Information Transmission Problems (Kharkevich Institute) RAS, Bolshoy Karetny Lane, 19, 127051 Moscow, Russia
| | - Alexey Buzmakov
- FSRC "Crystallography and Photonics" RAS, Leninskiy Prospekt 59, 119333 Moscow, Russia
| | - Irina Dyachkova
- FSRC "Crystallography and Photonics" RAS, Leninskiy Prospekt 59, 119333 Moscow, Russia
| | - Victor Asadchikov
- FSRC "Crystallography and Photonics" RAS, Leninskiy Prospekt 59, 119333 Moscow, Russia
| | - Marina Chukalina
- Smart Engines Service LLC, 60-Letiya Oktyabrya Avenue, 9, 117312 Moscow, Russia
- Institute for Information Transmission Problems (Kharkevich Institute) RAS, Bolshoy Karetny Lane, 19, 127051 Moscow, Russia
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25
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Talantsev EF. Intrinsic Coherence Length Anisotropy in Nickelates and Some Iron-Based Superconductors. Materials (Basel) 2023; 16:4367. [PMID: 37374551 DOI: 10.3390/ma16124367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/11/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Nickelate superconductors, R1-xAxNiO2 (where R is a rare earth metal and A = Sr, Ca), experimentally discovered in 2019, exhibit many unexplained mysteries, such as the existence of a superconducting state with Tc (up to 18 K) in thin films and yet absent in bulk materials. Another unexplained mystery of nickelates is their temperature-dependent upper critical field, Bc2(T), which can be nicely fitted to two-dimensional (2D) models; however, the deduced film thickness, dsc,GL, exceeds the physical film thickness, dsc, by a manifold. To address the latter, it should be noted that 2D models assume that dsc is less than the in-plane and out-of-plane ground-state coherence lengths, dsc<ξab(0) and dsc<ξc(0), respectively, and, in addition, that the inequality ξc(0)<ξab(0) satisfies. Analysis of the reported experimental Bc2(T) data showed that at least one of these conditions does not satisfy for R1-xAxNiO2 films. This implies that nickelate films are not 2D superconductors, despite the superconducting state being observed only in thin films. Based on this, here we propose an analytical three-dimensional (3D) model for a global data fit of in-plane and out-of-plane Bc2(T) in nickelates. The model is based on a heuristic expression for temperature-dependent coherence length anisotropy: γξ(T)=γξ(0)1-1a×TTc, where a>1 is a unitless free-fitting parameter. The proposed expression for γξ(T), perhaps, has a much broader application because it has been successfully applied to bulk pnictide and chalcogenide superconductors.
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Affiliation(s)
- Evgeny F Talantsev
- M. N. Miheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, 18, S. Kovalevskoy St., 620108 Ekaterinburg, Russia
- NANOTECH Centre, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
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Shinkareva G, Erina O, Tereshina M, Sokolov D, Lychagin M, Kasimov N. Anthropogenic factors affecting the Moskva River water quality: levels and sources of nutrients and potentially toxic elements in Moscow metropolitan area. Environ Geochem Health 2023; 45:3113-3141. [PMID: 36163533 DOI: 10.1007/s10653-022-01393-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 09/10/2022] [Indexed: 06/01/2023]
Abstract
This study aims to identify the main patterns of distribution and sources of pollutants in the Moskva River and their influence on river water quality under different levels of anthropogenic stress caused by the largest megacity in Europe - Moscow. For this study, we determined concentrations of 18 trace elements, nutrient elements and major ions, chemical and biochemical oxygen demand, and physical parameters of water at 45 stations on the Moskva River and 20 stations on its tributaries during spring flood and low water of 2019 and 2020 to identify the extent and mechanisms of urban impact on its water chemistry. Chemical elements concentrations have been determined using ICP-MS and ICP-AES methods. Mn, Al, Cu, Sr, Zn, B, Mo, and inorganic nitrogen were outlined as key pollutants according to various drinking water and environmental guidelines. Using correlation and factor analysis, five groups of elements were identified, corresponding to different drivers controlling their unequal distribution within the watershed: mineral sources (Sr, Li, B, Mo, Ca), sewage and road runoff (TN, TP, Sb, Ni, N-NO2, BOD5, COD, V, Zn), impact of acidic wetlands (Al, COD, Zr, Bi), groundwater and landfills leachate (V, As, Pb, U, Sb), and industrial activities (Zn, Cu). Water quality in the Moskva Basin on the whole is good according to the CCME Water Quality Index. Local deterioration of water quality to marginal and even fair (depending on the reference water quality guideline) is confined to the Moskva River part downstream from the Kuryanovo aeration station to the Moskva mouth and to the mouths of several heavily contaminated tributaries.
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Affiliation(s)
- Galina Shinkareva
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991.
| | - Oxana Erina
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991
| | - Maria Tereshina
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991
| | - Dmitriy Sokolov
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991
| | - Mikhail Lychagin
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991
| | - Nikolay Kasimov
- Faculty of Geography, Lomonosov Moscow State University, Leninskie gory 1, Moscow, Russian Federation, 119991
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Gauzshtein V, Fix A, Vasilishin B, Darwish E, Kuzin M, Levchuk M, Loginov A, Nikolenko D, Rachek I, Shestakov Y, Toporkov D, Yurchenko A, Zevakov S, Mahmoud Z. The role of final-state interaction in tensor polarization effects of the reaction [Formula: see text]. Sci Rep 2023; 13:7532. [PMID: 37161001 PMCID: PMC10170108 DOI: 10.1038/s41598-023-34555-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/03/2023] [Indexed: 05/11/2023] Open
Abstract
Tensor analyzing-power components [Formula: see text], [Formula: see text], and [Formula: see text] for the reaction [Formula: see text] have been studied for the first time in the photon energy range from 280 to 500 MeV. The data are extracted from the experimental statistics accumulated at the VEPP-3 storage ring in 2002-2003. The measured asymmetries are compared with the results of statistical simulations performed with the [Formula: see text] amplitude from a spectator model, taking into account corrections for the final-state interaction. The comparison demonstrates quite good agreement between the experimental results and the theory.
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Affiliation(s)
| | - Alexander Fix
- National Research Tomsk Polytechnical University, Tomsk, 634050 Russia
| | - Bogdan Vasilishin
- National Research Tomsk Polytechnical University, Tomsk, 634050 Russia
| | - Eed Darwish
- Physics Department, Faculty of Science, Taibah University, 41411 Medina, Saudi Arabia
- Physics Department, Faculty of Science, Sohag University, Sohag, 82524 Egypt
| | - Matvey Kuzin
- National Research Tomsk Polytechnical University, Tomsk, 634050 Russia
| | - Michael Levchuk
- Stepanov Institute of Physics, National Academy of Sciences of Belarus, 220072 Minsk, Belarus
- Institute of Applied Physics, National Academy of Sciences of Belarus, 220072 Minsk, Belarus
| | - Alexey Loginov
- Tomsk State University of Control Systems and Radioelectronics, Tomsk, 634050 Russia
| | | | - Igor Rachek
- Budker Institute of Nuclear Physics, Novosibirsk, 630090 Russia
| | - Yuriy Shestakov
- Budker Institute of Nuclear Physics, Novosibirsk, 630090 Russia
- Novosibirsk State University, Novosibirsk, 630090 Russia
| | - Dmitry Toporkov
- Budker Institute of Nuclear Physics, Novosibirsk, 630090 Russia
- Novosibirsk State University, Novosibirsk, 630090 Russia
| | | | - Sergey Zevakov
- Budker Institute of Nuclear Physics, Novosibirsk, 630090 Russia
| | - Zakaria Mahmoud
- Physics Department, Faculty of Science, King Khalid University, 62529 Abha, Saudi Arabia
- Physics Department, Faculty of Science, New Valley University, El-Kharga, 72511 Egypt
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Lazarev VF, Dutysheva EA, Kanunikov IE, Guzhova IV, Margulis BA. Protein Interactome of Amyloid-β as a Therapeutic Target. Pharmaceuticals (Basel) 2023; 16:312. [PMID: 37259455 PMCID: PMC9965366 DOI: 10.3390/ph16020312] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/27/2023] [Accepted: 02/08/2023] [Indexed: 04/12/2024] Open
Abstract
The amyloid concept of Alzheimer's disease (AD) assumes the β-amyloid peptide (Aβ) as the main pathogenic factor, which injures neural and other brain cells, causing their malfunction and death. Although Aβ has been documented to exert its cytotoxic effect in a solitary manner, there is much evidence to claim that its toxicity can be modulated by other proteins. The list of such Aβ co-factors or interactors includes tau, APOE, transthyretin, and others. These molecules interact with the peptide and affect the ability of Aβ to form oligomers or aggregates, modulating its toxicity. Thus, the list of potential substances able to reduce the harmful effects of the peptide should include ones that can prevent the pathogenic interactions by specifically binding Aβ and/or its partners. In the present review, we discuss the data on Aβ-based complexes in AD pathogenesis and on the compounds directly targeting Aβ or the destructors of its complexes with other polypeptides.
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Affiliation(s)
- Vladimir F. Lazarev
- Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Elizaveta A. Dutysheva
- Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Igor E. Kanunikov
- Biological Faculty, St. Petersburg State University, 199034 Saint Petersburg, Russia
| | - Irina V. Guzhova
- Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Boris A. Margulis
- Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
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Mandal AK, Paudel S, Pandey A, Yadav P, Pathak P, Grishina M, Jaremko M, Emwas AH, Khalilullah H, Verma A. Guava Leaf Essential Oil as a Potent Antioxidant and Anticancer Agent: Validated through Experimental and Computational Study. Antioxidants (Basel) 2022; 11:2204. [PMID: 36358576 PMCID: PMC9687059 DOI: 10.3390/antiox11112204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 08/13/2023] Open
Abstract
UNLABELLED Several drugs now employed in cancer therapy were discovered as a result of anticancer drug research based on natural products. Here, we reported the in vitro antioxidant and anticancer activity followed by in silico anticancer and estrogen-like activity of Psidium guajava L. essential oil against ER-α receptors which lead to potential inhibitory action against breast cancer pathways. METHODS The bioactive compounds in guava essential oil were screened using gas chromatography-mass spectrometry (GC-MS). Similarly, the antioxidant properties of the extracted oil were evaluated using 2,2-Diphenyl-1-picrylhydrazyl scavenging assay. Furthermore, the in vitro anticancer activity of guava oil was observed through the MTT assay and an in silico molecular docking experiment was also carried out to ensure that they fit into the estrogen receptors (ERs) and possess anticancer potential. RESULTS The GC-MS profile of the essential oil revealed the presence of 17 chemicals, with limonene (51.3%), eucalyptol (21.3%), caryophyllene oxide (6.2%), caryophyllene (5.6%), and nerolidol (4.5%) occupying more than one-third of the chromatographic spectrum zone. Guava leaves' essential oil (EO) inhibited DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals and exhibited concentration dependent free radical scavenging activity, acting as a potent antioxidant with an IC50 value of 29.3 ± 0.67 µg/mL. The outcome of the MTT assay showed that the extracted guava oil had nearly the same efficacy against breast and liver cancer cells at a low concentration (1 µg/mL), giving 98.3 ± 0.3% and 98.5 ± 0.4% cell viability against HepG2 at 1 µg/mL, respectively. When the concentration of essential oil was increased, it showed a small reduction in the percentage of viable cells. While conducting an in silico study of all the screened compounds, the potential for hydroxycaryophyllene, caryophyllene, caryophyllene oxide, humulene, terpineol, and calamenene to inhibit tumor growth was bolstered due to a resemblance to 4-hydroxytamoxifen, thereby implying that these compounds may act as selective estrogen receptor modulators (SERMs). The ADME analysis of the compounds indicated above revealed that they exhibit excellent drug likeness properties and follow the Lipinski rule of five. CONCLUSIONS Consequently, they have a substantial anticancer therapeutic potential and can be used for novel drug discovery in the effort to minimize the global burden of breast cancer.
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Affiliation(s)
- Ashok Kumar Mandal
- Natural Product Research Laboratory, Thapathali, Kathmandu 44600, Nepal
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India
| | - Samrat Paudel
- Department of Biotechnology, Kathmandu University, Dhulikhel 45200, Nepal
| | - Anisha Pandey
- Natural Product Research Laboratory, Thapathali, Kathmandu 44600, Nepal
- Department of Biotechnology, National College, Tribhuvan University, Naya Bazar, Kathmandu 44600, Nepal
| | - Parasmani Yadav
- Natural Product Research Laboratory, Thapathali, Kathmandu 44600, Nepal
| | - Prateek Pathak
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, Chelyabinsk 454008, Russia
| | - Maria Grishina
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, Chelyabinsk 454008, Russia
| | - Mariusz Jaremko
- Smart-Health Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Habibullah Khalilullah
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unaizah 51911, Saudi Arabia
| | - Amita Verma
- Bioorganic and Medicinal Chemistry Research Laboratory, Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj 211007, India
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Usov AI, Bilan MI, Ustyuzhanina NE, Nifantiev NE. Fucoidans of Brown Algae: Comparison of Sulfated Polysaccharides from Fucus vesiculosus and Ascophyllum nodosum. Mar Drugs 2022; 20:638. [PMID: 36286461 PMCID: PMC9604890 DOI: 10.3390/md20100638] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
Preparations of sulfated polysaccharides obtained from brown algae are known as fucoidans. These biopolymers have attracted considerable attention due to many biological activities which may find practical applications. Two Atlantic representatives of Phaeophyceae, namely, Fucus vesiculosus and Ascophyllum nodosum, belonging to the same order Fucales, are popular sources of commercial fucoidans, which often regarded as very similar in chemical composition and biological actions. Nevertheless, these two fucoidan preparations are polysaccharide mixtures which differ considerably in amount and chemical nature of components, and hence, this circumstance should be taken into account in the investigation of their biological properties and structure-activity relationships. In spite of these differences, fractions with carefully characterized structures prepared from both fucoidans may have valuable applications in drug development.
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Affiliation(s)
- Anatolii I. Usov
- The Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia
| | | | | | - Nikolay E. Nifantiev
- The Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia
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Serebrennikova KV, Byzova NA, Zherdev AV, Khlebtsov NG, Khlebtsov BN, Biketov SF, Dzantiev BB. Lateral Flow Immunoassay of SARS-CoV-2 Antigen with SERS-Based Registration: Development and Comparison with Traditional Immunoassays. Biosensors (Basel) 2021; 11:510. [PMID: 34940267 PMCID: PMC8699720 DOI: 10.3390/bios11120510] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/28/2021] [Accepted: 12/07/2021] [Indexed: 05/04/2023]
Abstract
The current COVID-19 pandemic has increased the demand for pathogen detection methods that combine low detection limits with rapid results. Despite the significant progress in methods and devices for nucleic acid amplification, immunochemical methods are still preferred for mass testing without specialized laboratories and highly qualified personnel. The most widely used immunoassays are microplate enzyme-linked immunosorbent assay (ELISA) with photometric detection and lateral flow immunoassay (LFIA) with visual results assessment. However, the disadvantage of ELISA is its considerable duration, and that of LFIA is its low sensitivity. In this study, the modified LFIA of a specific antigen of the causative agent of COVID-19, spike receptor-binding domain, was developed and characterized. This modified LFIA includes the use of gold nanoparticles with immobilized antibodies and 4-mercaptobenzoic acid as surface-enhanced Raman scattering (SERS) nanotag and registration of the nanotag binding by SERS spectrometry. To enhance the sensitivity of LFIA-SERS analysis, we determined the optimal compositions of SERS nanotags and membranes used in LFIA. For benchmark comparison, ELISA and conventional colorimetric LFIA were used with the same immune reagents. The proposed method combines a low detection limit of 0.1 ng/mL (at 0.4 ng/mL for ELISA and 1 ng/mL for qualitative LFIA) with a short assay time equal to 20 min (at 3.5 h for ELISA and 15 min for LFIA). The results obtained demonstrate the promise of using the SERS effects in membrane immuno-analytical systems.
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Affiliation(s)
- Kseniya V. Serebrennikova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.V.S.); (N.A.B.); (A.V.Z.)
| | - Nadezhda A. Byzova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.V.S.); (N.A.B.); (A.V.Z.)
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.V.S.); (N.A.B.); (A.V.Z.)
| | - Nikolai G. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 410049 Saratov, Russia; (N.G.K.); (B.N.K.)
- Faculty of Nano- and Biomedical Technologies, Saratov State University, 410012 Saratov, Russia
| | - Boris N. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 410049 Saratov, Russia; (N.G.K.); (B.N.K.)
| | - Sergey F. Biketov
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow Region, Russia;
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.V.S.); (N.A.B.); (A.V.Z.)
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Peng X, Niemi AJ. Local topology and bifurcation hot-spots in proteins with SARS-CoV-2 spike protein as an example. PLoS One 2021; 16:e0257886. [PMID: 34591922 PMCID: PMC8483365 DOI: 10.1371/journal.pone.0257886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 09/13/2021] [Indexed: 11/19/2022] Open
Abstract
Novel topological methods are introduced to protein research. The aim is to identify hot-spot sites where a bifurcation can alter the local topology of the protein backbone. Since the shape of a protein is intimately related to its biological function, a substitution that causes a bifurcation should have an enhanced capacity to change the protein's function. The methodology applies to any protein but it is developed with the SARS-CoV-2 spike protein as a timely example. First, topological criteria are introduced to identify and classify potential bifurcation hot-spot sites along the protein backbone. Then, the expected outcome of asubstitution, if it occurs, is estimated for a general class of hot-spots, using a comparative analysis of the surrounding backbone segments. The analysis combines the statistics of structurally commensurate amino acid fragments in the Protein Data Bank with general stereochemical considerations. It is observed that the notorious D614G substitution of the spike protein is a good example of a bifurcation hot-spot. A number of topologically similar examples are then analyzed in detail, some of them are even better candidates for a bifurcation hot-spot than D614G. The local topology of the more recently observed N501Y substitution is also inspected, and it is found that this site is proximal to a different kind of local topology changing bifurcation.
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Affiliation(s)
- Xubiao Peng
- Center for Quantum Technology Research and Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), Beijing Institute of Technology, Beijing, China
- School of Physics, Beijing Institute of Technology, Beijing, China
| | - Antti J. Niemi
- Nordita, Stockholm University, Stockholm, Sweden
- School of Physics, Beijing Institute of Technology, Beijing, China
- Pacific Quantum Center and School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- * E-mail:
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Withanage S, Savin A, Nikolaeva V, Kiseleva A, Dukhinova M, Krivoshapkin P, Krivoshapkina E. Native Spider Silk-Based Antimicrobial Hydrogels for Biomedical Applications. Polymers (Basel) 2021; 13:1796. [PMID: 34072375 PMCID: PMC8198725 DOI: 10.3390/polym13111796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 01/25/2023] Open
Abstract
Novel antimicrobial natural polymeric hybrid hydrogels based on hyaluronic acid (HA) and spider silk (Ss) were prepared using the chemical crosslinking method. The effects of the component ratios on the hydrogel characteristics were observed parallel to the primary physicochemical characterization of the hydrogels with scanning electron microscopic imaging, Fourier-transform infrared spectroscopy, and contact angle measurements, which confirmed the successful crosslinking, regular porous structure, exact composition, and hydrophilic properties of hyaluronic acid/spider silk-based hydrogels. Further characterizations of the hydrogels were performed with the swelling degree, enzymatic degradability, viscosity, conductivity, and shrinking ability tests. The hyaluronic acid/spider silk-based hydrogels do not show drastic cytotoxicity over human postnatal fibroblasts (HPF). Hydrogels show extraordinary antimicrobial ability on both gram-negative and gram-positive bacteria. These hydrogels could be an excellent alternative that aids in overcoming antimicrobial drug resistance, which is considered to be one of the major global problems in the biomedical industry. Hyaluronic acid/spider silk-based hydrogels are a promising material for collaborated antimicrobial and anti-inflammatory drug delivery systems for external use. The rheological properties of the hydrogels show shear-thinning properties, which suggest that the hydrogels could be applied in 3D printing, such as in the 3D printing of antimicrobial surgical meshes.
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Affiliation(s)
| | | | | | | | | | | | - Elena Krivoshapkina
- SCAMT Institute, ITMO University, Lomonosova str. 9, 191002 Saint Petersburg, Russia; (S.W.); (A.S.); (V.N.); (A.K.); (M.D.); (P.K.)
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Bannov AG, Popov MV, Brester AE, Kurmashov PB. Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials. Micromachines (Basel) 2021; 12:186. [PMID: 33673142 PMCID: PMC7918724 DOI: 10.3390/mi12020186] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 02/07/2023]
Abstract
This review paper is devoted to an extended analysis of ammonia gas sensors based on carbon nanomaterials. It provides a detailed comparison of various types of active materials used for the detection of ammonia, e.g., carbon nanotubes, carbon nanofibers, graphene, graphene oxide, and related materials. Different parameters that can affect the performance of chemiresistive gas sensors are discussed. The paper also gives a comparison of the sensing characteristics (response, response time, recovery time, operating temperature) of gas sensors based on carbon nanomaterials. The results of our tests on ammonia gas sensors using various techniques are analyzed. The problems related to the recovery of sensors using various approaches are also considered. Finally, the impact of relative humidity on the sensing behavior of carbon nanomaterials of various different natures was estimated.
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Affiliation(s)
- Alexander G. Bannov
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (M.V.P.); (A.E.B.); (P.B.K.)
| | - Maxim V. Popov
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (M.V.P.); (A.E.B.); (P.B.K.)
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Andrei E. Brester
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (M.V.P.); (A.E.B.); (P.B.K.)
| | - Pavel B. Kurmashov
- Department of Chemistry and Chemical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (M.V.P.); (A.E.B.); (P.B.K.)
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Zhuravlev YN, Atuchin VV. Comprehensive Density Functional Theory Studies of Vibrational Spectra of Carbonates. Nanomaterials (Basel) 2020; 10:E2275. [PMID: 33212956 PMCID: PMC7698329 DOI: 10.3390/nano10112275] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 01/27/2023]
Abstract
Within the framework of the density functional theory (DFT) and the hybrid functional B3LYP by means of the CRYSTAL17 program code, the wavenumbers and intensities of normal oscillations of MgCO3, CaCO3, ZnCO3, CdCO3 in the structure of calcite; CaMg(CO3)2, CdMg(CO3)2, CaMn(CO3)2, CaZn(CO3)2 in the structure of dolomite; BaMg(CO3)2 in the structure of the norsethite type; and CaCO3, SrCO3, BaCO3, and PbCO3 in the structure of aragonite were calculated. Infrared absorption and Raman spectra were compared with the known experimental data of synthetic and natural crystals. For lattice and intramolecular modes, linear dependences on the radius and mass of the metal cation are established. The obtained dependences have predictive power and can be used to study solid carbonate solutions. For trigonal and orthorhombic carbonates, the linear dependence of wavenumbers on the cation radius RM (or M-O distance) is established for the infrared in-plane bending mode: 786.2-65.88·RM and Raman in-plane stretching mode: 768.5-53.24·RM, with a correlation coefficient of 0.87.
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Affiliation(s)
- Yurii N. Zhuravlev
- Institute of Basic Sciences, Kemerovo State University, 650000 Kemerovo, Russia;
| | - Victor V. Atuchin
- Research and Development Department, Kemerovo State University, 650000 Kemerovo, Russia
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, 630090 Novosibirsk, Russia
- Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, 630090 Novosibirsk, Russia
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Vinokurov V, Novikov A, Rodnova V, Anikushin B, Kotelev M, Ivanov E, Lvov Y. Cellulose Nanofibrils and Tubular Halloysite as Enhanced Strength Gelation Agents. Polymers (Basel) 2019; 11:E919. [PMID: 31137717 PMCID: PMC6571770 DOI: 10.3390/polym11050919] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 01/22/2023] Open
Abstract
Silica gels are widely employed in water shutoff services, making them an essential tool in oil well management. Silica nanoparticles may serve as a strengthening additive for polymer hydrogels. In this study, we look at this statement from a different angle: What additives could be used to increase the strength of silica gels? Colloidal silica gels were prepared with various additives, and gel strength was measured by a Veiler-Rebinder apparatus. We found that cellulose nanofibrils considerably increase the gel strength (from 20-25 to 35-40 kPa), which is comparable with the industrial anionic polymer Praestol 2540. Cellulose nanofibrils can be produced from cheap industrial-grade cellulose with low-cost industrial chemicals and could be partially replaced by the even less expensive halloysite nanoclay. Cellulose nanofibrils produced from renewable sources and naturally occurring halloysite nanoclay could be used as complementary reinforcing agents.
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Affiliation(s)
- Vladimir Vinokurov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Andrei Novikov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Valentina Rodnova
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- NPK Spetsburmaterialy, Zhukovskiy, 140131 Moscow, Russia.
| | - Boris Anikushin
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Mikhail Kotelev
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Evgenii Ivanov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
| | - Yuri Lvov
- Functional Aluminosilicate Nanomaterials Lab, Gubkin University, 119991 Moscow, Russia.
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA.
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