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Article ; Online: Family of Well-Defined Chiral-at-Cobalt(III) Complexes as Metal-Templated Hydrogen-Bond-Donor Catalysts: Effect of Chirality at the Metal Center on the Stereochemical Outcome of the Reaction.

Khromova, Olga V / Emelyanov, Mikhail A / Smol'yakov, Alexander F / Fedyanin, Ivan V / Maleev, Victor I / Larionov, Vladimir A

Inorganic chemistry

2022 Volume 61, Issue 14, Page(s) 5512–5523

Abstract: A family of well-defined Λ- and Δ-diastereomeric octahedral cationic chiral-at-cobalt complexes were obtained by a simple two-step reaction of ( ...

Abstract	A family of well-defined Λ- and Δ-diastereomeric octahedral cationic chiral-at-cobalt complexes were obtained by a simple two-step reaction of (
Language	English
Publishing date	2022-03-31
Publishing country	United States
Document type	Journal Article
ZDB-ID	1484438-2
ISSN	1520-510X ; 0020-1669
ISSN (online)	1520-510X
ISSN	0020-1669
DOI	10.1021/acs.inorgchem.1c03927
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Article ; Online: Multi-Terminal Nonwoven Stochastic Memristive Devices Based on Polyamide-6 and Polyaniline for Neuromorphic Computing.

Prudnikov, Nikita / Malakhov, Sergey / Kulagin, Vsevolod / Emelyanov, Andrey / Chvalun, Sergey / Demin, Vyacheslav / Erokhin, Victor

Biomimetics (Basel, Switzerland)

2023 Volume 8, Issue 2

Abstract: Reservoir computing systems are promising for application in bio-inspired neuromorphic networks as they allow the considerable reduction of training energy and time costs as well as an overall system complexity. Conductive three-dimensional structures ... ...

Abstract	Reservoir computing systems are promising for application in bio-inspired neuromorphic networks as they allow the considerable reduction of training energy and time costs as well as an overall system complexity. Conductive three-dimensional structures with the ability of reversible resistive switching are intensively developed to be applied in such systems. Nonwoven conductive materials, due to their stochasticity, flexibility and possibility of large-scale production, seem promising for this task. In this work, fabrication of a conductive 3D material by polyaniline synthesis on a polyamide-6 nonwoven matrix was shown. An organic stochastic device with a prospective to be used in reservoir computing systems with multiple inputs was created based on this material. The device demonstrates different responses (output current) when different combinations of voltage pulses are applied to the inputs. The approach is tested in handwritten digit image classification task in simulation with the overall accuracy exceeding 96%. This approach is beneficial for processing multiple data flows within a single reservoir device.
Language	English
Publishing date	2023-05-03
Publishing country	Switzerland
Document type	Journal Article
ISSN	2313-7673
ISSN (online)	2313-7673
DOI	10.3390/biomimetics8020189
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Article: Memristive circuit-based model of central pattern generator to reproduce spinal neuronal activity in walking pattern.

Masaev, Dinar N / Suleimanova, Alina A / Prudnikov, Nikita V / Serenko, Mariia V / Emelyanov, Andrey V / Demin, Vyacheslav A / Lavrov, Igor A / Talanov, Max O / Erokhin, Victor V

Frontiers in neuroscience

2023 Volume 17, Page(s) 1124950

Abstract: Existing methods of neurorehabilitation include invasive or non-invasive stimulators that are usually simple digital generators with manually set parameters like pulse width, period, burst duration, and frequency of stimulation series. An obvious lack of ...

Abstract	Existing methods of neurorehabilitation include invasive or non-invasive stimulators that are usually simple digital generators with manually set parameters like pulse width, period, burst duration, and frequency of stimulation series. An obvious lack of adaptation capability of stimulators, as well as poor biocompatibility and high power consumption of prosthetic devices, highlights the need for medical usage of neuromorphic systems including memristive devices. The latter are electrical devices providing a wide range of complex synaptic functionality within a single element. In this study, we propose the memristive schematic capable of self-learning according to bio-plausible spike-timing-dependant plasticity to organize the electrical activity of the walking pattern generated by the central pattern generator.
Language	English
Publishing date	2023-02-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2411902-7
ISSN	1662-453X ; 1662-4548
ISSN (online)	1662-453X
ISSN	1662-4548
DOI	10.3389/fnins.2023.1124950
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Article ; Online: Oncolytic Efficacy of a Recombinant Vaccinia Virus Strain Expressing Bacterial Flagellin in Solid Tumor Models.

Shakiba, Yasmin / Vorobyev, Pavel O / Naumenko, Victor A / Kochetkov, Dmitry V / Zajtseva, Ksenia V / Valikhov, Marat P / Yusubalieva, Gaukhar M / Gumennaya, Yana D / Emelyanov, Egor A / Semkina, Alevtina S / Baklaushev, Vladimir P / Chumakov, Peter M / Lipatova, Anastasia V

Viruses

2023 Volume 15, Issue 4

Abstract: Oncolytic viral therapy is a promising novel approach to cancer treatment. Oncolytic viruses cause tumor regression through direct cytolysis on the one hand and recruiting and activating immune cells on the other. In this study, to enhance the antitumor ... ...

Abstract	Oncolytic viral therapy is a promising novel approach to cancer treatment. Oncolytic viruses cause tumor regression through direct cytolysis on the one hand and recruiting and activating immune cells on the other. In this study, to enhance the antitumor efficacy of the thymidine kinase-deficient vaccinia virus (VV, Lister strain), recombinant variants encoding bacterial flagellin (subunit B) of
MeSH term(s)	Animals ; Mice ; Vaccinia virus/genetics ; Flagellin/genetics ; Melanoma, Experimental ; Oncolytic Viruses/genetics ; Oncolytic Virotherapy/methods ; Cell Line, Tumor
Chemical Substances	Flagellin (12777-81-0)
Language	English
Publishing date	2023-03-24
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2516098-9
ISSN	1999-4915 ; 1999-4915
ISSN (online)	1999-4915
ISSN	1999-4915
DOI	10.3390/v15040828
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Article: Structural Properties and Energy Spectrum of Novel GaSb/AlP Self-Assembled Quantum Dots.

Abramkin, Demid S / Petrushkov, Mikhail O / Bogomolov, Dmitrii B / Emelyanov, Eugeny A / Yesin, Mikhail Yu / Vasev, Andrey V / Bloshkin, Alexey A / Koptev, Eugeny S / Putyato, Mikhail A / Atuchin, Victor V / Preobrazhenskii, Valery V

Nanomaterials (Basel, Switzerland)

2023 Volume 13, Issue 5

Abstract: In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental methods. The growth conditions for the SAQDs' formation by molecular beam epitaxy on both matched ... ...

Abstract	In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental methods. The growth conditions for the SAQDs' formation by molecular beam epitaxy on both matched GaP and artificial GaP/Si substrates were determined. An almost complete plastic relaxation of the elastic strain in SAQDs was reached. The strain relaxation in the SAQDs on the GaP/Si substrates does not lead to a reduction in the SAQDs luminescence efficiency, while the introduction of dislocations into SAQDs on the GaP substrates induced a strong quenching of SAQDs luminescence. Probably, this difference is caused by the introduction of Lomer 90°-dislocations without uncompensated atomic bonds in GaP/Si-based SAQDs, while threading 60°-dislocations are introduced into GaP-based SAQDs. It was shown that GaP/Si-based SAQDs have an energy spectrum of type II with an indirect bandgap and the ground electronic state belonging to the X-valley of the AlP conduction band. The hole localization energy in these SAQDs was estimated equal to 1.65-1.70 eV. This fact allows us to predict the charge storage time in the SAQDs to be as long as >>10 years, and it makes GaSb/AlP SAQDs promising objects for creating universal memory cells.
Language	English
Publishing date	2023-02-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662255-5
ISSN	2079-4991
ISSN	2079-4991
DOI	10.3390/nano13050910
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Article ; Online: Synthesis and a Catalytic Study of Diastereomeric Cationic Chiral-at-Cobalt Complexes Based on (

Emelyanov, Mikhail A / Stoletova, Nadezhda V / Smol'yakov, Alexander F / Il'in, Mikhail M / Maleev, Victor I / Larionov, Vladimir A

Inorganic chemistry

2021 Volume 60, Issue 18, Page(s) 13960–13967

Abstract: Here we report the first synthesis of two diastereomeric cationic octahedral Co(III) complexes based on commercially available ( ...

Abstract	Here we report the first synthesis of two diastereomeric cationic octahedral Co(III) complexes based on commercially available (
Language	English
Publishing date	2021-08-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	1484438-2
ISSN	1520-510X ; 0020-1669
ISSN (online)	1520-510X
ISSN	0020-1669
DOI	10.1021/acs.inorgchem.1c00855
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Article ; Online: Mitochondrial porin VDAC 1 seems to be functional in rickettsial cells.

Emelyanov, Victor V

Annals of the New York Academy of Sciences

2009 Volume 1166, Page(s) 38–48

Abstract: We have recently shown that Rickettsia prowazekii (typhus group rickettsiae) cells incorporate human mitochondrial porin VDAC1. Here, I report on the import of porin by rickettsiae of spotted fever group. It was shown that rickettsial cells of heavy band ...

Abstract	We have recently shown that Rickettsia prowazekii (typhus group rickettsiae) cells incorporate human mitochondrial porin VDAC1. Here, I report on the import of porin by rickettsiae of spotted fever group. It was shown that rickettsial cells of heavy band of Renografin density gradient, known as permeabilized rickettsiae, contain much more VDAC 1 compared to the cells of light band, that is, non-permeabilized rickettsiae. These data hint at a functionality of mitochondrial porin in rickettsial cells. The cells of Rickettsia canadensis were broken in French-press, and total membranes were fractionated on linear sucrose density gradient. In this way, previous data were confirmed that an outer rickettsial membrane does not contain porin, while fraction of intermediate density, which likely represents Bayer's adhesion zones, is enriched in VDAC 1. This is consistent with earlier results and their interpretation that imported porin seems to localize to contact sites between inner and outer rickettsial membranes. Based on well-known phylogenetic relationship of Rickettsiales and mitochondria, an evolutionary scenario for the origin of protein import machinery is proposed. A dependence of rickettsiae upon essential protein(s), destined to organelle, is also viewed as a nature of their obligate endosymbiotic lifestyle.
MeSH term(s)	Animals ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Humans ; Mitochondria/metabolism ; Mitochondria/ultrastructure ; Rickettsia/cytology ; Rickettsia/metabolism ; Voltage-Dependent Anion Channel 1/genetics ; Voltage-Dependent Anion Channel 1/metabolism
Chemical Substances	Bacterial Proteins ; Voltage-Dependent Anion Channel 1 (EC 1.6.-)
Language	English
Publishing date	2009-05
Publishing country	United States
Document type	Journal Article
ZDB-ID	211003-9
ISSN	1749-6632 ; 0077-8923
ISSN (online)	1749-6632
ISSN	0077-8923
DOI	10.1111/j.1749-6632.2009.04513.x
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Article: Dislocation Filter Based on LT-GaAs Layers for Monolithic GaAs/Si Integration.

Petrushkov, Mikhail O / Abramkin, Demid S / Emelyanov, Eugeny A / Putyato, Mikhail A / Komkov, Oleg S / Firsov, Dmitrii D / Vasev, Andrey V / Yesin, Mikhail Yu / Bakarov, Askhat K / Loshkarev, Ivan D / Gutakovskii, Anton K / Atuchin, Victor V / Preobrazhenskii, Valery V

Nanomaterials (Basel, Switzerland)

2022 Volume 12, Issue 24

Abstract: The use of low-temperature (LT) GaAs layers as dislocation filters in GaAs/Si heterostructures (HSs) was investigated in this study. The effects of intermediate LT-GaAs layers and of the post-growth and cyclic in situ annealing on the structural ... ...

Abstract	The use of low-temperature (LT) GaAs layers as dislocation filters in GaAs/Si heterostructures (HSs) was investigated in this study. The effects of intermediate LT-GaAs layers and of the post-growth and cyclic in situ annealing on the structural properties of GaAs/LT-GaAs/GaAs/Si(001) HSs were studied. It was found that the introduction of LT-GaAs layers, in combination with post-growth cyclic annealing, reduced the threading dislocation density down to 5 × 10
Language	English
Publishing date	2022-12-14
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662255-5
ISSN	2079-4991
ISSN	2079-4991
DOI	10.3390/nano12244449
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Article ; Online: Structural Properties and Energy Spectrum of Novel GaSb/AlP Self-Assembled Quantum Dots

Demid S. Abramkin / Mikhail O. Petrushkov / Dmitrii B. Bogomolov / Eugeny A. Emelyanov / Mikhail Yu. Yesin / Andrey V. Vasev / Alexey A. Bloshkin / Eugeny S. Koptev / Mikhail A. Putyato / Victor V. Atuchin / Valery V. Preobrazhenskii

Nanomaterials, Vol 13, Iss 910, p

2023 Volume 910

Abstract: In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental methods. The growth conditions for the SAQDs’ formation by molecular beam epitaxy on both matched ... ...

Abstract	In this work, the formation, structural properties, and energy spectrum of novel self-assembled GaSb/AlP quantum dots (SAQDs) were studied by experimental methods. The growth conditions for the SAQDs’ formation by molecular beam epitaxy on both matched GaP and artificial GaP/Si substrates were determined. An almost complete plastic relaxation of the elastic strain in SAQDs was reached. The strain relaxation in the SAQDs on the GaP/Si substrates does not lead to a reduction in the SAQDs luminescence efficiency, while the introduction of dislocations into SAQDs on the GaP substrates induced a strong quenching of SAQDs luminescence. Probably, this difference is caused by the introduction of Lomer 90°-dislocations without uncompensated atomic bonds in GaP/Si-based SAQDs, while threading 60°-dislocations are introduced into GaP-based SAQDs. It was shown that GaP/Si-based SAQDs have an energy spectrum of type II with an indirect bandgap and the ground electronic state belonging to the X-valley of the AlP conduction band. The hole localization energy in these SAQDs was estimated equal to 1.65–1.70 eV. This fact allows us to predict the charge storage time in the SAQDs to be as long as >>10 years, and it makes GaSb/AlP SAQDs promising objects for creating universal memory cells.
Keywords	quantum dots ; GaSb/AlP ; molecular beam epitaxy ; structural properties ; energy spectrum ; QD-Flash ; Chemistry ; QD1-999
Subject code	530
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
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Article ; Online: Fermentation enzymes of Giardia intestinalis, pyruvate:ferredoxin oxidoreductase and hydrogenase, do not localize to its mitosomes.

Emelyanov, Victor V / Goldberg, Alina V

Microbiology (Reading, England)

2011 Volume 157, Issue Pt 6, Page(s) 1602–1611

Abstract: It is becoming increasingly clear that the so-called remnant organelles of microaerophilic unicellular eukaryotes, hydrogenosomes and mitosomes, are significantly reduced versions of mitochondria. They normally lack most of the classic mitochondrial ... ...

Abstract	It is becoming increasingly clear that the so-called remnant organelles of microaerophilic unicellular eukaryotes, hydrogenosomes and mitosomes, are significantly reduced versions of mitochondria. They normally lack most of the classic mitochondrial attributes, such as an electron transport chain and a genome. While hydrogenosomes generate energy by substrate-level phosphorylation along a hydrogen-producing fermentation pathway, involving iron-sulfur-cluster-containing enzymes pyruvate : ferredoxin oxidoreductase (PFO) and hydrogenase, whether mitosomes participate in ATP synthesis is currently unknown. Both enzymes were recently described in the mitosome-bearing diplomonad Giardia intestinalis, also shown to produce molecular hydrogen. As published data show that giardial PFO is a membrane-associated enzyme, it could be suspected that PFO and hydrogenase operate in the mitosome, in which case the latter would by definition be a hydrogenosome. Using antibodies against recombinant enzymes of G. intestinalis, it was shown by Western blot analysis of subcellular fractions and by confocal immunofluorescence microscopy of whole cells that neither PFO nor hydrogenase localize to the mitosome, but are mostly found in the cytosol. The giardial mitosome is known to play a role in iron-sulfur cluster assembly and to contain chaperones Cpn60 and mtHsp70, which assist, in particular, in protein import. In mitochondria, transmembrane potential is essential for this complex process. Using MitoTracker Red and organelle-specific antibodies, transmembrane potential could be detected in the Trichomonas vaginalis hydrogenosome, but not in the G. intestinalis mitosome. These results provide further evidence that the Giardia mitosome is one of the most highly reduced mitochondrial homologues.
MeSH term(s)	Animals ; Blotting, Western ; Cytosol/enzymology ; Cytosol/ultrastructure ; Fermentation ; Giardia lamblia/enzymology ; Giardia lamblia/growth & development ; Giardia lamblia/metabolism ; Giardia lamblia/ultrastructure ; Hydrogenase/genetics ; Hydrogenase/metabolism ; Membrane Potential, Mitochondrial ; Microscopy, Confocal ; Microscopy, Fluorescence ; Mitochondria/metabolism ; Mitochondria/ultrastructure ; Organelles/metabolism ; Organelles/physiology ; Organelles/ultrastructure ; Protein Transport ; Protozoan Proteins/genetics ; Protozoan Proteins/metabolism ; Pyruvate Synthase/genetics ; Pyruvate Synthase/metabolism
Chemical Substances	Protozoan Proteins ; Hydrogenase (EC 1.12.7.2) ; Pyruvate Synthase (EC 1.2.7.1)
Language	English
Publishing date	2011-02-24
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1180712-x
ISSN	1465-2080 ; 1350-0872
ISSN (online)	1465-2080
ISSN	1350-0872
DOI	10.1099/mic.0.044784-0
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