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Mensah EO, Alqubelat RS, Menzorova YA, Minin AS, Mironov MA. Effective pickering emulsifiers based on submicron carboxymethyl cellulose/chitosan polymer particles. Colloids Surf B Biointerfaces 2024; 236:113827. [PMID: 38430830 DOI: 10.1016/j.colsurfb.2024.113827] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
In this study, cross-linked carboxymethyl cellulose/chitosan submicron particles were employed to facilitate the stabilization of Pickering emulsion. The polymer particles were prepared using the polyelectrolyte self-assembly method in conjunction with isocyanide based multicomponent reactions and the characteristics were obtained using: nuclear magnetic resonance, Fourier-transform infrared spectroscopy and dynamic light scattering. Atomic force microscopy revealed the heterogeneous structure of the resulting submicron particles with domains of 20-30 nm in size. The average diameter was found to be in the range of 229-378 nm and they were found to be suitable for the fabrication of oil/water Pickering emulsion when proceeded via the homogenization method followed by sonication. The results obtained revealed that carboxymethyl cellulose/chitosan particles significantly stabilized the droplets at the oil/water interface. Even at low particle concentrations of 0.3 g/L (which is close to that of low molecular weight surfactants) stable Pickering emulsions have been obtained. Additionally, the resulting emulsions showed a high level of stability with regard to changes in pH, temperature and ionic strength. The natural alkaloid piperine was used as a model compound to load the resulting particles, which possessed encapsulation efficiency of 90.6±0.4%. Furthermore, the in vitro release profile of piperine from the Pickering emulsion revealed a much-controlled release in both acidic and neutral media as compared to the unformulated piperine. Additional findings in this work revealed important information on the application of carboxymethyl cellulose/chitosan submicron particles as Pickering stabilizers for creation of new delivery systems.
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Affiliation(s)
- Emmanuel O Mensah
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg 620002, Russian Federation
| | - Rita S Alqubelat
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg 620002, Russian Federation
| | - Yaroslava A Menzorova
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg 620002, Russian Federation
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, S.Kovalevskaya st., 18, Ekaterinburg 620108, Russian Federation
| | - Maxim A Mironov
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg 620002, Russian Federation.
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Obiedallah MM, Melekhin VV, Menzorova YA, Bulya ET, Minin AS, Mironov MA. Fucoidan coated liposomes loaded with novel antituberculosis agent: preparation, evaluation, and cytotoxicity study. Pharm Dev Technol 2024; 29:311-321. [PMID: 38529643 DOI: 10.1080/10837450.2024.2332454] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024]
Abstract
In this article, we described a novel antituberculosis imidazotetrazine derivative designed in fucoidan-coated liposomes to reduce its cytotoxicity and investigate its mucoadhesive properties. Firstly, fucoidan extracted from Ascophyllum nodosum was used for additional stabilization of liposomal suspensions and to give it mucoadhesive properties. PEG-600 and/or Tween-80 were used to increase the shelf life of liposomal suspension. The ratio of the fucoidan: lipids 1:2 was found to be the optimum that produces stable fucoidan-coated liposomes. The particle size of the optimum formulation was 336.3 ± 5.4, the PDI was 0.33, and the zeta potential was -39.6. This size and the practical spherical shape of the particles were confirmed by atomic force microscopy. In addition, the in vitro release profiles from uncoated and fucoidan-coated liposomes revealed significant and faster release compared to free antituberculosis agent. Using the MTT assay test, the fucoidan-coated liposomes exhibited fourteen times lower cytotoxicity (IC50 7.14 ± 0.91 µg/ml) than the free drug (IC50 0.49 ± 0.06). Moreover, the mucoadhesive capabilities of these liposomal formulations were also confirmed using snail mucin, which highlighting their potential use as an effective delivery system for antituberculosis therapy, with notable improvements in dissolution rate and reduced cytotoxicity.
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Affiliation(s)
- Manar M Obiedallah
- Institute of Chemical Technology, Ural Federal University, Ekaterinburg, Russia
- Department of Pharmaceutics, Assiut University, Assiut, Egypt
| | - Vsevolod V Melekhin
- Institute of Chemical Technology, Ural Federal University, Ekaterinburg, Russia
- Department of Medical Biology and Genetics, Ural State Medical University, Ekaterinburg, Russia
| | | | - Emmanuella T Bulya
- Institute of Chemical Technology, Ural Federal University, Ekaterinburg, Russia
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation
| | - Maxim A Mironov
- Institute of Chemical Technology, Ural Federal University, Ekaterinburg, Russia
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Obiedallah MM, Mironov MA, Belyaev DV, Ene A, Vakhrusheva DV, Krasnoborova SY, Bershitsky SY, Shchepkin DV, Minin AS, Ishmetova RI, Ignatenko NK, Tolshchina SG, Fedorova OV, Rusinov GL. Author Correction: Optimization, characterization, and cytotoxicity studies of novel anti-tubercular agent-loaded liposomal vesicles. Sci Rep 2024; 14:2183. [PMID: 38272961 PMCID: PMC10810868 DOI: 10.1038/s41598-024-52283-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Affiliation(s)
- Manar M Obiedallah
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia.
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
| | - Maxim A Mironov
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia.
| | - Danila V Belyaev
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Antoaneta Ene
- INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania.
| | - Diana V Vakhrusheva
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Svetlana Yu Krasnoborova
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Sergey Y Bershitsky
- Institute of Immunology and Physiology, Ural Branch of Russian Academy of Sciences, Yekaterinburg, 620049, Russia
| | - Daniil V Shchepkin
- Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, S.Kovalevskaya St. 18, Yekaterinburg, 620108, Russia
| | - Rashida I Ishmetova
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Nina K Ignatenko
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Svetlana G Tolshchina
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Olga V Fedorova
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Gennady L Rusinov
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
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Obiedallah MM, Mironov MA, Belyaev DV, Ene A, Vakhrusheva DV, Krasnoborova SY, Bershitsky SY, Shchepkin DV, Minin AS, Ishmetova RI, Ignatenko NK, Tolshchina SG, Fedorova OV, Rusinov GL. Optimization, characterization, and cytotoxicity studies of novel anti-tubercular agent-loaded liposomal vesicles. Sci Rep 2024; 14:524. [PMID: 38177202 PMCID: PMC10766644 DOI: 10.1038/s41598-023-49576-2] [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: 03/27/2023] [Accepted: 12/09/2023] [Indexed: 01/06/2024] Open
Abstract
The treatment of tuberculosis is still a challenging process due to the widespread of pathogen strains resistant to antibacterial drugs, as well as the undesirable effects of anti-tuberculosis therapy. Hence, the development of safe and effective new anti-antitubercular agents, in addition to suitable nanocarrier systems, has become of utmost importance and necessity. Our research aims to develop liposomal vesicles that contain newly synthesized compounds with antimycobacterial action. The compound being studied is a derivative of imidazo-tetrazine named 3-(3,5-dimethylpyrazole-1-yl)-6-(isopropylthio) imidazo [1,2-b] [1,2,4,5] tetrazine compound. Several factors that affect liposomal characteristics were studied. The maximum encapsulation efficiency was 53.62 ± 0.09. The selected liposomal formulation T8* possessed a mean particle size of about 205.3 ± 3.94 nm with PDI 0.282, and zeta potential was + 36.37 ± 0.49 mv. The results of the in vitro release study indicated that the solubility of compound I was increased by its incorporation in liposomes. The free compound and liposomal preparation showed antimycobacterial activity against Mycobacterium tuberculosis H37Rv (ATCC 27294) at MIC value 0.94-1.88 μg/ml. We predict that the liposomes may be a good candidate for delivering new antitubercular drugs.
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Affiliation(s)
- Manar M Obiedallah
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia.
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
| | - Maxim A Mironov
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia.
| | - Danila V Belyaev
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Antoaneta Ene
- INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania.
| | - Diana V Vakhrusheva
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Svetlana Yu Krasnoborova
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, 22 Parts'ezda St., 50, Yekaterinburg, 620039, Russia
| | - Sergey Y Bershitsky
- Institute of Immunology and Physiology, Ural Branch of Russian Academy of Sciences, Yekaterinburg, 620049, Russia
| | - Daniil V Shchepkin
- Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, S.Kovalevskaya St. 18, Yekaterinburg, 620108, Russia
| | - Rashida I Ishmetova
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Nina K Ignatenko
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Svetlana G Tolshchina
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Olga V Fedorova
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
| | - Gennady L Rusinov
- Institute of Chemical Technology, Ural Federal University, Yekaterinburg, Russia
- I. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str. 22, Yekaterinburg, 620108, Russia
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Gagarin AA, Minin AS, Shevyrin VA, Kostova IP, Benassi E, Belskaya NP. Photocaging of Carboxylic Function Bearing Biomolecules by New Thiazole Derived Fluorophore. Chemistry 2023; 29:e202302079. [PMID: 37530503 DOI: 10.1002/chem.202302079] [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: 06/30/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/03/2023]
Abstract
The design and synthesis of a new fluorophore containing an arylidene thiazole scaffold resulted in a compound with good photophysical characteristics. Furthermore, the thiazole C5-methyl group was easily modified into specific functional groups (CH2 Br and CH2 OH) for the formation of a series of photocourier molecules containing model compounds (benzoic acids), as well as prodrugs, including salicylic acid, caffeic acid, and chlorambucil via a "benzyl" linker. Spectral characteristics (1 H, 13 C NMR, and high-resolution mass spectra) corresponded to the proposed structures. The photocourier molecules demonstrated absorption with high values of coefficient of molar extinction, exhibited contrasting green emission, and showed good dark stability. The mechanism of the photorelease was investigated through spectral analysis, HPLC-HRMS, and supported by TD-DFT calculations. The photoheterolysis and elimination of carboxylic acids were proved to occur in the excited state, yielding a carbocation as an intermediate moiety. The fluorophore structure provided stability to the carbocation through the delocalization of the positive charge via resonance structures. Viability assessment of Vero cells using the MTT-test confirmed the weak cytotoxicity of prodrugs without irradiation and it increase upon UV-light.
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Affiliation(s)
- Aleksey A Gagarin
- Department of Technology for Organic Synthesis, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Artem S Minin
- Department of Technology for Organic Synthesis, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
- M. N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Science, 18S. Kovalevskaya Str., Yekaterinburg, 620108, Russia
| | - Vadim A Shevyrin
- Department of Technology for Organic Synthesis, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
| | - Irena P Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav Str., Sofia, Bulgaria
| | - Enrico Benassi
- Novosibirsk State University, Pirogova Str. 2, 630090, Novosibirsk, Russia
| | - Nataliya P Belskaya
- Department of Technology for Organic Synthesis, Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia
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Alqubelat RS, Obiedallah MM, Minin AS, Lazzara G, Mironov MA. Application of the Ugi reaction for preparation of submicron capsules based on sugar beet pectin. Mol Divers 2023; 27:1957-1969. [PMID: 36098859 DOI: 10.1007/s11030-022-10525-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/29/2022] [Indexed: 10/14/2022]
Abstract
The Ugi four-component condensation in diluted liposomal suspensions was used to prepare pectin-based submicron capsules. A set of isocyanides and aldehydes was used to optimize the synthesis of capsule shells. Modified sugar beet pectin was selected as a natural polymer with pronounced surface activity to create a capsule shell. At first, liposomal composition was optimized in order to select suitable conditions for capsule formation. Then, the wide set of capsules constructed on modified sugar beet pectin scaffold has been synthesized. The choice was determined by level of substitution degree and possible chemical diversity of the modified surface. Detailed characterization of products has been performed for polysaccharide particles with liposomal core prepared with various processing parameters (concentration, cross-linking components, the density of linkage). The chemical structure, average size, polydispersity index, morphology, stability, and cytotoxicity of obtained particles have been investigated in dependence on the shell content. The obtained submicrometer cross-linked capsules (220-240 nm) with controlled colloidal properties showed high stability and low toxicity. Thus, the proposed carriers have a great potential as sustained drug delivery systems for different administration routes.
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Affiliation(s)
- Rita S Alqubelat
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg, Russian Federation, 620002
| | - Manar M Obiedallah
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg, Russian Federation, 620002
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, S.Kovalevskaya st., 18, Ekaterinburg, Russian Federation, 620108
| | - Giuseppe Lazzara
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze - Pad. 17, 90128, Palermo, Italy
| | - Maxim A Mironov
- Department of Technology for Organic Synthesis, Ural Federal University, Mira st. 19, Ekaterinburg, Russian Federation, 620002.
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Khonina TG, Demin AM, Tishin DS, Germov AY, Uimin MA, Mekhaev AV, Minin AS, Karabanalov MS, Mysik AA, Bogdanova EA, Krasnov VP. Magnetic Nanocomposite Materials Based on Fe 3O 4 Nanoparticles with Iron and Silica Glycerolates Shell: Synthesis and Characterization. Int J Mol Sci 2023; 24:12178. [PMID: 37569552 PMCID: PMC10419229 DOI: 10.3390/ijms241512178] [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: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Novel magnetic nanocomposite materials based on Fe3O4 nanoparticles coated with iron and silica glycerolates (MNP@Fe(III)Glyc and MNP@Fe(III)/SiGlyc) were obtained. The synthesized nanocomposites were characterized using TEM, XRD, TGA, VMS, Mössbauer and IR spectroscopy. The amount of iron and silica glycerolates in the nanocomposites was calculated from the Mössbauer spectroscopy, ICP AES and C,H-elemental analysis. Thus, it has been shown that the distribution of Fe in the shell and core for MNP@Fe(III)Glyc and MNP@Fe(III)/SiGlyc is 27:73 and 32:68, respectively. The synthesized nanocomposites had high specific magnetization values and a high magnetic response to the alternating magnetic field. The hydrolysis of shells based on Fe(III)Glyc and Fe(III)/SiGlyc in aqueous media has been studied. It has been demonstrated that, while the iron glycerolates shell of MNP@Fe(III)Glyc is resistant to hydrolysis, the silica glycerolates shell of MNP@Fe(III)/SiGlyc is rather labile and hydrolyzed by 76.4% in 24 h at 25 °C. The synthesized materials did not show cytotoxicity in in vitro experiments (MTT-assay). The data obtained can be used in the design of materials for controlled-release drug delivery.
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Affiliation(s)
- Tat’yana G. Khonina
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (T.G.K.); (A.V.M.); (V.P.K.)
| | - Alexander M. Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (T.G.K.); (A.V.M.); (V.P.K.)
| | - Denis S. Tishin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (T.G.K.); (A.V.M.); (V.P.K.)
| | - Alexander Yu. Germov
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (A.Y.G.); (M.A.U.); (A.S.M.); (A.A.M.)
| | - Mikhail A. Uimin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (A.Y.G.); (M.A.U.); (A.S.M.); (A.A.M.)
| | - Alexander V. Mekhaev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (T.G.K.); (A.V.M.); (V.P.K.)
| | - Artem S. Minin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (A.Y.G.); (M.A.U.); (A.S.M.); (A.A.M.)
| | - Maxim S. Karabanalov
- Institute of New Materials and Technologies, Ural Federal University, 620002 Ekaterinburg, Russia;
| | - Alexey A. Mysik
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (A.Y.G.); (M.A.U.); (A.S.M.); (A.A.M.)
| | - Ekaterina A. Bogdanova
- Institute of Solid State Chemistry, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia;
| | - Victor P. Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia; (T.G.K.); (A.V.M.); (V.P.K.)
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Safronov NE, Minin AS, Slepukhin PA, Kostova IP, Benassi E, Belskaya NP. 5-Amino-2-aryl-2H-1,2,3-triazole-4-carboxamides: Unique AIEE-gens and selective Hg 2+ fluorosensors. Spectrochim Acta A Mol Biomol Spectrosc 2023; 292:122419. [PMID: 36764140 DOI: 10.1016/j.saa.2023.122419] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
A series of fluorescent sensors based on small molecule were designed and fully characterised, demonstrating AIEE effect and revealing an outstanding ability to selectively detect Hg2+ ions. The structural and electronic properties were studied through quantum chemical calculations at (Time-Dependent) Density Functional Theory ((TD)-DFT) level. Carboxamides of 2-Aryl-1,2,3-Triazoles (CATs) showed significant differences in their photophysical properties depending on the structure of the substituent at amino function on the C5-atom in the heterocycle. When the tert-cycloalkylamino group (pyrrolidine, piperidine, azepane) was attached, the triazoles exhibited highly intensive blue fluorescence, with quantum yields (QYs) up to 95 % and lifetime up to 6.9 ns in different solvents, whereas the QYs of congeners bearing secondary alkylaminogroups (viz., NHMe, NHC6H11-cyclo) indicate low QYs (1-10 %). Nevertheless, all types of the obtained fluorophores demonstrated excellent AIEE effect and formed fluorescent nanoparticles in a binary mixtures of organic solvents and water. The introduction of the carboxamide function enhances the sensing properties of 2-aryl-1,2,3-triazoles, providing a selective fluorescence quenching reaction in the presence of Hg2+. The fluorescence intensity of the CATs declines with the addition of 1.0 eq. of Hg2+ into DMSO-water (v/v, 1:9). The other cations used did not induce any appreciable changes in fluorescence intensity. The CATs form a complex with Hg2+ with highly specific detection for Hg2+ over other competitive metal ions: the detection limits were determined to be 0.23 and 0.15 μM for the CATs 1b and 2c. The reverse effect was registered with the addition of ethylene diamine sodium salt; meanwhile, the CATs demonstrated more effective coordination with Hg2+ in comparison with cysteine. This last finding, as well as the ability to detect Hg2+, is very valuable for application within biology and medicine.
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Affiliation(s)
| | - Artem S Minin
- Ural Federal University, 19 Mira Str., Yekaterinburg 620002, Russia; M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Science, 18 S. Kovalevskaya Str., Yekaterinburg 620108, Russia
| | - Pavel A Slepukhin
- Ural Federal University, 19 Mira Str., Yekaterinburg 620002, Russia; I. Ya. Postovsky Institute of Organic Synthesis, 20 S. Kovalevskaya Str., Yekaterinburg 620219, Russia
| | - Irena P Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University - Sofia, 2 Dunav Str., Sofia, Bulgaria
| | - Enrico Benassi
- Novosibirsk State University, Pirogova Str. 2, 630090 Novosibirsk, Russia.
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Girich EV, Trinh PTH, Nesterenko LE, Popov RS, Kim NY, Rasin AB, Menchinskaya ES, Kuzmich AS, Chingizova EA, Minin AS, Ngoc NTD, Van TTT, Yurchenko EA, Yurchenko AN, Berdyshev DV. Absolute Stereochemistry and Cytotoxic Effects of Vismione E from Marine Sponge-Derived Fungus Aspergillus sp. 1901NT-1.2.2. Int J Mol Sci 2023; 24:ijms24098150. [PMID: 37175852 PMCID: PMC10179051 DOI: 10.3390/ijms24098150] [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: 03/07/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The metabolic profile of the Aspergillus sp. 1901NT-1.2.2 sponge-associated fungal strain was investigated using the HPLC MS technique, and more than 23 peaks in the HPLC MS chromatogram were detected. Only two minor peaks were identified as endocrocin and terpene derivative MS data from the GNPS database. The main compound was isolated and identified as known anthraquinone derivative vismione E. The absolute stereochemistry of vismione E was established for the first time using ECD and quantum chemical methods. Vismione E showed high cytotoxic activity against human breast cancer MCF-7 cells, with an IC50 of 9.0 µM, in comparison with low toxicity for normal human breast MCF-10A cells, with an IC50 of 65.3 µM. It was found that vismione E inhibits MCF-7 cell proliferation and arrests the cell cycle in the G1 phase. Moreover, the negative influence of vismione E on MCF-7 cell migration was detected. Molecular docking of vismione E suggested the IMPDH2 enzyme as one of the molecular targets for this anthraquinone derivative.
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Affiliation(s)
- Elena V Girich
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Phan Thi Hoai Trinh
- Department of Marine Biotechnology, Nhatrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang 650000, Vietnam
| | - Liliana E Nesterenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
- Institute of High Technologies and Advanced Materials, Far Eastern Federal University, 10 Ajax Bay, Russky Island, Vladivostok 690922, Russia
| | - Roman S Popov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Natalya Yu Kim
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Anton B Rasin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Ekaterina S Menchinskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Aleksandra S Kuzmich
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Ekaterina A Chingizova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Artem S Minin
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, S. Kovalevskoi, 18, Ekaterinburg 620108, Russia
- Institute of Natural Sciences and Mathematics, The Ural Federal University Named after the First President of Russia B. N. Yeltsin, Lenina Av., 51, Ekaterinburg 620083, Russia
| | - Ngo Thi Duy Ngoc
- Department of Marine Biotechnology, Nhatrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang 650000, Vietnam
| | - Tran Thi Thanh Van
- Department of Marine Biotechnology, Nhatrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang 650000, Vietnam
| | - Ekaterina A Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Anton N Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
| | - Dmitry V Berdyshev
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Prospect 100-Letiya Vladivostoka, 159, Vladivostok 690022, Russia
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10
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Pershina AG, Demin AM, Perekucha NA, Brikunova OY, Efimova LV, Nevskaya KV, Vakhrushev AV, Zgoda VG, Uimin MA, Minin AS, Malkeyeva D, Kiseleva E, Zima AP, Krasnov VP, Ogorodova LM. Peptide ligands on the PEGylated nanoparticle surface and human serum composition are key factors for the interaction between immune cells and nanoparticles. Colloids Surf B Biointerfaces 2023; 221:112981. [DOI: 10.1016/j.colsurfb.2022.112981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
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11
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Demin AM, Vakhrushev AV, Valova MS, Korolyova MA, Uimin MA, Minin AS, Pozdina VA, Byzov IV, Tumashov AA, Chistyakov KA, Levit GL, Krasnov VP, Charushin VN. Effect of the Silica-Magnetite Nanocomposite Coating Functionalization on the Doxorubicin Sorption/Desorption. Pharmaceutics 2022; 14:2271. [PMID: 36365090 PMCID: PMC9694706 DOI: 10.3390/pharmaceutics14112271] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 08/13/2023] Open
Abstract
A series of new composite materials based on Fe3O4 magnetic nanoparticles coated with SiO2 (or aminated SiO2) were synthesized. It has been shown that the use of N-(phosphonomethyl)iminodiacetic acid (PMIDA) to stabilize nanoparticles before silanization ensures the increased content of a SiO2 phase in the Fe3O4@SiO2 nanocomposites (NCs) in comparison with materials obtained under similar conditions, but without PMIDA. It has been demonstrated for the first time that the presence of PMIDA on the surface of NCs increases the level of Dox loading due to specific binding, while surface modification with 3-aminopropylsilane, on the contrary, significantly reduces the sorption capacity of materials. These regularities were in accordance with the results of quantum chemical calculations. It has been shown that the energies of Dox binding to the functional groups of NCs are in good agreement with the experimental data on the Dox sorption on these NCs. The mechanisms of Dox binding to the surface of NCs were proposed: simultaneous coordination of Dox on the PMIDA molecule and silanol groups at the NC surface leads to a synergistic effect in Dox binding. The synthesized NCs exhibited pH-dependent Dox release, as well as dose-dependent cytotoxicity in in vitro experiments. The cytotoxic effects of the studied materials correspond to their calculated IC50 values. NCs with a SiO2 shell obtained using PMIDA exhibited the highest effect. At the same time, the presence of PMIDA in NCs makes it possible to increase the Dox loading, as well as to reduce its desorption rate, which may be useful in the design of drug delivery vehicles with a prolonged action. We believe that the data obtained can be further used to develop stimuli-responsive materials for targeted cancer chemotherapy.
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Affiliation(s)
- Alexander M. Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Alexander V. Vakhrushev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Marina S. Valova
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Marina A. Korolyova
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Mikhail A. Uimin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620990, Russia
| | - Artem S. Minin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620990, Russia
| | - Varvara A. Pozdina
- Institute of Immunology and Physiology, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620049, Russia
- Institute of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg 620002, Russia
| | - Iliya V. Byzov
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620990, Russia
| | - Andrey A. Tumashov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Konstantin A. Chistyakov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Galina L. Levit
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Victor P. Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
| | - Valery N. Charushin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, Russia
- Institute of Chemical Engineering, Ural Federal University, Ekaterinburg 620002, Russia
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12
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Demin AM, Vakhrushev AV, Pershina AG, Valova MS, Efimova LV, Syomchina AA, Uimin MA, Minin AS, Levit GL, Krasnov VP, Charushin VN. Magnetic-Responsive Doxorubicin-Containing Materials Based on Fe 3O 4 Nanoparticles with a SiO 2/PEG Shell and Study of Their Effects on Cancer Cell Lines. Int J Mol Sci 2022; 23:ijms23169093. [PMID: 36012356 PMCID: PMC9409415 DOI: 10.3390/ijms23169093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 12/31/2022] Open
Abstract
Novel nanocomposite materials based on Fe3O4 magnetic nanoparticles (MNPs) coated with silica and covalently modified by [(3-triethoxysilyl)propyl]succinic acid–polyethylene glycol (PEG 3000) conjugate, which provides a high level of doxorubicin (Dox) loading, were obtained. The efficiency of Dox desorption from the surface of nanomaterials under the action of an alternating magnetic field (AMF) in acidic and neutral media was evaluated. Their high cytotoxicity against tumor cells, as well as the drug release upon application of AMF, which leads to an increase in the cytotoxic effect, was demonstrated.
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Affiliation(s)
- Alexander M. Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
- Correspondence: (A.M.D.); (V.N.C.)
| | - Alexander V. Vakhrushev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Alexandra G. Pershina
- Center of Bioscience and Bioengineering, Siberian State Medical University, 634050 Tomsk, Russia
- Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Marina S. Valova
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Lina V. Efimova
- Center of Bioscience and Bioengineering, Siberian State Medical University, 634050 Tomsk, Russia
| | | | - Mikhail A. Uimin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia
| | - Artem S. Minin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Ekaterinburg, Russia
| | - Galina L. Levit
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Victor P. Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
| | - Valery N. Charushin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Ekaterinburg, Russia
- Institute of Chemical Engineering, Ural Federal University, 620002 Ekaterinburg, Russia
- Correspondence: (A.M.D.); (V.N.C.)
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13
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Eltyshev AK, Agafonova IA, Minin AS, Pozdina VA, Shevirin VA, Slepukhin PA, Benassi E, Belskaya NP. Photophysics, photochemistry and bioimaging application of 8-azapurine derivatives. Org Biomol Chem 2021; 19:9880-9896. [PMID: 34734607 DOI: 10.1039/d1ob01801a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New 2-aryl-1,2,3-triazolopyrimidines were designed, synthesized, and characterized. Their optical properties were thoroughly studied in the solid phase, in solution and in a biological environment. Density Functional Theory (DFT) based calculations were performed, including the molecular geometry optimization for both the ground state and the first singlet excited state, the prediction of the UV-Vis absorption and fluorescence spectra, the determination of the molecular electrostatic properties and the solvent effect on the optical properties. The emission intensity was revealed to increase in time upon irradiation. Mass spectrometric research, quantum mechanical calculations, and analysis of literature data suggested a possible photo-transformation pathway through the homolytic cleavage of one of the C-Cl bonds upon irradiation with UV light. The structure of the active intermediate was identified by the series of mass spectrometry experiments and via synthesis of putative transformation products. The kinetic parameters measured in different solvents allowed estimating the rate of these photo-transformations. Biological experiments demonstrated that 2-aryl-1,2,3-triazolopyrimidines penetrate cells and selectively accumulate in the cell membrane and the Golgi complex and endoplasmic reticulum. Their unique properties pave the way for new possible applications of fluorescent 8-azapurines in biology and medicine.
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Affiliation(s)
| | - Irina A Agafonova
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.
| | - Artem S Minin
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia. .,M. N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Science, 18 S. Kovalevskaya Str., Yekaterinburg, 620219, Russia
| | - Varvara A Pozdina
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia. .,Institute of Immunology and Physiology, Ural Branch of Russian Academy of Science, 20 S. Kovalevskaya Str., Yekaterinburg, 620049, Russia
| | - Vadim A Shevirin
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia.
| | - Pavel A Slepukhin
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia. .,I. Ya. Postovsky Institute of Organic Synthesis, 20 S. Kovalevskaya Str., Yekaterinburg 620219, Russia
| | - Enrico Benassi
- Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia.
| | - Nataliya P Belskaya
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russia. .,I. Ya. Postovsky Institute of Organic Synthesis, 20 S. Kovalevskaya Str., Yekaterinburg 620219, Russia
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14
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Demin AM, Pershina AG, Minin AS, Brikunova OY, Murzakaev AM, Perekucha NA, Romashchenko AV, Shevelev OB, Uimin MA, Byzov IV, Malkeyeva D, Kiseleva E, Efimova LV, Vtorushin SV, Ogorodova LM, Krasnov VP. Smart Design of a pH-Responsive System Based on pHLIP-Modified Magnetite Nanoparticles for Tumor MRI. ACS Appl Mater Interfaces 2021; 13:36800-36815. [PMID: 34324807 DOI: 10.1021/acsami.1c07748] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Magnetic Fe3O4 nanoparticles (MNPs) are often used to design agents enhancing contrast in magnetic resonance imaging (MRI) that can be considered as one of the efficient methods for cancer diagnostics. At present, increasing the specificity of the MRI contrast agent accumulation in tumor tissues remains an open question and attracts the attention of a wide range of researchers. One of the modern methods for enhancing the efficiency of contrast agents is the use of molecules for tumor acidic microenvironment targeting, for example, pH-low insertion peptide (pHLIP). We designed novel organosilicon MNPs covered with poly(ethylene glycol) (PEG) and covalently modified by pHLIP. To study the specific features of the binding of pHLIP-modified MNPs to cells, we also obtained nanoconjugates with Cy5 fluorescent dye embedded in the SiO2 shell. The nanoconjugates obtained were characterized by transmission electron microscopy (TEM), attenuated total reflection (ATR), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), dynamic light scattering (DLS), UV and fluorescence spectrometry, thermogravimetric analysis (TGA), CHN elemental analyses, and vibrating sample magnetometry. Low cytotoxicity and high specificity of cellular uptake of pHLIP-modified MNPs at pH 6.4 versus 7.4 (up to 23-fold) were demonstrated in vitro. The dynamics of the nanoconjugate accumulation in the 4T1 breast cancer orthotopically grown in BALB/c mice and MDA-MB231 xenografts was evaluated in MRI experiments. Biodistribution and biocompatibility studies of the obtained nanoconjugate showed no pathological change in organs and in the blood biochemical parameters of mice after MNP administration. A high accumulation rate of pHLIP-modified MNPs in tumor compared with PEGylated MNPs after their intravenous administration was demonstrated. Thus, we propose a promising approach to design an MRI agent with the tumor acidic microenvironment targeting ability.
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Affiliation(s)
- Alexander M Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Yekaterinburg, Russia
| | - Alexandra G Pershina
- Siberian State Medical University, 634050 Tomsk, Russia
- Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Artem S Minin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Yekaterinburg, Russia
| | - Olga Ya Brikunova
- Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Aidar M Murzakaev
- Institute of Electrophysics, Russian Academy of Sciences (Ural Branch), 620016 Yekaterinburg, Russia
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Yekaterinburg, Russia
| | | | - Alexander V Romashchenko
- Institute of Cytology and Genetics, Russian Academy of Sciences (Siberian Branch), 630090 Novosibirsk, Russia
| | - Oleg B Shevelev
- Institute of Cytology and Genetics, Russian Academy of Sciences (Siberian Branch), 630090 Novosibirsk, Russia
| | - Mikhail A Uimin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Yekaterinburg, Russia
| | - Iliya V Byzov
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 620990 Yekaterinburg, Russia
| | - Dina Malkeyeva
- Institute of Cytology and Genetics, Russian Academy of Sciences (Siberian Branch), 630090 Novosibirsk, Russia
| | - Elena Kiseleva
- Institute of Cytology and Genetics, Russian Academy of Sciences (Siberian Branch), 630090 Novosibirsk, Russia
| | | | - Sergey V Vtorushin
- Siberian State Medical University, 634050 Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 634050 Tomsk, Russia
| | | | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 620108 Yekaterinburg, Russia
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15
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Pershina AG, Brikunova OY, Demin AM, Abakumov MA, Vaneev AN, Naumenko VA, Erofeev AS, Gorelkin PV, Nizamov TR, Muslimov AR, Timin AS, Malkeyeva D, Kiseleva E, Vtorushin SV, Larionova IV, Gereng EA, Minin AS, Murzakaev AM, Krasnov VP, Majouga AG, Ogorodova LM. Variation in tumor pH affects pH-triggered delivery of peptide-modified magnetic nanoparticles. Nanomedicine 2021; 32:102317. [PMID: 33096245 DOI: 10.1016/j.nano.2020.102317] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/11/2020] [Accepted: 10/07/2020] [Indexed: 01/27/2023]
Abstract
Acidification of the extracellular matrix, an intrinsic characteristic of many solid tumors, is widely exploited for physiologically triggered delivery of contrast agents, drugs, and nanoparticles to tumor. However, pH of tumor microenvironment shows intra- and inter-tumor variation. Herein, we investigate the impact of this variation on pH-triggered delivery of magnetic nanoparticles (MNPs) modified with pH-(low)-insertion peptide (pHLIP). Fluorescent flow cytometry, laser confocal scanning microscopy and transmission electron microscopy data proved that pHLIP-conjugated MNPs interacted with 4T1 cells in two-dimensional culture and in spheroids more effectively at pH 6.4 than at pH 7.2, and entered the cell via clathrin-independent endocytosis. The accumulation efficiency of pHLIP-conjugated MNPs in 4T1 tumors after their intravenous injection, monitored in vivo by magnetic resonance imaging, showed variation. Analysis of the tumor pH profiles recorded with implementation of original nanoprobe pH sensor, revealed obvious correlation between pH measured in the tumor with the amount of accumulated MNPs.
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Affiliation(s)
- Alexandra G Pershina
- Siberian State Medical University, Tomsk, Russia; Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, Tomsk, Russia.
| | | | - Alexander M Demin
- Postovsky Institute of Organic Synthesis UB RAS, Yekaterinburg, Russia
| | - Maxim A Abakumov
- National University of Science and Technology MISiS, Moscow, Russia
| | - Alexander N Vaneev
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - Victor A Naumenko
- National University of Science and Technology MISiS, Moscow, Russia; V. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | - Alexander S Erofeev
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
| | - Peter V Gorelkin
- National University of Science and Technology MISiS, Moscow, Russia; Medical Nanotechnology LLC, Moscow, Russia
| | - Timur R Nizamov
- National University of Science and Technology MISiS, Moscow, Russia
| | - Albert R Muslimov
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Alexander S Timin
- Research School of Chemical and Biomedical Engineering, National Research Tomsk Polytechnic University, Tomsk, Russia; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Dina Malkeyeva
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Elena Kiseleva
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Sergey V Vtorushin
- Siberian State Medical University, Tomsk, Russia; Cancer Research Institute, Tomsk National Research Medical Center RAS, Tomsk, Russia
| | - Irina V Larionova
- Cancer Research Institute, Tomsk National Research Medical Center RAS, Tomsk, Russia; National Research Tomsk State University, Tomsk, Russia
| | | | - Artem S Minin
- Mikheev Institute of Metal Physics UB RAS, Yekaterinburg, Russia
| | - Aidar M Murzakaev
- Institute of Electrophysics UB RAS, Yekaterinburg, Russia; Ural Federal University, Yekaterinburg, Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis UB RAS, Yekaterinburg, Russia; Ural Federal University, Yekaterinburg, Russia
| | - Alexander G Majouga
- National University of Science and Technology MISiS, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia; Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russia
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16
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Kovalev IS, Sadieva LK, Taniya OS, Yurk VM, Minin AS, Santra S, Zyryanov GV, Charushin VN, Chupakhin ON, Tsurkan MV. Computer vision vs. spectrofluorometer-assisted detection of common nitro-explosive components with bola-type PAH-based chemosensors. RSC Adv 2021; 11:25850-25857. [PMID: 35479431 PMCID: PMC9037216 DOI: 10.1039/d1ra03108b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/01/2021] [Indexed: 11/23/2022] Open
Abstract
Computer vision (CV) algorithms are widely utilized in imaging processing for medical and personal electronics applications. In sensorics CV can provide a great potential to quantitate chemosensors' signals. Here we wish to describe a method for the CV-assisted spectrofluorometer-free detection of common nitro-explosive components, e.g. 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT), by using polyaromatic hydrocarbon (PAH, PAH = 1-pyrenyl or 9-anthracenyl) – based bola-type chemosensors. The PAH components of these chemical bolas are able to form stable, bright emissive in a visual wavelength region excimers, which allows their use as extended matrices of the RGB colors after imaging and digital processing. In non-polar solvents, the excimers have poor chemosensing properties, while in aqueous solutions, due to the possible micellar formation, these excimers provide “turn-off” fluorescence detection of DNT and TNT in the sub-nanomolar concentrations. A combination of these PAH-based fluorescent chemosensors with the proposed CV-assisted algorithm offers a fast and convenient approach for on-site, real-time, multi-thread analyte detection without the use of fluorometers. Although we focus on the analysis of nitro-explosives, the presented method is a conceptual work describing a general use of CV for quantitative fluorescence detection of various analytes as a simpler alternative to spectrofluorometer-assisted methods. Simplified computer vision-assisted algorithm for the excimer fluorescence "turn-off" detection of nitro-analytes in aqueous media is described.![]()
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Affiliation(s)
- Igor S. Kovalev
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
| | - Leila K. Sadieva
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
| | - Olga S. Taniya
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
| | - Victoria M. Yurk
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
| | - Artem S. Minin
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- M. N. Mikheev Institute of Metal Physics
- Ural Branch of the Russian Academy of Sciences
| | - Sougata Santra
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
| | - Grigory V. Zyryanov
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
| | - Valery N. Charushin
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
| | - Oleg N. Chupakhin
- Ural Federal University named after the first President of Russia B. N. Yeltsin
- Yekaterinburg
- Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis
- Ural Division of the Russian Academy of Sciences
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17
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Gagarin AA, Suntsova PO, Minin AS, Pozdina VA, Slepukhin PA, Benassi E, Belskaya NP. Two Approaches for the Synthesis of Fused Dihydropyridines via a 1,6-Electrocyclic Reaction: Fluorescent Properties and Prospects for Application. J Org Chem 2020; 85:13837-13852. [PMID: 33107738 DOI: 10.1021/acs.joc.0c01934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of penta-2,4-dienethioamides with acetylenedicarboxylic acid, methyl and ethyl esters, and methyl propiolate were systematically studied, and a number of new 2,3-dihydro-5H-thiazolo[3,2-a]pyridines (DTPs) and 4H,6H-pyrido[2,1-b][1,3]thiazines (PTZs) were prepared. A possible mechanism for a multistep domino transformation is suggested, and the key step is the 1,6-electrocyclic reaction. An additional alternative method for the synthesis of new heterocyclic systems was achieved. Evidence of the electrocyclic mechanism of a key step was collected from the analysis of the spatial structure of the synthesized bicyclic nonaromatic pyridines by X-ray diffraction and quantum chemical calculations, as well as from the thermodynamic quantities. DTPs exhibited yellow fluorescence in solution and yellow to red emissions in the solid state. Biological investigations demonstrated the ability of DTPs to penetrate living and fixed cells and presumably accumulate in lysosomes.
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Affiliation(s)
- Aleksey A Gagarin
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation
| | - Polina O Suntsova
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation
| | - Artem S Minin
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation.,M. N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Science, 18 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
| | - Varvara A Pozdina
- Institute of Immunology and Physiology, Pervomayskaya Str. 106, Ekaterinburg 620049, Russian Federation
| | - Pavel A Slepukhin
- Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Science, 22 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
| | - Enrico Benassi
- Shihezi University, 280 North Fourth Road, Shihezi, Xinjiang 832000, China
| | - Nataliya P Belskaya
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation.,Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Science, 22 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
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18
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Minin AS, Shen NP, Panov ID, Bem SA. [Influence of the blood gas composition and mechanical ventilation parameters of the medical evacuation prognosis of critically ill patients.]. Klin Lab Diagn 2020; 65:84-89. [PMID: 32159304 DOI: 10.18821/0869-2084-2020-65-2-84-89] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 11/20/2019] [Indexed: 11/17/2022]
Abstract
The clinical estimation of the state of patient is one of the basic components of the checking of the state of patient, but more precise and more objective indices today become necessary. The arterial blood gases analysis helps to select the optimum regime of mechanical ventilation. The medical evacuation of the critically ill patients frequently requires the correction of the parameters of respiratory support. The conducted investigations showed that the prognostics of unfavorable outcome within the first three days from the moment of the medical evacuation are hypercapnia, which exists during the process of evacuation in spite of the correction of the parameters of mechanical ventilation, reduction in the saturation of the arterial blood. The forecast of the medical evacuation is located as well in the direct correlation with the manifestation of acidosis, and at the moment of the completion of the transfer of the patient the greatest prognostic significance they possess the low level of the partial tension of oxygen in the artery. The application of a portable express- analyzer of blood gases permits implementation of correction parameters of respiratory support and to increase quality and safety of the medical evacuation of patients.
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Affiliation(s)
- A S Minin
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostics, 625023, Tyumen, Russia.,GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia.,Territorial center of disaster medicine of Tyumen region, 625032, Tyumen, Russia
| | - N P Shen
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostics, 625023, Tyumen, Russia.,GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia
| | - I D Panov
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostics, 625023, Tyumen, Russia.,GBUS TO «Regional clinical hospital №2», 625039, Tyumen, Russia
| | - S A Bem
- GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia.,Territorial center of disaster medicine of Tyumen region, 625032, Tyumen, Russia
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19
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Demin AM, Mekhaev AV, Kandarakov OF, Popenko VI, Leonova OG, Murzakaev AM, Kuznetsov DK, Uimin MA, Minin AS, Shur VY, Belyavsky AV, Krasnov VP. L-Lysine-modified Fe 3O 4 nanoparticles for magnetic cell labeling. Colloids Surf B Biointerfaces 2020; 190:110879. [PMID: 32135495 DOI: 10.1016/j.colsurfb.2020.110879] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 02/07/2020] [Accepted: 02/17/2020] [Indexed: 12/31/2022]
Abstract
The efficiency of magnetic labeling with L-Lys-modified Fe3O4 magnetic nanoparticles (MNPs) and the stability of magnetization of rat adipose-derived mesenchymal stem cells, lineage-negative (Lin(-)) hematopoietic progenitor cells from mouse bone marrow and human leukemia K562 cells were studied. For this purpose, covalent modification of MNPs with 3-aminopropylsilane and N-di-Fmoc-L-lysine followed by removal of N-protecting groups was carried out. Since the degree of hydroxylation of the surface of the starting nanoparticles plays a crucial role in the silanization reaction and the possibility of obtaining stable colloidal solutions. In present work we for the first time performed a comparative qualitative and quantitative evaluation of the number of adsorbed water molecules and hydroxyl groups on the surface of chemically and physically obtained Fe3O4 MNPs using comprehensive FTIR spectroscopy and thermogravimetric analysis. The results obtained can be further used for magnetic labeling of cells in experiments in vitro and in vivo.
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Affiliation(s)
- Alexander M Demin
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 22 S. Kovalevskoy St., Yekaterinburg, 620990, Russia.
| | - Alexander V Mekhaev
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 22 S. Kovalevskoy St., Yekaterinburg, 620990, Russia
| | - Oleg F Kandarakov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova St., Moscow 119991, Russia
| | - Vladimir I Popenko
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova St., Moscow 119991, Russia
| | - Olga G Leonova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova St., Moscow 119991, Russia
| | - Aidar M Murzakaev
- Institute of Electrophysics, Russian Academy of Sciences (Ural Branch), 106 Amudsen St., Yekaterinburg, 620016, Russia; Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenin Ave., Yekaterinburg 620000, Russia
| | - Dmitry K Kuznetsov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenin Ave., Yekaterinburg 620000, Russia
| | - Mikhail A Uimin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 18 S. Kovalevskoy St., Yekaterinburg, 620990, Russia
| | - Artem S Minin
- Mikheev Institute of Metal Physics, Russian Academy of Sciences (Ural Branch), 18 S. Kovalevskoy St., Yekaterinburg, 620990, Russia
| | - Vladimir Ya Shur
- Institute of Natural Sciences and Mathematics, Ural Federal University, 51 Lenin Ave., Yekaterinburg 620000, Russia
| | - Alexander V Belyavsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova St., Moscow 119991, Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), 22 S. Kovalevskoy St., Yekaterinburg, 620990, Russia; Institute of Chemical Engineering, Ural Federal University, 19 Mira St., Yekaterinburg, 620002, Russia
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20
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Eltyshev AK, Minin AS, Smoliuk LT, Benassi E, Belskaya NP. 2-Aryl-2,4-dihydro-5H-[1,2,3]triazolo[4,5-d]pyrimidin-5-ones as a New Platform for the Design and Synthesis of Biosensors and Chemosensors. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Artem S. Minin
- Ural Federal University; 19 Mira Str. 620002 Yekaterinburg Russia
- M. N. Mikheev Institute of Metal Physics; Ural Branch of Russian Academy of Science; 18 S. Kovalevskaya Str. 620108 Yekaterinburg Russia
| | - Leonid T. Smoliuk
- Institute of Immunology and Physiology; Ural Branch of Russian Academy of Science; 20 S. Kovalevskaya Str. 620049 Yekaterinburg Russia
| | - Enrico Benassi
- Lanzhou Institute of Chemical Physics; Chinese Academy of Science; 18 Tianshui Middle Rd 73000020 Lanzhou Shi Gansu Sheng P.R. China
- Department of Chemistry; Hexi University; 734000 Zhangye P. R. China
| | - Nataliya P. Belskaya
- Ural Federal University; 19 Mira Str. 620002 Yekaterinburg Russia
- I. Ya. Postovsky Institute of Organic Synthesis; Ural Branch of Russian Academy of Science; 20 S. Kovalevskaya Str. 620219 Yekaterinburg Russia
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21
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Shen NP, Pishmintseva NP, Pashaev AN, Minin AS, Tsiryateva SB, Vitik AA, Kalinichenko AP. [Optimization of the preanalytical phase of laboratory diagnostics in intensive care and disaster medicine.]. Klin Lab Diagn 2019; 64:459-462. [PMID: 31479599 DOI: 10.18821/0869-2084-2019-64-8-459-462] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 05/31/2019] [Indexed: 11/17/2022]
Abstract
The use of point-of-care diagnostics can prevent a number of complications and leading to improved health outcomes for patients in critical condition. Research have shown that elongation of the preanalytic stage leading of errors of studies and changes the results of a number of laboratory parameters. The article presents the key problems associated with the elongation of the preanalytic stage and possible solutions to address the shortcomings of existing diagnostics.
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Affiliation(s)
- N P Shen
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostic, 625023, Tyumen, Russia.,GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia.,Tyumen cardiology research center, Tomsk national research medical center of the Russian Academy of Science, Tomsk, Russia
| | | | - A N Pashaev
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostic, 625023, Tyumen, Russia
| | - A S Minin
- GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia.,Territorial center of disaster medicine of Tyumen region, 625032,Tyumen, Russia
| | - S B Tsiryateva
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostic, 625023, Tyumen, Russia.,GBUS TO «Regional clinical hospital №1», 625032, Tyumen, Russia
| | - A A Vitik
- FGBOU VO Tyumen State Medical University, Department of obstetrics, gynecology and resuscitation with a course of clinical and laboratory diagnostic, 625023, Tyumen, Russia.,Tyumen cardiology research center, Tomsk national research medical center of the Russian Academy of Science, Tomsk, Russia
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22
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Lugovik KI, Eltyshev AK, Suntsova PO, Smoluk LT, Belousova AV, Ulitko MV, Minin AS, Slepukhin PA, Benassi E, Belskaya NP. Fluorescent boron complexes based on new N,O-chelates as promising candidates for flow cytometry. Org Biomol Chem 2019; 16:5150-5162. [PMID: 29963677 DOI: 10.1039/c8ob00868j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study presents the synthesis and optical properties of a new class of bright green-yellow fluorescent dyes with potential applications in bioimaging. A facile synthetic route via the chelation of aryl(hetaryl)aminoacryloylthiophene scaffolds with a BF2 fragment is presented. The photophysical properties of the dyes are attributed to the nature and position of electron-donating and electron-withdrawing substituents. Upon coordination to a BF2 fragment, characteristic emission was observed, with λem ranging from 503 to 543 nm and quantum yields of 0.14-0.42. Compared with parent aryl(hetaryl)aminoacryloylthiophenes, a significant red shift in absorption (up to 480 nm in solution) and emission (up to 543 nm in solution and 610 nm in the solid state) and high chemical stability and photostability were observed. The electron-accepting character of the substituents on the terminal aromatic ring or replacing this fragment with pyridine or pyrazine moieties resulted in increased quantum yields. To gain insight into the electronic structures and optical properties, quantum mechanical calculations were performed. The results of (TD-)DFT calculations supported the structural and spectroscopic data and showed the features of electronic distribution in the frontier molecular orbitals and active electrophilic and nucleophilic sites in the compounds investigated. Synthesized BF2 complexes are promising dyes for cell imaging and flow cytometry owing to their ready penetration and accumulation in cells.
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Affiliation(s)
- Kseniya I Lugovik
- Ural Federal University, 19 Mira Str., Yekaterinburg, 620002, Russian Federation.
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Demin AM, Pershina AG, Minin AS, Mekhaev AV, Ivanov VV, Lezhava SP, Zakharova AA, Byzov IV, Uimin MA, Krasnov VP, Ogorodova LM. PMIDA-Modified Fe 3O 4 Magnetic Nanoparticles: Synthesis and Application for Liver MRI. Langmuir 2018; 34:3449-3458. [PMID: 29478322 DOI: 10.1021/acs.langmuir.7b04023] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The surface modification of Fe3O4-based magnetic nanoparticles (MNPs) with N-(phosphonomethyl)iminodiacetic acid (PMIDA) was studied, and the possibility of their use as magnetic resonance imaging contrast agents was shown. The effect of the added PMIDA amount, the reaction temperature and time on the degree of immobilization of this reagent on MNPs, and the hydrodynamic characteristics of their aqueous colloidal solutions have been systematically investigated for the first time. It has been shown that the optimum condition for the modification of MNPs is the reaction at 40 °C with an equimolar amount of PMIDA for 3.5 h. The modified MNPs were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric, and CHN elemental analyses. The dependence of the hydrodynamic characteristics of the MNP colloidal solutions on the concentration and pH of the medium was studied by the dynamic light scattering method. On the basis of the obtained data, we can assume that the PMIDA molecules are fixed on the surface of the MNPs as a monomolecular layer. The modified MNPs had good colloidal stability and high magnetic properties. The calculated relaxivities r2 and r1 were 341 and 102 mmol-1 s-1, respectively. The possibility of using colloidal solutions of PMIDA-modified MNPs as a T2 contrast agent for liver studies in vivo (at a dose of 0.6 mg kg-1) was demonstrated for the first time.
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Affiliation(s)
- Alexander M Demin
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch) , 22 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Alexandra G Pershina
- Siberian State Medical University , 2 Moskovsky Trakt , 634050 Tomsk , Russia
- National Research Tomsk Polytechnic University , 30 Lenina Avenue , Tomsk 634050 , Russia
| | - Artem S Minin
- Miheev Institute of Metal Physics of RAS (Ural Branch) , 18 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Alexander V Mekhaev
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch) , 22 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Vladimir V Ivanov
- Siberian State Medical University , 2 Moskovsky Trakt , 634050 Tomsk , Russia
| | - Sofiya P Lezhava
- Siberian State Medical University , 2 Moskovsky Trakt , 634050 Tomsk , Russia
| | - Alexandra A Zakharova
- National Research Tomsk Polytechnic University , 30 Lenina Avenue , Tomsk 634050 , Russia
| | - Iliya V Byzov
- Miheev Institute of Metal Physics of RAS (Ural Branch) , 18 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Mikhail A Uimin
- Miheev Institute of Metal Physics of RAS (Ural Branch) , 18 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch) , 22 S. Kovalevskoy Street , 620990 Yekaterinburg , Russia
| | - Ludmila M Ogorodova
- Siberian State Medical University , 2 Moskovsky Trakt , 634050 Tomsk , Russia
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