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Chiglintseva D, Clarke DJ, Sen'kova A, Heyman T, Miroshnichenko S, Shan F, Vlassov V, Zenkova M, Patutina O, Bichenkova E. Engineering supramolecular dynamics of self-assembly and turnover of oncogenic microRNAs to drive their synergistic destruction in tumor models. Biomaterials 2024; 309:122604. [PMID: 38733658 DOI: 10.1016/j.biomaterials.2024.122604] [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: 12/10/2023] [Revised: 04/11/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Rationally-engineered functional biomaterials offer the opportunity to interface with complex biology in a predictive, precise, yet dynamic way to reprogram their behaviour and correct shortcomings. Success here may lead to a desired therapeutic effect against life-threatening diseases, such as cancer. Here, we engineered "Crab"-like artificial ribonucleases through coupling of peptide and nucleic acid building blocks, capable of operating alongside and synergistically with intracellular enzymes (RNase H and AGO2) for potent destruction of oncogenic microRNAs. "Crab"-like configuration of two catalytic peptides ("pincers") flanking the recognition oligonucleotide was instrumental here in providing increased catalytic turnover, leading to ≈30-fold decrease in miRNA half-life as compared with that for "single-pincer" conjugates. Dynamic modeling of miRNA cleavage illustrated how such design enabled "Crabs" to drive catalytic turnover through simultaneous attacks at different locations of the RNA-DNA heteroduplex, presumably by producing smaller cleavage products and by providing toeholds for competitive displacement by intact miRNA strands. miRNA cleavage at the 5'-site, spreading further into double-stranded region, likely provided a synergy for RNase H1 through demolition of its loading region, thus facilitating enzyme turnover. Such synergy was critical for sustaining persistent disposal of continually-emerging oncogenic miRNAs. A single exposure to the best structural variant (Crab-p-21) prior to transplantation into mice suppressed their malignant properties and reduced primary tumor volume (by 85 %) in MCF-7 murine xenograft models.
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Affiliation(s)
- Daria Chiglintseva
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia
| | - David J Clarke
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Aleksandra Sen'kova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia
| | - Thomas Heyman
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Svetlana Miroshnichenko
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia
| | - Fangzhou Shan
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Valentin Vlassov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia
| | - Marina Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia
| | - Olga Patutina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Lavrentiev Avenue, 630090, Novosibirsk, Russia.
| | - Elena Bichenkova
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
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Miroshnichenko S, Pykhtina M, Kotliarova A, Chepurnov A, Beklemishev A. Engineering a New IFN-ApoA-I Fusion Protein with Low Toxicity and Prolonged Action. Molecules 2023; 28:8014. [PMID: 38138504 PMCID: PMC10745500 DOI: 10.3390/molecules28248014] [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: 10/28/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Recombinant human interferon alpha-2b (rIFN) is widely used in antiviral and anticancer immunotherapy. However, the high efficiency of interferon therapy is accompanied by a number of side effects; this problem requires the design of a new class of interferon molecules with reduced cytotoxicity. In this work, IFN was modified via genetic engineering methods by merging it with the blood plasma protein apolipoprotein A-I in order to reduce acute toxicity and improve the pharmacokinetics of IFN. The chimeric protein was obtained via biosynthesis in the yeast P. pastoris. The yield of ryIFN-ApoA-I protein when cultivated on a shaker in flasks was 30 mg/L; protein purification was carried out using reverse-phase chromatography to a purity of 95-97%. The chimeric protein demonstrated complete preservation of the biological activity of IFN in the model of vesicular stomatitis virus and SARS-CoV-2. In addition, the chimeric form had reduced cytotoxicity towards Vero cells and increased cell viability under viral load conditions compared with commercial IFN-a2b preparations. Analysis of the pharmacokinetic profile of ryIFN-ApoA-I after a single subcutaneous injection in mice showed a 1.8-fold increased half-life of the chimeric protein compared with ryIFN.
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Affiliation(s)
- Svetlana Miroshnichenko
- Federal Research Center of Fundamental and Translational Medicine (FRC FTM), Timakova str., 2, 630117 Novosibirsk, Russia; (S.M.); (A.C.); (A.B.)
| | - Mariya Pykhtina
- Federal Research Center of Fundamental and Translational Medicine (FRC FTM), Timakova str., 2, 630117 Novosibirsk, Russia; (S.M.); (A.C.); (A.B.)
| | - Anastasiia Kotliarova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrentiev Ave., 9, 630090 Novosibirsk, Russia;
| | - Alexander Chepurnov
- Federal Research Center of Fundamental and Translational Medicine (FRC FTM), Timakova str., 2, 630117 Novosibirsk, Russia; (S.M.); (A.C.); (A.B.)
| | - Anatoly Beklemishev
- Federal Research Center of Fundamental and Translational Medicine (FRC FTM), Timakova str., 2, 630117 Novosibirsk, Russia; (S.M.); (A.C.); (A.B.)
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Manakhov A, Permyakova E, Ershov S, Miroshnichenko S, Pykhtina M, Beklemishev A, Kovalskii A, Solovieva A. XPS Modeling of Immobilized Recombinant Angiogenin and Apoliprotein A1 on Biodegradable Nanofibers. Nanomaterials (Basel) 2020; 10:nano10050879. [PMID: 32370165 PMCID: PMC7279301 DOI: 10.3390/nano10050879] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 01/07/2023]
Abstract
The immobilization of viable proteins is an important step in engineering efficient scaffolds for regenerative medicine. For example, angiogenin, a vascular growth factor, can be considered a neurotrophic factor, influencing the neurogenesis, viability, and migration of neurons. Angiogenin shows an exceptional combination of angiogenic, neurotrophic, neuroprotective, antibacterial, and antioxidant activities. Therefore, this protein is a promising molecule that can be immobilized on carriers used for tissue engineering, particularly for diseases that are complicated by neurotrophic and vascular disorders. Another highly important and viable protein is apoliprotein A1. Nevertheless, the immobilization of these proteins onto promising biodegradable nanofibers has not been tested before. In this work, we carefully studied the immobilization of human recombinant angiogenin and apoliprotein A1 onto plasma-coated nanofibers. We developed a new methodology for the quantification of the protein density of these proteins using X-ray photoelectron spectroscopy (XPS) and modeled the XPS data for angiogenin and apoliprotein A1 (Apo-A1). These findings were also confirmed by the analysis of immobilized Apo-A1 using fluorescent microscopy. The presented methodology was validated by the analysis of fibronectin on the surface of plasma-coated poly(ε-caprolactone) (PCL) nanofibers. This methodology can be expanded for other proteins and it should help to quantify the density of proteins on surfaces using routine XPS data treatment.
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Affiliation(s)
- Anton Manakhov
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Correspondence: ; Tel.: +7-915-8494059
| | - Elizaveta Permyakova
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
| | - Sergey Ershov
- Laboratory for the Physics of Advanced Materials (LPM), Department of Physics and Materials Science, University of Luxembourg, L-1511 Luxembourg, Luxembourg;
| | - Svetlana Miroshnichenko
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Mariya Pykhtina
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Anatoly Beklemishev
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
- Institute of Biochemistry, FRC FTM 2 Timakova str., 630117 Novosibirsk, Russia
| | - Andrey Kovalskii
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia;
| | - Anastasiya Solovieva
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (E.P.); (S.M.); (M.P.); (A.B.); (A.S.)
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Miroshnichenko S, Patutina O. Enhanced Inhibition of Tumorigenesis Using Combinations of miRNA-Targeted Therapeutics. Front Pharmacol 2019; 10:488. [PMID: 31156429 PMCID: PMC6531850 DOI: 10.3389/fphar.2019.00488] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/17/2019] [Indexed: 12/18/2022] Open
Abstract
The search for effective strategies to inhibit tumorigenesis remains one of the most relevant scientific challenges. Among the most promising approaches is the direct modulation of the function of short non-coding RNAs, particularly miRNAs. These molecules are propitious targets for anticancer therapy, since they perform key regulatory roles in a variety of signaling cascades related to cell proliferation, apoptosis, migration, and invasion. The development of pathological states is often associated with deregulation of miRNA expression. The present review describes in detail the strategies aimed at modulating miRNA activity that invoke antisense oligonucleotide construction, such as small RNA zippers, miRNases (miRNA-targeted artificial ribonucleases), miRNA sponges, miRNA masks, anti-miRNA oligonucleotides, and synthetic miRNA mimics. The broad impact of developed miRNA-based therapeutics on the various events of tumorigenesis is also discussed. Above all, the focus of this review is to evaluate the results of the combined application of different miRNA-based agents and chemotherapeutic drugs for the inhibition of tumor development. Many studies indicate a considerable increase in the efficacy of anticancer therapy as a result of additive or synergistic effects of simultaneously applied therapies. Different drug combinations, such as a cocktail of antisense oligonucleotides or multipotent miRNA sponges directed at several oncogenic microRNAs belonging to the same/different miRNA families, a mixture of anti-miRNA oligonucleotides and cytostatic drugs, and a combination of synthetic miRNA mimics, have a more complex and profound effect on the various events of tumorigenesis as compared with treatment with a single miRNA-based agent or chemotherapeutic drug. These data provide strong evidence that the simultaneous application of several distinct strategies aimed at suppressing different cellular processes linked to tumorigenesis is a promising approach for cancer therapy.
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Affiliation(s)
- Svetlana Miroshnichenko
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Olga Patutina
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
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Miroshnichenko S, Timofeeva V, Permykova E, Ershov S, Kiryukhantsev-Korneev P, Dvořaková E, Shtansky DV, Zajíčková L, Solovieva A, Manakhov A. Plasma-Coated Polycaprolactone Nanofibers with Covalently Bonded Platelet-Rich Plasma Enhance Adhesion and Growth of Human Fibroblasts. Nanomaterials (Basel) 2019; 9:E637. [PMID: 31010178 PMCID: PMC6523319 DOI: 10.3390/nano9040637] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/11/2019] [Accepted: 04/15/2019] [Indexed: 12/12/2022]
Abstract
Biodegradable nanofibers are extensively employed in different areas of biology and medicine, particularly in tissue engineering. The electrospun polycaprolactone (PCL) nanofibers are attracting growing interest due to their good mechanical properties and a low-cost structure similar to the extracellular matrix. However, the unmodified PCL nanofibers exhibit an inert surface, hindering cell adhesion and negatively affecting their further fate. The employment of PCL nanofibrous scaffolds for wound healing requires a certain modification of the PCL surface. In this work, the morphology of PCL nanofibers is optimized by the careful tuning of electrospinning parameters. It is shown that the modification of the PCL nanofibers with the COOH plasma polymers and the subsequent binding of NH2 groups of protein molecules is a rather simple and technologically accessible procedure allowing the adhesion, early spreading, and growth of human fibroblasts to be boosted. The behavior of fibroblasts on the modified PCL surface was found to be very different when compared to the previously studied cultivation of mesenchymal stem cells on the PCL nanofibrous meshes. It is demonstrated by X-ray photoelectron spectroscopy (XPS) that the freeze-thawed platelet-rich plasma (PRP) immobilization can be performed via covalent and non-covalent bonding and that it does not affect biological activity. The covalently bound components of PRP considerably reduce the fibroblast apoptosis and increase the cell proliferation in comparison to the unmodified PCL nanofibers or the PCL nanofibers with non-covalent bonding of PRP. The reported research findings reveal the potential of PCL matrices for application in tissue engineering, while the plasma modification with COOH groups and their subsequent covalent binding with proteins expand this potential even further. The use of such matrices with covalently immobilized PRP for wound healing leads to prolonged biological activity of the immobilized molecules and protects these biomolecules from the aggressive media of the wound.
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Affiliation(s)
- Svetlana Miroshnichenko
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia.
- Institute of Biochemistry ⁻ subdivision of the FRC FTM, 2 Timakova str., 630117 Novosibirsk, Russia.
| | - Valeriia Timofeeva
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia.
| | - Elizaveta Permykova
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia.
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology "MISiS", Leninsky pr. 4, 119049 Moscow, Russia.
| | - Sergey Ershov
- Physics and Materials Science Research Unit, Laboratory for the Physics of Advanced Materials, University of Luxembourg, 162a, avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg.
| | - Philip Kiryukhantsev-Korneev
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology "MISiS", Leninsky pr. 4, 119049 Moscow, Russia.
| | - Eva Dvořaková
- CEITEC-Central European Institute of Technology-Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
| | - Dmitry V Shtansky
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology "MISiS", Leninsky pr. 4, 119049 Moscow, Russia.
| | - Lenka Zajíčková
- CEITEC-Central European Institute of Technology-Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
| | - Anastasiya Solovieva
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia.
| | - Anton Manakhov
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia.
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Solovieva A, Miroshnichenko S, Kovalskii A, Permyakova E, Popov Z, Dvořáková E, Kiryukhantsev-Korneev P, Obrosov A, Polčak J, Zajíčková L, Shtansky DV, Manakhov A. Immobilization of Platelet-Rich Plasma onto COOH Plasma-Coated PCL Nanofibers Boost Viability and Proliferation of Human Mesenchymal Stem Cells. Polymers (Basel) 2017; 9:E736. [PMID: 30966035 PMCID: PMC6418517 DOI: 10.3390/polym9120736] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/06/2017] [Accepted: 12/18/2017] [Indexed: 12/11/2022] Open
Abstract
The scaffolds made of polycaprolactone (PCL) are actively employed in different areas of biology and medicine, especially in tissue engineering. However, the usage of unmodified PCL is significantly restricted by the hydrophobicity of its surface, due to the fact that its inert surface hinders the adhesion of cells and the cell interactions on PCL surface. In this work, the surface of PCL nanofibers is modified by Ar/CO₂/C₂H₄ plasma depositing active COOH groups in the amount of 0.57 at % that were later used for the immobilization of platelet-rich plasma (PRP). The modification of PCL nanofibers significantly enhances the viability and proliferation (by hundred times) of human mesenchymal stem cells, and decreases apoptotic cell death to a normal level. According to X-ray photoelectron spectroscopy (XPS), after immobilization of PRP, up to 10.7 at % of nitrogen was incorporated into the nanofibers surface confirming the grafting of proteins. Active proliferation and sustaining the cell viability on nanofibers with immobilized PRP led to an average number of cells of 258 ± 12.9 and 364 ± 34.5 for nanofibers with ionic and covalent bonding of PRP, respectively. Hence, our new method for the modification of PCL nanofibers with PRP opens new possibilities for its application in tissue engineering.
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Affiliation(s)
- Anastasiya Solovieva
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (A.S.); (S.M.)
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Svetlana Miroshnichenko
- Scientific Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova str., 630060 Novosibirsk, Russia; (A.S.); (S.M.)
- Research Institute of Biochemistry, 2 Timakova str., 630117 Novosibirsk, Russia
| | - Andrey Kovalskii
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Elizaveta Permyakova
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Zakhar Popov
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Eva Dvořáková
- RG Plasma Technologies, CEITEC–Central European Institute of Technology, Masaryk University, Purkyňova 123, 61200 Brno, Czech Republic; (E.D.); (L.Z.)
| | - Philip Kiryukhantsev-Korneev
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Aleksei Obrosov
- Chair of Physical Metallurgy and Materials Technology, Brandenburg Technical University, 03046 Cottbus, Germany;
| | - Josef Polčak
- CEITEC-Central European Institute of Technology, Brno University of Technology, Technická 3058/10, 61600 Brno, Czech Republic;
- Institute of Physical Engineering, Brno University of Technology, Technicka 2896/2, 616 69 Brno, Czech Republic
| | - Lenka Zajíčková
- RG Plasma Technologies, CEITEC–Central European Institute of Technology, Masaryk University, Purkyňova 123, 61200 Brno, Czech Republic; (E.D.); (L.Z.)
| | - Dmitry V. Shtansky
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
| | - Anton Manakhov
- National University of Science and Technology “MISiS”, Leninsky pr. 4, 119049 Moscow, Russia; (A.K.); (E.P.); (Z.P.); (P.K.-K.), (D.V.S.)
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Affiliation(s)
- Monika Thol
- Lehrstuhl für Thermodynamik, Ruhr-Universität Bochum, Bochum, Germany
| | - Gábor Rutkai
- Lehrstuhl für Thermodynamik und Energietechnik, Universität Paderborn, Paderborn, Germany
| | - Andreas Köster
- Lehrstuhl für Thermodynamik und Energietechnik, Universität Paderborn, Paderborn, Germany
| | | | - Wolfgang Wagner
- Lehrstuhl für Thermodynamik, Ruhr-Universität Bochum, Bochum, Germany
| | - Jadran Vrabec
- Lehrstuhl für Thermodynamik und Energietechnik, Universität Paderborn, Paderborn, Germany
| | - Roland Span
- Lehrstuhl für Thermodynamik, Ruhr-Universität Bochum, Bochum, Germany
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Gordon-Shaag A, Millodot M, Kaiserman I, Sela T, Barnett Itzhaki G, Zerbib Y, Matityahu E, Shkedi S, Miroshnichenko S, Shneor E. Risk factors for keratoconus in Israel: a case-control study. Ophthalmic Physiol Opt 2015; 35:673-81. [DOI: 10.1111/opo.12237] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 07/22/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Ariela Gordon-Shaag
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
| | - Michel Millodot
- School of Optometry and Vision Sciences; Cardiff University; Cardiff Wales
| | | | - Tzahi Sela
- CARE Laser Medical Group; Tel Aviv Israel
| | - Guy Barnett Itzhaki
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
| | - Yaffa Zerbib
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
| | - Efrat Matityahu
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
| | - Shira Shkedi
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
| | | | - Einat Shneor
- Department of Optometry and Vision Science; Hadassah Academic College; Jerusalem Israel
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Aslamova L, Melenevska N, Miroshnichenko N, Kulich I, Miroshnichenko S. 113: The Advantages of Improved Gd DRZ Screens Compared to Gd2SO2 and CsI in Patients Exposure Dose Reduction during the Chest Radiography. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)34134-7] [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] [Indexed: 10/23/2022]
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10
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Kalchenko V, Atamas L, Klimchuk O, Rudzevich V, Rudzevich Y, Boyko V, Drapailo A, Miroshnichenko S. Phosphorylated Calixarenes in Design of Receptors for Metal Cations and Organic Molecules. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500212293] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- V. Kalchenko
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - L. Atamas
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - O. Klimchuk
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - V. Rudzevich
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - Yu. Rudzevich
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - V. Boyko
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - A. Drapailo
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
| | - S. Miroshnichenko
- a Institute of Organic Chemistry , National Academy of Sciences of Ukraine , Kyiv-94 , 02094 , Ukraine
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Smirnov I, Karavan MD, Babain VA, Kvasnitskiy I, Stoyanov E, Miroshnichenko S. Effect of alkyl substituents on extraction properties and solubility of calix[4]arene dialkylphosphine oxides. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2007.95.2.97] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The extraction properties of calix[4]arenes, substituted by CH2P(O)Alk2-group on the upper rim were studied. Extraction of Am and Eu by solutions of these substituted calix[4]arenes in m-nitrobenzotrifluoride, dichloroethane, methylen chloride and p-xylene from nitric acid was performed. It was shown that extraction efficiency of calix[4]arenes from the diluted (C ≤ 0.3 M) nitric acid decreases according to substituent type at phosphorus atom in the following order: butyl ≈ propyl > ethyl > methyl. Such behavior is not typical for corresponding monodentate compounds, so it was preliminary called Anomalous Alkyl Effect (AAE). In order to find out the reasons of this effect the influence of calixarene structure, changing of diluent and the distribution of extractant between water/nitric acid and organic phases were studied. We have stated that CIP-45 (with ethyl substituents at phosphorus atom) transfers into water and nitric acid (C ≤ 0.3 M) from m-nitrobenzotrifluoride solution for more than 80%. CIP-45 also transfers from dichloroethane solution: about 100% transfers into water and less than 10% transfers into 0.01 M HNO3. This compound fully transfers from p-xylene even into 0.3 M HNO3 solution. Less than 5% of CIP-67 (with propyl substituents at phosphorus atom) transfer from organic phase (in any of used diluent) into water/nitric acid. IR-spectroscopy investigations of CIP-45 aqueous solutions displayed that the main reason of the extraction efficiency decreasing of these substituted calix[4]arenes from the diluted nitric acid may be the formation of calixarene hydrate. This hydrate is soluble in water, but already in diluted HNO3 it transforms into water insoluble solvate.
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Peters C, Braekers D, Kroupa J, Kasyan O, Miroshnichenko S, Rudzevich V, Böhmer V, Desreux JF. CMPO-calix[4]arenes and the influence of structural modifications on the Eu(III), Am(III), Cm(III) separation. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2008.1480] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The syntheses of new calix[4]arenes featuring CMPO groups on the wide rim are reported and the extraction of Am(III) and Eu(III) from concentrated HNO3 aqueous phases are discussed with reference to the properties of the symmetric tetra-CMPO derivative
1
. All extraction studies were conducted in the same experimental conditions which allows to directly compare the dependence of the distribution coefficients of various calixarenes on the acid concentration (0.1 M < [HNO3] < 5 M). Calix[4]arene
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becomes a very poor extractant if the length of the aliphatic chain between the amide and phosphine oxide groups of CMPO is increased, if the bridging methylene groups are replaced by sulfur atoms or if the macrocyclic cavity size is increased. By contrast, mixed amide — CMPO calix[4]arenes are nearly as effective than
1
. Moreover, Am(III)/Cm(III) separation coefficients between 1.5 and 3 have been obtained with unsymmetrical calix[4]arenes of type
1
with different aliphatic chains grafted on the narrow rim. Guidelines to anticipate the extraction ability of calix[4]arenes remain elusive because of the intricate solution behavior of these compounds.
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Klimchuk O, Atamas L, Miroshnichenko S, Kalchenko V, Smirnov I, Babain V, Varnek A, Wipff G. New Wide Rim Phosphomethylated Calix[4]arenes in Extraction of Americium and Europium. ACTA ACUST UNITED AC 2004. [DOI: 10.1023/b:jiph.0000031112.16272.17] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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