Konopatsky Anton Sergeevich

2012 — present: senior researcher at the Inorganic nanomaterials laboratory

2012-2016: postgraduate studies at NUST MISIS. Thesis topic: “Manufacturing and characterization of superelastic Ti-Nb-Zr-Ta alloys for medical purposes”. The PhD thesis was defended on November 24, 2016.Following the defense, the PhD in engineering degree was awarded. Supervisor: M.R. Filonov.

2012: NUST MISIS specialist’s program, qualification: engineer-physicist with a degree in physical chemistry of processes and materials. Diploma topic: “Formation of an oxide film of titanium-based alloys for medical purposes”. Supervisor: M.R. Filonov.

For the first time, AlSi10Mg/BN composites were obtained through the use of additive technologies (selective laser melting). The structure and mechanical properties of the materials obtained were studied. The justification of special aspects of the morphology of composites using theoretical modeling methods was proposed. Thus, it was shown that thin (up to 300 nm thick) h-BN plates were uniformly distributed in the alloy matrix. The formation of a thin transition layer enriched in nitrogen was observed at the AlSi10Mg/BN section boundary. A detailed analysis of this transition layer allowed to reveal that as a result of interaction of the matrix and h-BN particles, aluminum nitride nanoparticles are formed at the surface of the later. It was shown that AlN nanoparticles densely populate the h-BN surface, which accounts for the formation of the transition layer. The results obtained, in particular, the predominant formation of the secondary phase (AlN) at the AlSi10Mg/BN section boundary may be used for further development of selective laser melting for composite materials production [JALCOM 859 (2021) 157756].

It was shown, both experimentally and theoretically (by DFT method), that the chemical state of the support surface has a significant effect on the content of catalytically active nanoparticles. It was established, both experimentally and through the use of theoretical modeling, that the optimal content of boron oxide on the surface of h-BN formed during the preliminary heat treatment may significantly increase the concentration of Ag nanoparticles, which leads to an increase in the catalytic activity of the material in the oxidation of methanol reaction. Pursuant to the DFt theory, a mechanism for the oxidation of methanol on Ag/BN structures was proposed, and energy barriers of its various stages were calculated [Catal. Sci. Technol. 8 (2018) 1652-1662].

For the first time, the catalytic activity of the Ag/BN system in the oxidation reaction of carbon monoxide was demonstrated. The effect of the synthesis environment on the tendency of nanoparticles of noble metals and carriers to agglomeration was studied. The formation of intermediate structures based on polymer molecules and silver nanoparticles was shown. Preliminary studies of activation schemes for heterogeneous catalysts based on defect-free h-BN nanostructures showed a greater effect of the oxidative activation stage (exposure in an oxygen-enriched environment) as compared to the reduction (exposure in a hydrogen-enriched environment) on the catalytic activity of the material in the CO oxidation reaction [J. Catal. 368 (2018) 217-227].

Nanostructured materials (Ni0.2Cu0.8)/BN were obtained, and their high catalytic activity in the reaction of methanol reforming and oxidation of carbon monoxide was demonstrated. Compared to other types of nanocatalysts, methanol reforming is accompanied by the formation of a small amount of carbon dioxide, while carbon monoxide was not observed at all. Based on the deliverables of the work, an article currently under review with the [Chemical Engineering Journal] was drawn up.

Resulting from the comprehensive study of the evolution of the structure of heterogeneous Ag/BN structures, it was found that the formation of silver nanoparticles over h-BN surfaces is accompanied by intermediate stages of the formation of nanocomposite polymer structures with Ag particles, as well as silver acetate. It was shown that these structures may be effectively used to control the content and size distribution of silver nanoparticles on the h-BN surface during low-temperature (up to 150°C) annealing. Varying the duration and temperature of annealing may also be used to control their morphology. It was also shown that the intermediate layer between the metal particle and the substrate plays an important role in increasing the catalytic properties of the Ag / BN system in the CO oxidation reaction. So, with the same content and size distribution of silver nanoparticles, enhanced properties are demonstrated by heterogeneous Ag / BN nanostructures containing a thin Ag-O-B transition layer [Catal. Sci. Technol. 9 (2019) 6460-6470].

It was established that an increase in the content of silver nanoparticles on the surface of h-BN by their formation by the polyol method is nonlinear. Thus, for a specific ratio of system components, there is an optimal synthesis time that allows the formation of the largest amount of silver nanoparticles several nm in size on the h-BN surface. Exceeding this time leads to an increase in the concentration of silver on the h-BN surface due to the growth of particles and does not contribute to an increase in the catalytic activity of the material. For the first time, the catalytic stability of the Ag/BN system in the CO oxidation reaction was studied. It was found that the high catalytic activity of the material persists for a long time, and its decline is associated with the partial sintering of the smallest silver nanoparticles [ChemCatChem, 12 (2020) 1-8, DOI: 10.1002 / cctc.201902257].

Biodegradable polycaprolactone nanofibers were obtained by electrospinning, and their surface functionalization was carried out in order to improve their biocompatibility and bioactivity. Two approaches were used to modify the surface: (i) a COOH-containing polymer was applied to the surface of nanofibers using plasma copolymerization at atmospheric pressure of CO2 and C2H4, and (ii) PCL nanofibers were coated with a multifunctional bioactive nanostructured TiCaPCON film during magnetron sputtering of a TiC-CaO-Ti3POx target. TiCaPCON coated nanofibers showed improved adhesion and proliferation of MC3T3-E1 cells and promoted the formation of a Ca-based mineralized layer when immersed in a solution that mimics the internal environment of the body. Thus, coated nanofibers may be considered as a promising material for bone tissue regeneration. Plasma polymer nanofibers demonstrared an improved adhesion and proliferation of IAR-2 cells, indicating their high potential for skin repair and as wound dressings [Nanomaterials 9 (2019) 1769].

The effect of Ta on the microstructure and corrosion fatigue of the Ti-18Nb-14Zr metastable biomedical alloy was studied for the first time. The results of electrochemical and mechanical tests showed that the fatigue life of the alloy with the addition of Ta was significantly longer than that of the Ti-18Zr-14Nb alloy. The increase in resistance to fatigue failure is accounted for by the tendency of the alloy alloyed with Ta to passivation [J. Alloys Comp. 748 (2018) 51-56].

New shape memory alloys Ti-18Zr-14Nb, Ti-18Zr-13Nb-1Ta, Ti-18Zr-12Nb-2Ta and Ti-18Zr-11Nb-3Ta (at.%) were manufactured by vacuum arc remelting, and subsequent thermomechanical treatment (TMT) was applied. Alloys with a subgranular structure with the structural element size of 200–300 nm and superelasticity at room temperature were obtained. During cyclic mechanical tests the following tendency was discovered for all alloys: during the first 10–15 cycles of loading-unloading, the mechanisms of plastic deformation and stabilization of martensite under the action of stresses predominate, and after that the mechanisms of β⇄α" transformation become dominant and the deformation mechanism passes from elastoplastic to superelastic [Mater. Sci. Eng. A 702 (2017) 301-311].

A method for the surface functionalization of BN nanoparticles with targeted legends for their targeted delivery to tumor cells was developed [J. Phys. Chem. C 121 (2017) 28096–28105]. Phys.

Scopus Hirsch Index — 8.

Number of articles on Scopus —31.

SPIN RSCI: 4788- 1914.

ORCID: 0000- 0002- 2597- 6611

ResearcherID: A-2573-2014.

Scopus AuthorID: 55601416300.

Supervisor

• “Development of heterogeneous nanostructured materials Fe (Pt, Ag) / BN for carbon dioxide processing”. Grant of the Russian Science Foundation in the context of the 2020 competition “Conducting research by scientific groups under the guidance of young scientists” of the presidential program of research projects implemented by leading scientists, including young scientists. Agreement 20-79- 10286 dated July 20, 2020.
• The project term is 2020-2023. The amount of financing is 15 million rubles.
• “New hybrid nanomaterials for heterogeneous catalysis”. Grant from NUST MISIS to support scientific research in scientific areas of strategic academic units (StrAU) conducted under the guidance of leading scientists, and the development of international collaborations.
• The project was completed in 2020. The amount of financing is 7 million rubles. Results: new highly efficient hybrid nanomaterials for heterogeneous catalysis were obtained.
• A.S. Konopatsky “Development of chemical compositions of superelastic titanium alloys, as well as study of the features of the effect of thermomechanical treatment on their structure”. Grant 18-33- 00418 mol_a of the Russian Foundation for Basic Research. CITIS AAAA-A18-118101690079-5.
• The project term is 2018-2019. The amount of financing is 1 million rubles.Results: new fully biocompatible titanium-based alloys for bone replacement were obtained.
• A.S. Konopatsky “Development and research of superelastic biocompatible titanium alloys for medical use”. The project as part of the implementation of an event for the development of the university system of grant support for young teaching staff of the NUST MISIS Competitiveness Enhancement Program among the world’s leading research and educational centers (roadmap) for 2013-2020.
• The year of project implementation is 2015. The amount of financing is 0.36 million rubles.Results: alloys with increased reversible deformation resource were developed.
• A.S. Konopatsky “Obtaining and quality assessment of superelastic biocompatible alloys based on titanium and niobium”. The project as part of the implementation of an event for the development of the university system of grant support for young teaching staff of the NUST MISIS Competitiveness Enhancement Program among the world’s leading research and educational centers (roadmap) for 2013-2020.
• The year of project implementation is 2014. The amount of financing is 0.36 million rubles.Results: alloys with the optimal composition of titanium and niobium for medical purposes were developed.

Investigator

• Grant of the Russian Science Foundation “Research by scientific groups under the guidance of young scientists”, “Control of thermomechanical conditions for the implementation of shape memory effects in alloys based on the systems Ti-Ni, TiZr and Fe-Mn” No. 19-79- 10270 (07/01/2019-07/01/2021, 15 million rubles).
• Subsidies for state support to NUST MISIS in order to increase its competitiveness among the world’s leading research and educational centers K2 “Two-dimensional carbides and nitrides of transition metals (MXenes) and heterogeneous nanostructures based on BN to improve the quality of life” (01/01/2018-12/31/.2020, 12 million rubles).
• Federal target program “Research and development in priority areas of development of the scientific and technological complex of Russia for 2014 — 2020”, “Development of technologies for creating intraosseous implants with a biopolymer coating based on superelastic titanium alloys” (09/26/2017-06/30/2020, 60 million rubles).
• Results: alloys for intraosseous implants with optimal chemical and phase compositions were developed.
• State assignment “Development of technological foundations for obtaining bulk nanostructured semi-finished products of Ti-Ni alloys with enhanced shape memory properties by methods of quasi-continuous severe deformation” (01/01/2017-12/31/2019, 30 million rubles).
• Results: technological foundations for the creation of bulk semi-finished products with the most perfect the shape memory effect were developed.
• Russian Foundation for Basic Research “Investigation of the features of transformations under stress and their implementation in the functional properties of nanostructured shape memory alloys based on Ti-Ni and Ti-Zr for medical structures” (01/01/2018-12/31/2020, 2.1 million rubles).
• Results: dependences of phase transformations in titanium-based shape memory alloys on external stresses were revealed.

• A. Konopatsky, S. Dubinskiy, Y. Zhukova, V. Sheremetyev, V. Brailovski, S. Prokoshkin, M. Filonov Ternary Ti-Zr-Nb and quaternary Ti-Zr-Nb-Ta shape memory alloys for biomedical applications: Structural features and cyclic mechanical properties Materials Science and Engineering A 702 (2017) 301-311 DOI: 10.1016/j.msea.2017.07.046
• S. Prokoshkin, V. Brailovski, S. Dubinskiy, Y. Zhukova, V. Sheremetyev, A. Konopatsky & K. Inaekyan Manufacturing, Structure Control, and Functional Testing of Ti—Nb-Based SMA for Medical Application Shape Memory and Superelasticity, (2016), 1-15 DOI 10.1007/s40830-016-0059-y
• Elizaveta S. Permyakova, Irina V. Sukhorukova, Liubov Yu. Antipina, Anton S. Konopatsky, Andrey M. Kovalskii, Andrei T. Matveev, Oleg I. Lebedev, Dmitri V. Golberg, Anton M. Manakhov and Dmitry V. Shtansky Synthesis and Characterization of Folate Conjugated Boron Nitride Nanocarriers for Targeted Drug Delivery J. Phys. Chem. C, 2017, 121 (50), pp 28096–28105 DOI: 10.1021/acs.jpcc.7b10841
• Anton Konopatsky, Konstantin L. Firestein, Denis V. Leybo, Zakhar I Popov, Konstantin Larionov, Alexander E. Steinman, Andrey M. Kovalskii, Andrei Matveev, Anton Manakhov, Pavel Borisovich Sorokin, Dmitri Golberg and Dmitry Shtansky BN Nanoparticle/Ag Hybrids with Enhanced Catalytic Activity: Theory and Experiments Catal. Sci. Technol., 8 (2018) 1652-1662 doi:10.1039/C7CY02207G
• Prokoshkin S. Dubinskiy S. Brailovski V. Korotitskiy A. Konopatsky A. Sheremetyev V. Blinova E. Nanostructures and stress-induced phase transformation mechanism in titanium nickelide annealed after moderate cold deformation Materials Letters Volume 192, 1 April 2017, Pages 111-114 doi.org/10.1016/j.matlet.2016.12.046
• Elizaveta Permyakova, Philip Kiryukhantsev-Korneev, Kristina Gudz, Anton Konopatsky, Josef Polčak, Irina Zhitnyak, Natalya Gloushankova, Dmitry Shtansky, Anton Manakhov Comparison of Different Approaches to Surface Functionalization of Biodegradable Polycaprolactone Scaffolds Nanomaterials (Basel). 2019, 12 doi: 10.3390/nano9121769
• Y.S. Zhukova, Y.A. Pustov, A.S. Konopatsky, S.M. Dubinskiy, M.R. Filonov, V. Brailovski Corrosion fatigue and electrochemical behavior of superelastic Ti-Nb-Ta alloy for medical implants under cyclic load conditions Materials Today: Proceedings 2S (2015) S991 — S994. DOI: 10.1016/j.matpr.2015.07.448
• Yu.S. Zhukova, Yu.A. Pustov, A.S. Konopatsky, M.R. Filonov Characterization of electrochemical behavior and surface oxide films on superelastic biomedical Ti-Nb-Ta alloy in simulated physiological solutions Journal of Alloys and Compounds 586 (2014) S535—S538. DOI: 10.1016/j.jallcom.2013.01.151.
• Anton S. Konopatsky, Denis V. Leybo, Konstantin L. Firestein, Zakhar I. Popov, Andrey V. Bondarev, Anton M. Manakhov, Elizaveta S. Permyakova, Dmitry V. Shtansky, Dmitri V. Golberg Synthetic routes, structure and catalytic activity of Ag/BN nanoparticle hybrids toward CO oxidation reaction Journal of Catalysis, Volume 368, December 2018, Pages 217-227 doi.org/10.1016/j.jcat.2018.10.016
• A. S. Konopatskii, Yu. S. Zhukova, S. M. Dubinskii, A. A. Korobkova, M. R. Filonov, and S. D. Prokoshkin Microstructure Of Superplastic Alloys Based On Ti—Nb For Medical Purposes Metallurgist, Volume 60, Issue 1–2, (2016) pp 223–228 (Russian Original Nos. 1–2, January—February, 2016) DOI 10.1007/s11015-016-0277-8

• Invention patent No. 2716928. Titanium-based alloy and method of its processing to create intraosseous implants with increased biomechanical compatibility with bone tissue. Priority of invention — December 27, 2019; registration date — March 17, 2020; valid until December 27, 2039; A.S. Konopatsky, S.M. Dubinsky, V.A. Sheremetyev, S.D. Prokoshkin, V.I. Brailovsky.

Know how

• S.D. Prokoshkin, V.A. Sheremetyev, S.M. Dubinsky, A.S. Konopatsky, Yu.S. Zhukova “Method of thermomechanical treatment of shape memory alloy Ti-18Zr-14Nb (at.%) to form a nanocrystalline structure and increase strength”, No. 07-733-2020б Intellectual Property Division, dated 12/25/2020.
• A.T. Matveev, D.V. Shtansky, A.M. Kovalsky, A.S. Konopatsky, E.S. Permyakova, Korte Shakti Tanya, I.N. Volkov “Method of obtaining nanocrystalline hexagonal boron nitride”, No. 13-457- 2019, Intellectual Property Division, dated 12/09/2019.
• D.V. Shtansky, A.T. Matveev, A.M. Kovalsky, A.S. Konopatsky, H.U. Yusupov, Korte Shakti Tanya “Method of producing heterogeneous BN / Al nanoparticles in a microwave plasma installation and a device for its implementation”, No. 11-457- 2018, Intellectual Property Division, dated 10/19/2018.
• D.V. Shtansky, A.T. Matveev, A.M. Kovalsky, A.E. Steinman, A.S. Konopatsky “Method of producing nanohybrid catalysts BN / Ag”, No. 14-457- 2017, Intellectual Property Division, dated 11/15/2017.
• D.V. Shtansky, A.T. Matveev, A.M. Kovalsky, A.E. Steinman, A.S. Konopatsky “Method of producing a composite material based on Al reinforced with BN particles”, No. 15-457- 2017, Intellectual Property Division, dated 11/15/2017.
• S.D. Prokoshkin, S.M. Dubinsky, Yu.S. Zhukova, V.A. Sheremetyev, A.S. Konopatsky “Method of processing shape memory alloy Ti-18Zr-15Nb (at.%) to obtain the best functional fatigue life”, No. 17-676- 2017, Intellectual Property Division, dated 11/15/2017.
• S.D. Prokoshkin, M.I. Petrzhik, A.V. Korotitsky, S.M. Dubinsky, Yu.S. Zhukova, V.A. Sheremetyev, A.S. Konopatsky, A.M. Kazakbiev, A.A. Korobkova “Method of determining the crystallographic resource of reversible deformation of shape memory alloys based on Ti-Nb in the austenite state at room temperature”, No. 78-676- 2016, Intellectual Property Division, dated 12/29/2016.
• S.D. Prokoshkin, V. Brailovsky, M.R. Filonov, M.I. Petrzhik, S.M. Dubinsky, Yu.S. Zhukov, K.E. Inaekyan, A.S. Konopatsky, V.A. Sheremetyev “Method of assessing the crystallographic resource of reversible deformation in alloys based on Ti-Zr-Nb”, No. 61-676- 2015, Intellectual Property Division, dated 12/14/2015.
• S.D. Prokoshkin, V. Brailovsky, M.R. Filonov, M.I. Petrzhik, S.M. Dubinsky, Yu.S. Zhukov, K.E. Inaekyan, A.S. Konopatsky, V.A. Sheremetyev “Thermomechanical treatment method for realizing a perfect superelastic behavior of shape memory alloys of the Ti-Zr-Nb system with increased reversible deformation resource”, No. 55-017- 2014, Intellectual Property Division, dated 12/15/2014.

Academic adviser:

• graduation thesis of K.A. Samodumkina “Formation of silver nanoparticles on the surface of superelastic titanium alloys”, 2019;
• graduation thesis of E.M. Barashenkova “Synthesis, structural state and electrochemical behavior of superelastic alloys of the Ti-Zr-Nb system”, 2018;
• graduation thesis of A.A. Pestova “Obtaining new superelastic alloys of the Ti-Zr-Nb system for medical purposes”, 2015, and
• graduation thesis of N.E. Elagina “Obtaining superelastic Ti-Nb-Zr alloys for medical purposes with a high resource of reversible deformation”, 2015.