FLNR Scientific Program 2024

  • Synthesis and Properties of Superheavy Elements, the Structure of Nuclei at the Limits of Nucleon Stability
  • Development of the FLNR Accelerator Complex and Experimental Setups (DRIBs-III)

  • Radiation Physics, Radiochemistry, and Nanotechnology Investigations Using Beams of Accelerated Heavy Ions

  • Synthesis and Properties of Superheavy Elements, the Structure of Nuclei at the Limits of Nucleon Stability
    Theme Leader
    Deputy
      
    S.I.Sidorchuk
    A.V.Karpov
    Scientific leader:   Yu.Ts. Oganessian

    Participating Countries and International Organizations:

    Belarus, Bulgaria, China, Germany, India, Italia, Kazakhstan, Mongolia, Republic of Korea, Romania, Russia, Slovakia, South Africa, Switzerland, Vietnam.

    The problem under study and the main purpose of the research:

    Synthesis of nuclei at stability limits and the investigation of their properties. Investigation of the mechanisms of heavy-ion-induced reactions. Study of the physical and chemical properties of heavy and superheavy elements.

    Projects in the theme:
    Name of the projectProject LeadersProject Code
    1. Investigation of heavy and superheavy
    elements
    M.G. Itkis
    A.V. Karpov
    03-5-1130-1-2024/2028
    2. Light exotic nuclei at the borders of nucleon
    stability
    G. Kaminski
    S.I. Sidorchuk
    Deputies:
    V. Chudoba
    A.S. Fomichev
    03-5-1130-2-2024/2028
    Project:
    Name of the project
    Laboratory (Subdivision)
    Project Leaders
    Responsible from laboratories
    Status
    1. Investigation of heavy and superheavy
    elements
    M.G. Itkis
    A.V. Karpov
    Implementation
    FLNR A.M. Abakumov, F.Sh. Abdullin, D. Abdusamadzoda, N.V. Aksenov, Yu. V. Albin, A.A. Astakhov, A.Yu. Bodrov, A.A. Bogachev, G. A. Bozhikov, N.S. Bublikova, M.L. Chelonokov. V.I. Chepigin, E.V. Chernysheva, S.I. Chuprakov, H.M. Devaraja, S.N. Dmitriev, A.V. Guljaev, A.V. Guljaeva, A.I. Holtzman, D. Ibadullayev, A.V. Isaev, Yu.M. Itkis, I.N. Izosimov, D.E. Katrasev, G.N. Knyazheva, P. Kohout, A. Kohoutova, A.B. Komarov, N.D. Kovrijnykh, E.M. Kozulin, N.I. Kozulina, E.V. Krasnoyarova, L. Krupa, N.Yu. Kurkova, D.A. Kuznetsov, A.A. Kuznetsova, A.Sh. Madumarov, O.N. Malyshev, R. Mukhin, I.V. Muravyov, K.V. Novikov, A.S. Novoselov, A. Opihal, I.V. Pchelintsev, O.V. Petrushkin, E.V. Pishchalnikova, A.V. Podshibyakin, A.N. Polyakov, A.G. Popeko, Yu. A. Popov, L.S. Porobanyuk, V.A. Rachkov, A.M. Rodin, A.V. Rykhlyuk, A.V. Sabelnikov, R.N. Sagaidak, V. Saiko, V.S. Salamatin, S. Sathayan, E.O. Savelieva, B. Saylaubekov, M.V. Shumeiko, E.A. Sokol, D.I. Soloviev, G.Ya. Starodub, V.G. Subbotin, A.I. Svirikhin, M. Tezekbayeva, R.S. Tikhomirov, Yu.S. Tsyganov, V.K. Utenkov, V.I. Vakatov, V. Yu. Vedeneev, A.A. Voinov, I.V. Vorobyov, M.G. Voronyuk, G.K. Vostokin, A.V. Yeremin, S.A. Yuhkimchuk, A.M. Zubareva

    Brief annotation and scientific rationale:

    The Project aims to study the heaviest nuclei and atoms in a comprehensive way: conducting experiments on the synthesis of elements with Z=119 and 120; synthesizing new isotopes of superheavy elements; studying nuclear (spectroscopy) and chemical properties of superheavy elements; investigating nuclear reaction dynamics, including multi-nucleon transfer, leading to the formation of neutron-rich heavy nuclei.

    The project will be implemented mainly at the Superheavy Element Factory of JINR commissioned in 2020. The studies on nuclear reaction dynamics will be carried out at the U-400 accelerator complex and will proceed at the U-400R following the upgrade

    Expected results upon completion of the project:

    1. Synthesis of new superheavy elements 119 and 120.
    2. Study of the chemical properties of SHE.
    3. Synthesis of superheavy nuclei and study of their decay properties.
    4. Investigation of the chemical properties of superheavy elements.
    5. Spectroscopy of the radioactive decay of heavy and superheavy nuclei.
    6. First experiments aimed to measure the masses of superheavy nuclei.
    7. Study of the dynamics of heavy-ion nuclear reactions.

    Expected results in the current year:

    1. Experiments at the DGFRS-2 separator of the SHE Factory aimed to study production cross sections of nuclei in reactions with 48Ca, 50Ti, 54Cr and 58Fe ions and the properties of synthesized nuclei.
    2. Test experiments for synthesizing elements with Z>118..
    3. Experiments aimed at studying the properties of the radioactive decay (α-, β-decay, spontaneous fission properties) of short-lived isotopes with Z>100 (No, Rf, and Sg) produced in reactions with Ne, Ca, Ti, and Cr ions at the SHELS and GRAND (DGFRS-3) separators using the GABRIELA and SFiNX detecting systems.
    4. Experiments for studying the chemical properties of Cn and Fl at the SHE Factory.
    5. Development of methods for manufacturing accelerating targets of stable and radioactive isotopes, stable under long irradiation with high-intensity heavy-ion beams.
    6. Development of techniques for producing metal-organic alloys of titanium and chrome for accelerating their ions using the MIVOC method.
    7. Investigation of mass-energy and angular distributions of fragments formed in multinucleon transfer reactions.
    8. Study of the entrance channel influence on the mass-energy and angular distributions of fragments formed in heavy-ion reactions.
    2. Light exotic nuclei at the borders
    of nuclear stability
    G. Kaminski
    S.I. Sidorchuk
    Deputies: V. Chudoba
    A.S. Fomichev
    Implementation
    FLNR E. Almanbetova, A. Amer, A. Azhibekov, D. Aznabaev, E. Batchuluun, S.G. Belogurov, A.A. Bezbakh, I.V. Butusov, E.M. Gazeeva, M.S. Golovkov, A.V. Gorshkov, V.A. Gorshkov, L.V. Grirogenko, T. Isataev, A. Ismailova, B.R. Khamidullin, A.M. Khirk, S.A. Klygin, A.G. Knyazev, G.A. Kononenko, S.A. Krupko, S.M. Lukyanov, V.A. Maslov, B. Mauey, K.A. May, K. Mendibaev, K.D. Molotorenko, I.A. Muzalevskiy, E.Yu. Nikolskii, Yu.L. Parfenova, Yu.E. Penionzhkevich, S.A. Rimzhanova, Yu.M. Sereda, A.V. Shakhov, P.G. Sharov, N.K. Skobelev, R.S. Slepnev, V.I. Smirnov, Yu.G. Sobolev, S.V. Stepantsov, S.S. Stukalov, G. M. Ter-Akopian, A.N. Vorontsov, R. Wolski, D. Yertaeva

    Brief annotation and scientific rationale:

    The investigations aim to study the structure of light nuclei and nuclear systems near and beyond the borders of nuclear stability using direct nuclear reactions (charge-exchange, one- or two-nucleon transfer), to investigate rare decay channels and the influence of reaction mechanisms on the observed properties of the studied nuclei. Direct reactions employed for studying the structure of isotopes near the borders of nuclear stability allow for more reliable data acquisition and the revision of existing 141 knowledge. The experimental programme will be mainly implemented at the ACCULINNA-1,2 and MAVR setups using the upgraded U-400M accelerator complex of FLNR JINR that allow a wide range of experimental studies of light exotic nuclei using secondary beams in the energy range of 5–50 MeV/nucleon.

    The ACCULINNA-2 separator is equipped with a radio frequency filter for additional purification of secondary beams, a magnetic spectrometer for reaction product separation, a cryogenic target complex of hydrogen and helium isotopes, an array of neutron detectors based on stilbene crystals, and systems for the registration of charged particles.

    Expected results upon completion of the project:

    1. Study of the properties of the drip-line isotopes of light nuclei.
    2. First experiments using the tritium target.
    3. Structure of the drip-line isotopes of light nuclei in (d,p) and (d,n), (t,p), (t,a), (p,d), etc. reactions.
    4. Studies of exotic decays, including 2-n, 4-n, and 2-p emission.

    Expected results of the project in the current year:

    1. Study of nuclei near the boundaries of nucleon stability. Conduct of the first experiment 6,8He+4He. Preparation for and conduct of experiments at the ACCULINNA-2 fragment separator using radioactive beams and the cryogenic targets H2, D2, 3He,4He.
    2. Investigation of the isotopes of oxygen and fluorine at nucleon drip-lines using the missing mass method at the MAVR set-up.
    3. Experiments on measuring the cross sections of individual reaction channels at ACCULINNA-1 employing the MULTI spectrometer.
    Collaboration
    Country or International Organization
    CityInstitute or laboratory
    Belarus
    Bulgaria
    China

    Germany

    India




    Italy
    Kazakhstan
    Mongolia
    Republic of Korea
    Romania
    Russia












    Slovakia
    South Africa

    Switzerland
    Vietnam
    Minsk
    Sofia
    Beijing
    Lanzhou
    Darmstadt
    Heidelberg
    Kolkata
    Manipal
    New Delhi
    Roorkee
    Rupnagar
    Naples
    Almaty
    Ulaanbaatar
    Daejeon
    Bucharest
    Dimitrovgrad
    Dubna
    Moscow



    Moscow, Troitsk
    Sarov
    Sosnovy Bor
    Saint Petersburg



    Bratislava
    Pretoria
    Somerset West
    Villigen
    Hanoi
    Ho Chi Minh City
    IPE NASB
    INRNE BAS
    PKU
    IMP CAS
    GSI
    MPIK
    VECC
    MU
    IUAC
    IIT Roorkee
    IIT Ropar
    Unina
    INP
    CGL
    IBS
    IFIN-HH
    SSC RIAR
    IPTP
    INEOS RAS
    MSU
    NRC KI
    SINP MSU
    INR RAS
    VNIEF
    VNIPIET
    IAI RAS
    Ioffe Institute
    KRI
    SPbSU
    CU
    UNISA
    iThemba LABS
    PSI
    IOP VAST
    HCMUE
  • From 03-5-1130-2017 item of the Topical plan for JINR research and international cooperation 2024.
  • Development of the FLNR Accelerator Complex and Experimental Setups (DRIBs-III)
    Leaders    I.V. Kalagin
    S.I. Sidorchuk
    Deputies   V.A. Semin
    A.V. Yeremin
    Scientific leader:   Yu.Ts. Oganessian

    Participating Countries and International Organizations:

    China, Egypt, Kazakhstan, Mongolia, Russia, Serbia, South Africa, India.

    The problem under study and the main purpose of the research:

    The implementation of the DRIBs-III project that includes the upgrade and development of the FLNR cyclotron complex, expansion of the experimental infrastructure of the Laboratory (construction of new physics set-ups), and the development of accelerator systems. The project aims at improving the operation stability of accelerators, increasing the intensity and improving the quality of ion beams of stable and radioactive nuclides in the energy range from 5 to 100 MeV/nucleon, while at the same time reducing power consumption. The project objective is to significantly improve the efficiency of experiments on the synthesis of superheavy elements and light nuclei at nucleon drip lines and study their properties. Moreover, the programme of experiments with beams of radioactive nuclides is anticipated to be expanded.
    In addition, the construction of the DC-140 cyclotron for applied research and commissioning work have continued. The work is carried out under “The project for the creation of the JINR Innovation Research Center” as part of “The FLNR research complex for materials science” project.
    Within the theme quite as important are the support of physics experiments and the development of existing accelerators and experimental set-ups.

    Projects in the theme:
    Name of the projectProject LeadersProject Code
    1. Construction of the U-400R accelerator complexI.V. Kalagin
    A.G. Popeko
    Deputy:
    V. A. Semin
    A.V. Yeremin
    03-5-1129-1-2024/2028
    2. Light exotic nuclei at the borders of nucleon
    stability
    A.V. Yeremin
    Deputy:
    A.M.Rodin
    03-5-1129-2-2024/2028
    Projects:
    Name of the project
    Laboratory (Subdivision)
    Project Leaders
    Responsible from laboratories
    Status
    1. Construction of the U-400R accelerator complexI.V. Kalagin
    A.G. Popeko

    Deputy:
    V. A. Semin
    A.V. Yeremin
    Manufacture
    FLNR M.B. Barbashev, V. Bass, A.A. Bogachev, A.N. Bykov, O.A. Chernyshev, I. Franko, K.B. Gikal, Yu. M. Itkis, I.A. Ivanenko, G.N. Ivanov, N.Yu. Kazarinov, E. А. Klenov, G.N. Knyazheva, V.A. Kostyrev, E.M. Kozulin, N.I. Kozulina, A.V. Kulikov, K.A. Kulkov, V.I. Lisov, M.I. Makarov, K.V. Novikov, N.F. Osipov, 34 A.A. Ostroukhov, S.V. Pashchenko, I.V. Pchelintsev, E.O. Savelieva, A.A. Sidorov, A.A. Suslov, A.V. Tikhomirov, R.S. Tikhomirov, R.E. Vaganov, V.A. Veryovochkin, I.V. Vorobyov, A.S. Zabanov, S.I. Zagrebayeva, A.O. Zhukova, S.Yu. Zinchenko

    Brief annotation and scientific rationale:

    The goal of the project is the construction of the U-400R accelerator complex for the detailed study of the mechanisms of nuclear reactions with stable heavy-ion beams (fusion–fission, quasifission, multinucleon transfer, etc.), synthesis of new nuclides in these reactions, and decay spectroscopy of nuclei under investigation.
    The project encompasses such tasks as the construction of a new experimental hall, the upgrade of the U-400 cyclotron (U-400R following the modernization), and the construction of new separators and ion-guide systems for beam transport.
    The accelerator complex will be used for the detailed study of the properties of the isotopes of heavy and superheavy elements and in searches for novel methods of synthesizing heavy nuclides. The studies do not imply the use of radioactive target materials in amounts exceeding 105Bq.

    Expected results upon completion of the project:

    1. Upgrade of the U-400 cyclotron (U-400R after the upgrade).
    2. Construction of a new experimental hall of U-400R.
    3. Construction of new experimental set-ups and beam transport channels from U-400R.
    4. Continuation of the construction and work on commissioning the DC-140 cyclotron for applied research



    Expected results of the project in the current year:

    1. Completion of the upgrade and commissioning of the U-400M cyclotron. Enabling first experiments.
    2. Development of the infrastructure of the ACCULINNA-2 fragment separator (RF kicker, tritium target complex).
    3. Implementation of the experimental programme at the U-400 cyclotron.
    4. Construction of the U-400R experimental hall.
    5. Start of the reconstruction of the U-400 (U-400R) cyclotron.
    6. Development of a design of the kinematic separator of multinucleon transfer reaction products.
    7. Development of the design concepts of the SCIF-D set-up for studying nuclear reaction mechanisms.
    8. Construction of the DC-140 cyclotron.
    9. Development of methods for beam diagnostics of stable and radioactive nuclides.
    10. Test launching of the cryogenic gas ion catcher.
    11. Development of the MAVR spectrometer systems.
    2. Development of the experimental setups
    to study the chemical and physical properties
    of superheavy elements
    A.V.Yeremin
    Deputy: A.M. Rodin
    Manufacture
    FLNR E.V. Chernysheva, A. Kohoutova, A.B. Komarov, N.D. Kovrijnykh, L. Krupa, V.D. Kulik, D.A. Kuznetsov, A.S. Novoselov, A. Opihal, O.V. Petrushkin, A.V. Podshibyakin, V.S. Salamatin, V.D. Shubin, M.V. Shumeiko, D.I. Soloviev, V. Yu. Vedeneev, S.A. Yuhkimchuk

    Brief annotation and scientific rationale:

    Nowadays acceleration of high-intensity beams at the DC-280 cyclotron (SHE Factory) provides sufficient statistics in experiments on the synthesis of superheavy nuclei in the vicinity of the island of stability (Z=114, N=184), thereby opening up new avenues for research. Among the new opportunities the SHE Factory offers are studies of the chemical properties of short-lived (T1/2<0.5 s) isotopes of superheavy elements and precise measurements of their masses.
    The project aims to create novel state-of-the-art experimental instruments. Experimental set-ups to be installed at the DC-280 cyclotron will be used for synthesizing and studying the physical and chemical properties of the isotopes of heavy and superheavy elements as well as in studies of nuclear reaction mechanisms, in nuclear spectrometry and mass spectrometry. To attain these goals, we are planning to construct a new superconducting gas-filled GASSOL separator and a multi-reflection time-of-flight mass spectrometer.
    The magnetic gas-filled separator (GASSOL), whose key element is a superconducting solenoid magnet, is intended for studying the physical and chemical properties of superheavy elements, including their short-lived (T1/2< 0.5 с) isotopes, thereby establishing a pathway to elements heavier than Fl. In addition to efficient separation of reaction products, the separator will focus nuclei of interest into a spot not exceeding 1 cm in diameter.
    The specialized high-resolution mass spectrometer is designed for measuring the masses of superheavy elements with Z=104–118 and A=266–294 and their radioactive decay products with an accuracy of <100 keV. Its principle of operation is based on the multi-reflection time-of-flight (MR TOF) technique.

    Expected results upon completion of the project:

    1. Development of methods for producing intensive beams of 48Ca, 50Ti, 54Cr, etc.
    2. Assembly of the solenoid magnet of the superconducting gas-filled GASSOL separator.
    3. Construction of a multi-reflection time-of-flight mass spectrometer.

    Expected results of the project in the current year:

    1. Enabling experiments on the synthesis of superheavy elements and study of their properties at the Superheavy Element Factory.
    2. Construction of the GASSOL separator for radiochemical studies of superheavy elements.
    Collaboration
    Country or International Organization
    CityInstitute or laboratory
    China
    Egypt

    India
    Kazakhstan


    Mongolia
    Russia









    Serbia
    South Africa
    Lanzhou
    Giza
    Shibin El Kom
    New Delhi
    Almaty
    Astana

    Ulaanbaatar
    Moscow


    Moscow, Troitsk
    Nizhny Novgorod
    Novosibirsk
    Sarov
    Snezhinsk
    Saint Petersburg

    Belgrad
    Port Elizabeth
    Somerset West
    Stellenbosch
    Vanderbijlpark
    IMP CAS
    CU
    MU
    IUAC
    INP
    BA INP
    ENU
    NRC NUM
    HTDC
    ITEP
    NNRU “MEPhI”
    INR RAS
    IAP RAS
    BINP SB RAS
    VNIIEF
    RFNC-VNIITF
    IAI RAS
    NIIEFA
    INS “VINCA” NMU iThemba LABS
    SU
    VUT

    From 03-0-1129-2017/2028 item of the Topical plan for JINR research and international cooperation 2024.

    Radiation materials science, nanotechnological and biomedical investigations with heavy-ion beams
    Theme Leaders:   S.N. Dmitriev
    P.Yu. Apel
    Deputy:   V.A. Skuratov


    Participating Countries and International Organizations:

    Armenia, Australia, Belarus, Kazakhstan, Russia, Serbia, South Africa, Vietnam.

    The problem under study and the main purpose of the research:

    Experimental and theoretical studies of radiation tolerance of solids to heavy-ion impact, materials testing, controlled modification of materials properties and the development of new functional structures.

    Projects in the theme:
    Name of the projectProject LeadersProject Code
    1. Radiation resistance of materials to high-intensity beams
    of heavy ions
    V.A.Skuratov
    Deputy:
    R.A. Rymzhanov
    07-5-1131-1-2024/2028
    2. Nanocomposite and functional track etched membranes P.Yu.Apel
    Deputy:
    A.N.Nechaev
    07-5-1131-2-2024/2028
    Projects:
    Name of the project
    Laboratory (Subdivision)
    Project Leaders
    Responsible from laboratories
    Status
    1. Radiation resistance of materials to high-intensity beams
    of heavy ions
    V.A. Skuratov
    Deputy:
    R.A. Rymzhanov
    Manufacture
    FLNR V.A. Altynov, P.Yu. Apel, I.V. Dukach, O.M. Ivanov, N.S. Kirilkin, D.A. Komarova, E.A. Korneeva, N.V. Kurylev, V.A. Kuzmin, N.G. Kuzmina, Le Thi Phuong Thao, N.E. Lizunov, M. Mamatova, A.Yu. Markin, M.N. Mirzaev, A. Mutali, Nguyen Van Tiep, O.L. Orelovich, E.A. Piyadina, R.A. Rymzhanov, V.K. Semina, V.G. Shmarovoz, V.A. Skuratov, A.S. Sokhatsky

    Brief annotation and scientific rationale:

    The aim of the project is to accumulate a database for a better understanding of the fundamental laws of high-intensity ionization in model and structural materials. Knowledge of fundamental mechanisms is of considerable importance for nuclear power engineering, nanotechnology applications and for testing target materials for nuclear physics experiments. As an innovative approach, it is proposed to study the effects of dense ionization on a previously created defect structure, which was formed by exposure to “conventional” radiation (hundreds of keV and units of MeV, ion irradiation), which is the most reliable way to simulate damage produced by fission products.
    The main approach to achieving the goals of the project will be the use of modern structural analysis techniques – high-resolution transmission electron microscopy in combination with molecular dynamics methods for modeling track formation processes. Structural changes will be also investigated using scanning electron microscopy, X-ray diffraction, confocal Raman and luminescence microscopy, and real-time optical spectroscopy under ion irradiation. The radiation resistance of promising reactor materials and target materials for nuclear physics experiments will be investigated by micro- and nanomechanical testing methods.

    Expected results upon completion of the project:

    1. . Advanced understanding of the fundamentals of high-density ionization in solids, based on the studied dependencies of the kinetics of structural changes in the tracks of swift heavy ions in the near-surface areas of nanostructured dielectrics – nanoparticles, interfacial layers, layered structures.
    2. Results of modeling by molecular dynamics methods of lattice relaxation processes and the formation of regions with a modified structure in the near-surface and interphase regions of composite materials exposed to energetic ions – nanoclusters in matrices, layered materials.
    3. Data on the combined effect of dense ionization and helium on the transport properties of fission fragments in protective layers and inert matrices.
    4. Accumulation of a database on the parameters of ion tracks in conventional and nanostructured ceramics promising for nuclear physics applications
    5. Data on the long-term stability of target materials during prolonged irradiation with intense heavy ion beams.

    Expected results of the project in the current year:

    1. Investigation of the microstructure of the interface layers AlN/Al2O3, CeO2/ZrO2: Y, Si/Al2O3 irradiated with high-energy heavy ions by high-resolution transmission electron microscopy.
    2. Measurement by TEM methods of the parameters of helium porosity in nickel- and titanium-based alloys uniformly ion-doped with helium and annealed.
    3. Micromechanical nanoindentation testing of ferrite ODS alloys irradiated with high-energy xenon ions.

    2. Nanocomposite and functional track etched membranes P.Yu.Apel
    Deputy: A.N. Nechaev
    Manufacture
    FLNR











    DLNP
    FLNP
    LRB
    VBLHEP
    N.V. Aksenov, V.A. Altynov, E.V. Andreev, I.V. Blonskaya, O.I. Donnikova, N.A. Drozhzhin, I.V. Dukach,I.N. Fadeikina, E.L. Filatova, M.V. Gustova, O.M. Ivanov, L.I. Kravets, O.V. Kristavchuk, M.A. Kuvaytseva, N.G. Kuzmina, N.E. Lizunov, A.V. Lundup, A.A. Markin, S.V. Mitrofanov, S.A. Mityukhin, L.G. Molokanova, D.A Murashko, I.F. Myatleva, E.B. Nesterova, D.V. Nikolskaya, O.L Orelovich, A.N. Osipov, U.V. Pinaeva, O.A. Polezhaeva, R.K. Ragimova, S.A. Rumyantsev, A. Russou, G.V. Serpionov, I.N. Shamshiddinova, V.V. Shirkova, D.V. Schegolev, I.I. Vinogradov, G.N. Volnukhina
    E.V. Kravchenko, M.P. Zarubin
    Yu. E. Gorshkova, O.Yu. Ivanshina, I. Zinkovskaya
    I.V. Koshlan
    O.V. Belov

    Brief annotation and scientific rationale:

    The project’s goal is to develop nanocomposite and functional track-etched membranes (TMs) for their applications in nanotechnology, biomedicine, sensor technologies, and novel membrane separation processes.
    TMs are an example of the industrial application of ion-track technology. They have a number of significant advantages over conventional membranes due to their precisely determined structure. Their pore size, shape, and density can be varied in a controllable manner so that a membrane with the required transport and retention characteristics can be produced. The modern trends in biology, medicine, environmental research, green energy harvesting, and other areas formulate the demands for membranes with specific novel functionalities. These functionalities can be provided by tuning (setting) the geometry, morphology, and chemical properties of TMs. The present project will focus on the development of various functional track-etched membranes using the following approaches:

    1. Tuning the pore architecture.
    2. Composite structures.
    3. Hybrid structures.
    4. Targeted chemical and biochemical modification.
    5. Selection of bulk material.
    Special attention will be focused on biomedical applications of track-etched membranes. The main result of the project will be the creation of scientific and technical foundations for the development of new membranes with specific functions. 179 The applicability of the developed membranes in practically important membrane separation processes, biomedical procedures and analytical tasks will be investigated.

    Expected results upon completion of the project:

    1. Functionalized TMs obtained from ion-irradiated polymer films using soft photolysis and liquid extraction of degradation products from tracks for the electrodialysis and electro-baromembrane process:
      – determination of ion-selective properties of the membranes;
      – investigation of the possibility of mono- and multivalent-ion separation on nanoporous TMs using the electrodialysis and electro-baromembrane process.
    2. Experimental verification of results on the possibility of manufacturing nanocomposite, functionalized, and hybrid TMs:
      – TMs with asymmetric and modified nanopores for the separation of racemic mixtures;
      – microfiltration TMs with immobilized proteins for the detection of free RNA and DNA and their use in biosensors;
      – functionalized nanoporous membranes made of polyvinylidene fluoride (PVDF) for selective preconcentration of toxic metals and their quantitative determination;
      – TMs functionalized with silver nanoparticles and bioactive substances for the creation of bactericidal and viricidal filtration materials;
      – modified TMs with improved cell adhesion for cell culture systems;
      affinity ultra- and microfiltration TMs for exosome separation;
      – nanocomposite TMs with immobilized silver and gold nanoconjugates and aptamers for the diagnosis of viral diseases using SERS and fluorescence spectroscopy;
      – hybrid TMs with surface polymer nanofiber structures and modified selective complex compounds, ligands and metalorganic frameworks for selective removal of toxic metals from water.
    3. Data on ion-selective, electrokinetic, and osmotic properties of modified nanopores, including asymmetric nanopores, depending on their geometry and functional groups on the surface.

    Expected results of the project in the current year:

    1. Investigation of the patterns of track formation in polyvinylidene fluoride under heavy-ion irradiation and production of nanoporous PVDF TMs. Development of methods for modification of nanoporous PVDF TMs by functional monomers using postradiation graft polymerization
    2. Production of track membranes functionalized by a layer of nanoparticles with a core/shell structure consisting of silver and gold for further use in the analysis of viruses employing aptamers
    3. Study of the membrane distillation process using TMs with nanoscale hydrophobic coatings obtained by electron-beam dispersion of polymers.
    4. Study of the selective properties of the metal-organic frame structure on the surface of TMs in electrolyte solutions.
    5. Development of a method for modifying track membranes with biocompatible conjugates of curcumin and quercetin, as well as the evaluation of their biological effectiveness against RNA and DNA-containing viruses.
    6. Development of a technique for baromembrane separation of the culture medium of human mesenchymal stem cells using TMs.
    Collaboration
    Country or International Organization
    CityInstitute or laboratory
    Armenia


    Australia
    Belarus

    Kazakhstan


    Russia















    Serbia
    South Africa








    Vietnam
    Yerevan


    Canberra, ACT
    Gomel
    Minsk
    Astana


    Chernogolovka
    Dolgoprudny
    Ivanovo
    Krasnodar
    Moscow










    Novosibirsk
    Belgrade
    Bellville
    Durban
    Mthatha
    Port Elizabeth
    Pretoria


    Somerset West
    Stellenbosch
    Hanoi
    ICP NAS RA
    IMB NAS RA
    YSU
    ANU
    GSU
    BSU
    BA INP
    ENU
    NU
    ISSP RAS
    MIPT
    ISUCT
    KSU
    FMBC
    IGIC RAS
    ISPM RAS
    180
    ITEP
    MSU
    PFUR
    MPGU
    RIVS
    RSMU
    TIPS RAS
    ISP SB RAS
    INS “VINCA”
    UWC
    UKZN
    WSU
    NMU
    TUT
    UNISA
    UP
    iThemba LABS
    SU
    IMS VAST

    From 07-5-1131-2017/2024 item of the Topical plan for JINR research and international cooperation 2024.