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Meeting of the Presidium of the NAS of Ukraine on March 25, 2026: innovative approaches for fiber optic communications and new sorption materials

27.03.2026

On March 25, 2026, the next meeting of the Presidium of the National Academy of Sciences of Ukraine took place.

At the beginning, a report was heard from the head of the department of the Mathematical Division of the B.I. Verkin Institute for Low Temperature Physics and Engineering of the NAS of Ukraine, corresponding member of the NAS of Ukraine Dmytro Shepelskyi titled "Modern Mathematical Methods for Fiber Optic Communications." He spoke about the achievements of the Institute's scientists in addressing global challenges related to increasing the capacity and energy efficiency of long-haul fiber optic backbone networks. In particular, an innovative approach was substantiated, based on the application of the spectral theory of periodic operators for the synthesis of signals in the form of finite-zone solutions of nonlinear equations. This allows a radical revision of the architecture of modern communication systems, transforming the natural nonlinearity of the medium from destructive noise into an effective resource for stabilizing information symbols. Thanks to the involvement of the complex mathematical formalism of the Riemann–Hilbert problem, precise analytical accuracy of signal synthesis is ensured, guaranteeing full control over the temporal parameters of symbols in the class of finite-zone functions. This creates a reliable foundation for the development of next-generation backbone networks with an unprecedented level of noise immunity and radically higher spectral efficiency even under complex noise conditions.

The speaker noted that the research was conducted in close cooperation with leading specialists from the Aston Institute of Photonic Technologies (United Kingdom). He emphasized that the obtained fundamental results are of significant importance for the creation of Ukrainian next-generation hardware-software complexes, which will guarantee the state technological independence and a decisive advantage in the field of secure communications for critical purposes.

In the discussion of the report, the following spoke: head of the department of the Institute of Mathematics of the NAS of Ukraine, Doctor of Physical and Mathematical Sciences Vyacheslav Boyko, head of the laboratory of the M.M. Bogolyubov Institute for Theoretical Physics of the NAS of Ukraine, Doctor of Physical and Mathematical Sciences Mykola Iorgov, academic secretary of the Department of Mathematics of the NAS of Ukraine, director of the Institute of Mathematics of the NAS of Ukraine, academician Oleksandr Tymoha, academic secretary of the Department of Physics and Astronomy of the NAS of Ukraine, director of the Institute of Physics of the NAS of Ukraine, academician Mykhailo Bondar, director of the G.V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine, academician Zinovii Nazarchuk, leading research fellow of the M.M. Bogolyubov Institute for Theoretical Physics of the NAS of Ukraine, Doctor of Physical and Mathematical Sciences Yaroslav Zolotariuk.

The participants of the discussion noted the relevance, theoretical value, and promising practical application of the results presented in the report. Emphasis was placed on the priority of developing fundamentally new data transmission paradigms based on the involvement of an intellectually rich mathematical apparatus and the necessity of further implementation of high-level methods that have no direct analogues in modern network protocols.

The second report heard was a scientific presentation by the head of the department of the Institute of Sorption and Endoecology Problems of the NAS of Ukraine, Doctor of Chemical Sciences Iryna Romanova titled "Selective Sorbents for the Removal of Radionuclides, Heavy Metals, and Lithium from Aqueous Solutions." She noted that the ongoing military actions on the territory of Ukraine create additional threats to ecosystems and public health. Therefore, the development of highly selective sorbents for the removal of radionuclides, heavy metals, and other hazardous components from aqueous environments is an important scientific and technical task of strategic significance for environmental safety, restoration of affected territories, and sustainable development of the state.

Thus, scientists of the Institute, together with the State Specialized Enterprise "Chernobyl NPP," conducted pilot tests that demonstrated the high efficiency of using zirconium phosphate applied to silica gel and titanium silicate on basalt fiber in the technological process of cleaning trap waters.

The speaker described a number of other research results with significant applied value. In particular, a method for purifying water contaminated with uranium, cesium, and strontium was developed, based on the use of mechano-chemically and acid-activated montmorillonite (a natural clay material), including modification of its surface with surfactants. A method for synthesizing new sorption materials based on kaolin and domestically produced liquid glass was proposed for the removal of cesium, cadmium, lead, and copper ions from aqueous solutions. Adsorbents for concentrating lithium from a solution obtained by alkaline processing of natural ore—petalite from the Polokhivske deposit—were synthesized based on titanium and manganese oxides. The scientific principles of targeted synthesis of sorbents based on natural clays for successful use in water purification processes were generalized.

The scientist emphasized that the obtained results create a scientific basis for the development of Ukrainian water purification technologies and hazardous waste management. The proposed sorption materials are distinguished by the availability of raw materials, technological simplicity of production, and high efficiency, which opens prospects for their wide implementation in industry, including water treatment systems, nuclear energy, mining sector, and environmental monitoring.

In the discussion of the report, the following spoke: head of the Department of Analytical Chemistry of Taras Shevchenko National University of Kyiv, Doctor of Chemical Sciences Oksana Tananayko, head of the Radiation Monitoring Department of the Institute for Safety Problems of Nuclear Power Plants of the NAS of Ukraine, Candidate of Technical Sciences Valerii Khan, head of the Laboratory of Environmental Chemistry of the Institute of Sorption and Endoecology Problems of the NAS of Ukraine, Doctor of Chemical Sciences Iryna Kovalchuk, member of the Presidium of the NAS of Ukraine, academician of the NAS and NAMN of Ukraine Vitalii Tsymbaliuk, academic secretary of the Department of Chemistry of the NAS of Ukraine, academician of the NAS of Ukraine Petro Stryzhak.

The participants of the discussion supported the presented report and noted the importance of these studies, the high potential for the use of the developed sorbents, and the need for further expansion of work in this direction. Attention was also drawn to the need to coordinate cooperation of the Institute of Sorption and Endoecology Problems of the NAS of Ukraine with scientific institutions of the NAS of Ukraine, higher education institutions, and relevant agencies, as well as enterprises and organizations regarding the implementation of research results of functional sorption materials.

At the end of the meeting, a number of personnel and current issues were considered.

The President of the NAS of Ukraine, academician of the NAS of Ukraine Anatolii Zahorodnii, presented information about the Concept for the Development of the National Academy of Sciences of Ukraine until 2030.

Reports were also heard from the Vice President of the NAS of Ukraine, academician of the NAS of Ukraine Volodymyr Radchenko, and academician of the NAMN of Ukraine Ihor Lurin on the main results of the implementation of the Joint Activity Program of the National Academy of Sciences of Ukraine and the National Academy of Medical Sciences of Ukraine for 2023–2025. In particular, the cooperation of scientists from the two academies was carried out in areas such as: mathematical modeling of gunshot wounds using ballistic simulators; development of methods to improve the effectiveness of diagnosing lesions of various structures of the auditory analyzer; development, manufacture, and testing of orthopedic equipment designs using carbon-carbon composite materials; application of artificial intelligence in diagnosing pathological states of the central nervous system; study of interactions of combat damage elements from firearms with biological tissues; treatment of endocrine diseases using gene therapy; application of high-frequency electric welding technology in surgery; development of methods for providing medical care for traumatic brain injuries using autologous stem cells; development of new composite materials based on silver, gold, and copper nanoparticles with pronounced antiviral effects; creation of new devices and methods of laser action during surgical interventions, etc.

The presented results indicate that the long-term cooperation between the institutions of the NAS of Ukraine and the NAMN of Ukraine is interdisciplinary, combines fundamental and applied research, and is an important foundation for creating innovative technologies in healthcare, medicine, biotechnology, and more.

Thus, considering the importance of continuing cooperation between scientists of the NAS and NAMN of Ukraine, the joint activity program for 2026–2028 was approved.

Photo: Press Service of the NAS of Ukraine