The list of national projects SAS
Institute of Experimental Physics
-
Analýza obrazových sekvencií metódami hlbokého učenia vo vybraných biofyzikálnych experimentoch
Anomalous scaling in turbulent systems with symmetry breaking
Anomálne škálovanie v turbulentných systémoch s narušenou symetriou
| Duration: |
1.1.2021 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
RNDr. Jurčišin Marián PhD. |
| Annotation: | Turbulent behavior belongs among basic properties of various macroscopic physical, chemical, biological,
social-economical, financial, as well as environmental systems. Typical well-known examples of turbulent motions
are various atmospheric phenomena (tornadoes, hurricanes, cyclones, etc.), turbulent streams in rivers and
oceans, and turbulent motions in electrically conductive environments (motion of the outer earth core, solar wind,
etc.) . The main task of theoretical investigations of turbulent systems is, first of all, the understanding of
fundamental physical properties of turbulent flows that are common for all turbulent systems and which could
potentially be applied in technical praxis in the future. In this respect, the main aim of the project is the
investigation of the influence of breaking of various symmetries of developed turbulent environments on the
properties of the anomalous scaling of correlation functions of fluctuating fields as well as on universal
characteristics of turbulent systems. |
-
Dekoherencia v mechanických rezonátoroch pri nízkych teplotách
-
Diskrétna gravitácia, kvantové javy a ich aplikácia na rôzne druhy fyzikálnej reality
-
Elektrokatalyzátory pre efektívnu produkciu vodíka pre budúce elektrolyzéry a palivové články
| Duration: |
1.7.2021 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
RNDr. Baťková Marianna PhD. |
| Annotation: | The development of activities in the field of hydrogen technologies was also supported by the European
Commission in the strategic document "Hydrogen Strategy for a Climate Neutral Europe". Today, Slovakia has
suggested own national hydrogen strategy. Already in 2015, the National Hydrogen Association has founded to
support research, implementation and use of hydrogen technologies. The Hydrogen Technology Center is being
established in Košice with the main "Power-to-Gas" concept using renewable power energy sources with no
negative impact on human life and without dependence on fossil fuels. A significant source of hydrogen is water
and the electrolysis of water is the most promising technology for hydrogen production. However, before it can be
recognized as an economically significant resource for large scale application with an exceptional energy potential,
the simple, efficient, and secure methods of hydrogen retrieval have to be developed. For the time being, the most
efficient electrocatalysts in terms of overpotential for hydrogen evolution reaction (HER) are noble metals.
Unfortunately the high cost and scarcity of noble metals motivate the scientists to find the rival low-cost alternatives. Intrinsic structures of TMP meet the criteria of outstanding electrocatalysts that could further improve
their HER performance in membrane electrode assembly. Excellent dispersity of electrocatalysts allows full use of
active sites on catalysts to participate in electrode reaction to improve the electrocatalytic efficiency. Therefore, the
main challenge in this project is to reduce the production cost of HER and at the same time to maintain the high
efficiency of polymer electrode water electrolysis. Substantial aim of the project will be devoted to improve the PEM
water electrolysis components mainly electrode materials based on modified carbon fibers electrocatalysts result in
the technology which should be more approached to commercial markets. |
Functionalized magnetic nanoparticles for MRI imaging of drug distribution in the lungs in experimental acute respiratory distress syndrome (ARDS)
Funkcionalizované magnetické nanočastice pre MRI zobrazovanie distribúcie liečiva v pľúcach pri experimentálnom syndróme akútnej respiračnej tiesne (ARDS)
| Duration: |
1.1.2023 - 31.12.2026 |
| Program: |
VEGA |
| Project leader: |
Ing. Koneracká Martina CSc. |
| Annotation: | The current project is focused on the synthesis and functionalization of magnetic nanoparticles (MNPs) for MRI
imaging of the drug N-acetylcysteine distribution in the lungs in experimental acute respiratory distress syndrome
(ARDS). The first step will be to prepare a conjugate consisting of MNPs modified with functional groups suitable
for drug conjugation. MNPs functionalization and drug conjugation will be optimized and studied by
physicochemical methods such as UV/Vis and IR spectroscopy, microscopy, calorimetry or magnetic
measurements. In the next phase, the conjugate will be analyzed by MRI and compared with the properties of
commercially available MRI contrast agents. In the third step, the relevant ARDS model will be created, and the
conjugate will be applied to the lungs. Finally, the conjugate will be imaged using optimized MRI techniques to
study the drug distribution in the lungs in ARDS. The output items of the project have a direct application potential
for clinical practice. |
Functional magnetic materials with perovskite structure based on rare earth and transition metal oxides
Funkčné magnetické materiály s perovskitovou štruktúrou na báze oxidov vzácnych zemín a prechodných kovov
| Duration: |
1.1.2022 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
RNDr. Mihalik Marián CSc. |
| Annotation: | Part of our project deals with multiferroic materials and another with functionality of materials with perovskite
structure in respect to hydrogen storage or application of colloid with nanoparticles for hyperthermia. The project
is targeted to substitutional solid solutions and construction of magnetic phase diagrams in RTO3 system (R = Nd, Pr, Sm, Tb, Dy and T = Ti, Cr, Mn, Fe). Oxygen content affects physical properties of this system. The defect structure can be used for hydrogen storage. Experimental techniques like crystal growth of single crystals, synthesis of magnetic nanoparticles and study of various physical properties are complemented by theoretical approach using Density functional theory. Our project serves as starting point for re-examining the effect of oxygen content on physical properties of RMnO3 multiferroic compounds. The concept of storing hydrogen in the vacancies in these compounds is novel as well smart hyperthermia based on colloid containing magnetic nanoparticles of manganites. |
Functional nano- and microwires with outstanding properties
Funkčné nano- a mikrodrôty s význačnými vlastnosťami.
| Duration: |
1.1.2023 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
RNDr. Kováč Jozef CSc. |
| Annotation: | The project is focused on the development and characterization of functional nano and microwires, which are characterized by distinctive features physical properties in the form of shape memory phenomenon, magnetocaloric phenomenon, magnetic bistability, etc. These properties can be used with advantages in the construction of miniature sensors and actuators for temperature, elongation
etc. Scalable methods will be used to produce these materials (electrodeposition, Taylor Ulitovski method), which enable the preparation of a large number of samples and thus an easy transition to applications. The goal is to examine the most important parameters determining the functional properties, which enables the following phenomena
modify from the point of view of working scope and amplitude. The shape of the wire brings shape to the mentioned phenomena anisotropy, which can highlight the functional properties in the selected direction and facilitates the subsequent application of the listed materials. |
Interdisciplinary applications of cosmic rays observation and research in the laboratory of Institute of Experimental Physics of SAS at the Lomnicky stit observatory
Interdisciplinárne aplikácie pozorovania a výskumu kozmického žiarenia na pracovisku ÚEF SAV na Lomnickom štíte
| Duration: |
1.1.2022 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
Ing. Kubančák Ján PhD. |
| Annotation: | The goal of the project is to create conditions for the further development of interdisciplinary applications of cosmic radiation research at the ÚEF SAS workplace on Lomnické štít, mainly through:
a) maintaining continuity in the field of cosmic radiation observation,
b) innovation and workplace development a
c) intensive scientific cooperation and promotion of the workplace.
The project will focus on the analysis and evaluation of data recorded by the neutron monitor and the SEVAN device during the 24th and the first third of the 25th solar cycle. Scientific work will be intensified in the field of cooperation in the field of radiation protection against cosmic rays and in the field of development and testing of detectors in mixed radiation fields occurring at high-altitude observatories.
One of the results of the project will be a retrospective analysis of the increased or decreased intensity of secondary cosmic radiation in the atmosphere during periods with significant fluctuations in solar activity that occurred in the years 2014-2024. |
-
Iónové kvapaliny a hlboko eutektické zmesi ako modulátory stability a agregácie proteínov
Soft magnetic nanocrystalline materials prepared by unconventional thermal processing techniques
Magneticky mäkké nanokryštalické materiály pripravené nekonvenčnými technikami tepelného spracovania
Magnetically modified textiles
Magneticky modifikovaný textil
-
Mezoškálové javy v systémoch polymérnych a nepolymérnych látok a metodológia skúmania
Misfolding proteins in amyloid diseases and their prevention/therapy
Misfolding proteins in amyloid diseases and their prevention/therapy
Nano-functionalization of liquids for liquid-immersed transformers
Nano-funkcionalizácia kvapalín pre olejové transformátory
| Duration: |
1.7.2023 - 30.6.2027 |
| Program: |
SRDA |
| Project leader: |
RNDr. Rajňák Michal PhD. |
| Annotation: | The current increase in electricity consumption and the greening of its distribution, together with the increase in the price of materials for the production of distribution transformers, represent a challenge for applied research in electric power engineering. The intention of the presented project is to respond to this challenge by functionalizing the current liquids used in electrical transformers in order to increase their cooling efficiency while maintaining or improving their dielectric and insulating properties. For this project, the liquids used in the distribution transformers of the manufacturer interested in this research will be selected. These are commercial liquids primarily based on liquefied natural gas, synthetic and natural esters. Based on current state of the art, the liquids will be functionalized by means of nanotechnologies and nanomaterials, which can significantly improve thermal conductivity, natural and thermomagnetic convection, and thus make the overall heat transport in the liquids more efficient. The functionalizing nanoadditives will be mainly made from carbon (fullerene, nanodiamond) and iron oxides or other ferromagnetic elements. The functionalized liquids will undergo laboratory measurements of physico-chemical, electrical, magnetic and thermal properties. Based on the analyzes of laboratory experiments and numerical simulations, nanofluids with the greatest potential for improving the thermal and insulating properties of the transformer will be selected. The selected nanofluids will be tested by the industrial partner (the customer of the research results) and applied in the selected distribution transformer. The transformer will be subjected to electrical and temperature rise tests. One can expect that the nanofunctionalization of the liquids will result in a lower operating temperature of the transformer, which can lead to an extension of the transformer service life and to the production of smaller transformers. |
Electromagnetically tunable structures in ferromagnetic cholesteric liquid crystals
Návratová projektová schéma
Novel nano/micro-structured metallic materials prepared by unconventional processing routes
Nové nano/mikroštruktúrované kovové materiály pripravené nekonvenčnými spôsobmi spracovania
Unraveling the early events of protein amyloid aggregation - from mechanism to therapy
Objasnenie počiatočných štádií amyloidnej agregácie proteínov - od mechanizmu k terapii
| Duration: |
1.1.2021 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
doc. RNDr. Gažová Zuzana DrSc. |
| Annotation: | Structural changes of poly/peptides leading to the formation of amyloid aggregates are associated with incurable
diseases, like Alzheimer's disease or diabetes. While the general mechanisms of fibril formation and their
characterization are well reported, the early events during poly/peptide fibrillation are still unclear. The project is
focused on understanding the early events mechanisms leading to the formation of pre-fibrillar (partially un/folded
intermediates, nuclei, oligomers) and fibrillar amyloid aggregates of selected globular and intrinsically disordered
proteins. Our focus will be the study of the kinetics of pre-fibrillar structures formation, their morphology, and
cytotoxicity, under various experimental conditions, and in the presence of selected interacting partners (small
molecules, nanoparticles). The obtained results will contribute to understanding the early events of amyloid
aggregation and identifying the inhibitors with therapeutic potential for amyloid diseases. |
Perspective electronic spin systems for future quantum technologies
Perspektívne elektrónové spinové systémy pre budúce kvantové technológie
| Duration: |
1.7.2021 - 30.6.2025 |
| Program: |
SRDA |
| Project leader: |
RNDr. Vargová Hana PhD. |
| Annotation: | The project is aimed at a comprehensive understanding of possibilities and limiting factors of electron spin systems for a quantum computation and quantum information processing, which will be investigated by the combination of advanced analytical and numerical methods including among others exact mapping transformations, localized-magnon theory, exact diagonalization, tensor-network methods, density functional theory, Monte Carlo simulations and density-matrix renormalization group method. In particular, we will examine the possibility to stabilize a bipartite and multipartite entanglement as a genuine quantum phenomenon needed for a quantum computation and quantum information processing at least up to temperature of liquid nitrogen or preferably room temperature. We will also explore the capability of the pulsed electron spin resonance for the spin-qubit manipulation. Quantum spin systems with topologically protected edge states eligible for a topological quantum computation will be investigated in detail together with a few selected quantum spin chains studied in connection with the implementation of a quantum teleportation. Frustrated Heisenberg spin systems supporting either the presence of a nontrivial skyrmion phase or magnon-crystal phases will be investigated in connection with the possibility to store a quantum information or to implement more complex quantum circuits. Heterostructures composed of atomically thin layers coupled by van der Waals forces will be examined with respect to a superconducting pairing and topological quantum computation. The studied electron spin systems will be either motivated by the effort to understand unconventional behavior of existing real magnetic materials or will be supplemented by the respective proposals for their experimental realization. |
Self-organization processes in soft hybrid mixtures of liquid crystals and nanoparticles
Procesy samousporiadania v mäkkých hybridných zmesiach kvapalných kryštálov a nanočastíc
| Duration: |
1.1.2021 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
RNDr. Tomašovičová Natália CSc. |
| Annotation: | The proposal aims to approach the research of liquid crystals doped with nanoparticles of different kind from a
novel perspective of the self-organization that has an indisputable importance covering all fields of natural
sciences, and has also a deep impact in social sciences. In such composite systems a subtle interplay among
the nanoparticles, the self-assembling matrix and the topological defects commands the self-organization
process. We will focus on the electric/magnetic field induced self-organization in such systems experimentally on different length scales by investigating the processes in different phases, isotropic, nematic, cholesteric with the anticipation that our results can be exploited in applications such as guided material transport, magnetic/electric switches/sensors, chemical/biosensors, in microfluidic/lab-on-a-chip devices, etc. We are convinced that systematic studies in this topic may change fundamentally current knowledge. |
Heavy quark production as a probe of Quantum Chromodynamics
Produkcia ťažkých kvarkov ako sonda kvantovej chromodynamiky
| Duration: |
1.1.2022 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
doc. RNDr. Nemčík Ján CSc. |
| Annotation: | The present project is focused on further development and testing of theoretical descriptions of various phenomena inherent in quantum chromodynamics (QCD) in close connections to recent phenomenological models of particle physics. The main emphasize is devoted to investigation of several fundamental aspects of QCD dynamics in production of heavy quarks, mainly in diffractive quarkonium electroproduction on proton and nuclear targets at large energies highly relevant for ongoing measurements at the Large Hadron Collider and with the preparation of physics program for newly approved Electron-Ion Collider. |
-
Pružné mikroštruktúry a mikroroboty pre biomedicínske labon-chip aplikácie
| Duration: |
1.7.2022 - 30.6.2026 |
| Program: |
SRDA |
| Project leader: |
doc. Ing. Tomori Zoltán CSc. |
| Annotation: | The development boom of biomedical lab-on-chip (LOC) applications during the last two decades brought the need
for the miniaturization of conventional mechanical actuators, sensors, and manipulators. Light-driven mechanical
microstructures, trapped and moved by optical tweezers, can be easily integrated into the microfluidic LOC
environment. The vast majority of light-driven microstructures is prepared by two-photon polymerization. It is the
main objective of the present project to exploit the possibilities of working with flexible (deformable) microstructures, which were not used in biomedical applications, yet. Two well-defined LOC application areas are
targeted: micro-rheology and single-cell manipulation. Micro-viscometers utilizing the effect of the surrounding fluid
medium on the deformation (deflection) of flexible micro-cantilevers will be developed. The novel viscometer
devices will be either anchored to the bottom glass surface or kept mobile and optically transportable inside the
micro-fluidic system. Light-driven elastic micro-robots will be designed and tested for capture, transport, and
release of single live cells. The operation of the developed micro-manipulators will be automated to build
multicellular systems, mimicking the tissue conditions, in an autonomous way. To facilitate the flexible
microstructure development and optimization, the material properties of the photo-polymers will be determined by
comparing experimental deformation data with the results of numerical simulations. |
-
REBCO masívne supravodiče na báze Y, Gd, Sm a Eu pre praktické aplikácie
| Duration: |
1.7.2022 - 30.6.2026 |
| Program: |
SRDA |
| Project leader: |
Ing. Diko Pavel DrSc., akademik US Slovenska |
| Annotation: | The project is focused on research and development of selected REBCO bulk singlegrain superconductors (BSS).
We will examine YBCO, GdBCO, SmBCO and EUBCO systems, which are currently preferred in terms of
mastering their production technology and specific applications. Based on our latest results, we will focus on the
alloying of LREBCO (LRE- light rare earths) with elements that suppress Ba/LRE substitution in the crystal lattice,
the addition of nanocrystalline BaCeO3, the bimodal size distribution of pining centres and the configuration of
holes in REBCO BSS. We will apply the research results in the development of BSS production technology with
optimized superconducting and mechanical properties. The use of the research and development results achieved
within the project is expected by the manufacturer BSS CAN Superconductors s.r.o.
|
Structure, superconducting and mechanical properties ov bulk REBCO superconductors
Štruktúra, supravodivé a mechanické vlastnosti masívnych REBCO supravodičov
| Duration: |
1.1.2022 - 31.12.2024 |
| Program: |
VEGA |
| Project leader: |
Ing. Diko Pavel DrSc., akademik US Slovenska |
| Annotation: | The project is focused on the research of the influence of the structure on the superconducting and mechanical properties of the REBCO bulk
single grain superconductors (BSS). The effect of the bimodal particle size distribution of RE211 particles in the REBCO single crystal will be studied, as well as the effect of alloying. Acquired
the knowledge will serve to optimize the preparation parameters and structure of REBCO BSS so that they are achieved
the combination of a high value of the trapped magnetic field and levitation force with increased mechanical
strength. We will use experimental methods of powder metallurgy, bulk single crystal growth, X-ray diffraction, light and electron microstructure analysis, magnetization measurements, measurements
of trapped magnetic field and strength measurement. The project will be solved in cooperation with
leading foreign laboratories within the formal (SIT Tokyo, JTU Shanghai, CAN Superconductors) and
informal (University of Cambridge, CRISTMAT Caen, FzÚ Praha, ) cooperation. |
-
Štúdium a modifikácia vlastností pavúčieho proteínu nadprodukovaného v Escherichia coli
Theoretical study of frustrated magnetic systems
Teoretické štúdium frustrovaných magnetických systémov
Theoretical study of cooperative phenomena in strongly correlated electron and spin systems
Teoretické štúdium kooperatívnych javov v silne korelovaných elektrónových a spinových systémoch
| Duration: |
1.1.2022 - 31.12.2025 |
| Program: |
VEGA |
| Project leader: |
RNDr. Farkašovský Pavol DrSc. |
| Annotation: | The proposed project is devoted to the theoretical study of cooperative phenomena in strongly correlated electron and spin systems. The special attention will be paid to specifying the key mechanisms which lead to formation and stabilization of inhomogeneous charge and spin ordering, superconductivity, itinerant ferromagnetism, ferroelectric and magnetocaloric phenomenon due to the big application potential of these phenomena and their possible coexistence. The study will be performed on comprehensive model, which will take into account all relevant interactions in rare-earth and transition metal compounds, where besides the spin-independent Coulomb interaction in d and f band also the spin dependent (double exchange) interaction between both bands will be included. For a solution of this model we plan to elaborate new numerical methods, which will be subsequently used in combination with standard methods of quantum statistical physics (DMRG and QMC) to study the above mentioned phenomena. |
-
Teoretické štúdium vlastností geometricky a interakčne frustrovaných magnetických systémov
-
Topologicky netriviálne magnetické a supravodivé nanoštruktúry
-
UA-Oganesyan
-
UA-Vitushkina
-
Viaczložkové ligandy ako modulátory cieľov spojených s patogenézou Alzheimerovej choroby
The development of translationally relevant regenerative and reparative strategies after spinal cord trauma
Vývoj translačne relevantných regeneračných a reparatívnych stratégií po traumatickom poranení miechy
The total number of projects: 33
