A5008830644- Magnetic properties of thin films
- Theoretical and Computational Physics
- Magnetic Properties and Applications
- Physics of Superconductivity and Magnetism
- Crystallography and Radiation Phenomena
- ZnO doping and properties
- Erythrocyte Function and Pathophysiology
- Cardiac Valve Diseases and Treatments
- Photosynthetic Processes and Mechanisms
- Infective Endocarditis Diagnosis and Management
- Aortic Disease and Treatment Approaches
- Congenital Heart Disease Studies
- Cardiac Structural Anomalies and Repair
- Hemoglobin structure and function
- MicroRNA in disease regulation
- Electrocatalysts for Energy Conversion
- Advanced X-ray Imaging Techniques
- Advancements in Battery Materials
- Circular RNAs in diseases
- Cardiovascular and Diving-Related Complications
- Graphene research and applications
- Magnetic and transport properties of perovskites and related materials
- Surface and Thin Film Phenomena
- Microstructure and mechanical properties
- Carbon Nanotubes in Composites
Medical University of Białystok
2009-2025
Jagiellonian University
2022-2025
SOLARIS National Synchrotron Radiation Centre
2023
University Clinical Hospital In Bialystok
2012-2023
AGH University of Krakow
2010-2020
Atlantic General Hospital
2011
Wrocław University of Science and Technology
1980
Abstract The SOLARIS synchrotron located in Krakow, Poland, is a third-generation light source operating at medium electron energy. first was observed 2015, and the consequent development of infrastructure lead to users’ experiments soft X-ray energies 2018. Presently, expands its operation towards hard X-rays with continuous developments beamlines concurrent infrastructure. In following, we will summarize design, describe research together main performance parameters, upgrade, plans.
Left ventricular (LV) dysfunction after acute myocardial infarction (AMI) is associated with an increased risk of heart failure (HF) development. Diverse microRNAs (miRNAs) have been shown to appear in the bloodstream following various cardiovascular events. The aim this study was identify prognostic miRNAs LV AMI. Patients were divided into subgroups comprising patients who developed or not within six months infarction. miRNA profiles determined plasma and serum samples on first day Levels...
Abstract Exceptional preservation of biogeochemical complexity in the Precambrian is largely limited to cherts, phosphates and shales; however, ancient fossils, including microbial mats microbially induced sedimentary structures, also occur, more rarely, poorly sorted, coarse-grained siliciclastics. The precise micromechanics by which exceptional retention organic traces occur within such rocks over billion-year geological timescales remain understood. Herein, we explore micro–nano-scale...
Data from animal experiments strongly suggest that ceramide is an important mediator of lipotoxicity in the heart and accumulation contributes to cardiomyocyte apoptosis associated with type 2 diabetes obesity. However, it remains unknown whether a similar relationship present also human heart. Therefore, we aimed examine myocardial obese diabetic patients elevated level. The study included 11 lean 26 overweight or moderately subjects without (n = 11, OWT) 15, T2D-OWT) history diabetes....
An in-plane spin-reorientation transition occurring during the growth of epitaxial Fe films on W(110) was studied in situ by using nuclear resonant scattering synchrotron radiation. The originates at Fe/W(110) interface and proceeds via a noncollinear spin structure resembling planar domain wall that propagates towards surface with increasing film thickness.
Acute myocardial infarction (AMI) is a life-threatening episode of coronary artery disease. Recently, circulating myocardial-derived microRNAs (miRNAs) have been reported as potential biomarkers infarction. The present study aimed to identify differentially expressed miRNAs in patients with ST-segment elevation that could be potentially dysregulated response early damage. miRNA expression profile analysis was performed using the Serum/Plasma Focus Polymerase Chain Reaction (PCR) panel Exiqon...
Antiferromagnet/ferromagnet (AFM/FM) bilayers that display the exchange bias (EB) effect have been subjected to intensive material research, being key elements of novel spintronics systems. In a commonly accepted picture, antiferromagnet, considered as rigid due its high anisotropy and magnetic hardness, controls properties ferromagnet, such shift hysteresis loop or coercivity. We show this AFM-FM master-slave hierarchy is not generally valid influence ferromagnet on (MA) neighbouring...
We have engineered the magnetic properties of 1--8 nm Co films epitaxially grown on an Au-buffered bifacial $\mathrm{W}(110)/\mathrm{W}(540)$ single crystal. The surface $\mathrm{Au}/\mathrm{W}(110)$ was atomically flat, whereas $\mathrm{Au}/\mathrm{W}(540)$ followed morphology vicinal W surface, showing a regular array monoatomic steps. For $\mathrm{Au}/\mathrm{W}(540)$, existence out-of-plane magnetization component extended strongly to thickness $d$ about 8 nm, which accompanied by...
We report on in-plane magnetic anisotropy in epitaxial bcc Co/Fe(110) bilayers W(110). The surface the exhibited a strong nonmonotonic dependence Co coverage. Magneto-optical studies revealed sharp maximum of anisotropy, $2.44\phantom{\rule{0.16em}{0ex}}\mathrm{mJ}/{\mathrm{m}}^{2}$, at ${d}_{\mathrm{Co}}=5\phantom{\rule{0.16em}{0ex}}\AA{}$. This giant interfacial allowed small fraction monolayer to reorient magnetization bulk-like Fe film. conclude that mono- and double-layer Co(110) with...
We investigated the spin reorientation transition during growth of Fe(110) films on W(110) at 250 \ifmmode^\circ\else\textdegree\fi{}C using in situ nuclear resonant scattering x rays. The measurements as a function grazing incidence angle demonstrated that proceeds via an intermediate, noncollinear magnetic state, and with increasing thickness, magnetization from [1$\overline{1}$0] to [001] direction is activated film surface completed Fe/W interface. Furthermore, temperature was decreased...
Controlling spin orientation in magnetic nanostructures is one of the crucial issues modern spintronics. The authors show a mechanism for steering direction ferromagnet that coupled to FeRh alloy. In Co/FeRh epitaxial bilayers, when undergoes its antiferromagnetic-to-ferromagnetic transition, spins Co film reversibly switch between orthogonal in-plane directions. This phenomenon, which goes beyond popular idea heat-assisted recording (HAMR), provides means writing information...
The magnetic properties of ultrathin Fe films grown on Au(001) were studied at room temperature as a function iron thickness in the range two to three monolayers (ML). magneto-optic Kerr effect (MOKE) indicated that spin reorientation from an in-plane direction film normal takes place when is reduced 2.3 2.0 ML. Values effective anisotropy constants determined MOKE and superconducting quantum interference device measurements. flow analysis space revealed transition occurs via intermediate...
In our study, we examined the chemical and magnetic properties of FeO in an epitaxial Fe/MgO(dMgO)/FeO trilayer for different MgO thicknesses, dMgO. Analysis structure revealed a stoichiometry improvement layer Fe/MgO/FeO comparison with Fe/FeO bilayer. Furthermore, showed that deposition subtle at interface results enhanced exchange interaction between Fe FeO. For dMgO = 1.4 Å, noted 200% enhancement bias compared to Fe/FeO.
Electrodeposition is a versatile method for synthesizing nanostructured films, but controlling the morphology of films containing two or more elements requires detailed understanding deposition process. We used liquid cell transmission electron microscopy to follow electrodeposition PtNi nanoparticle on carbon electrode during cyclic voltammetry. These
Abstract Different forms of iron compounds embedded in non‐functionalized ( as prepared ) and functionalized multiwall carbon nanotubes (MWCNTs) were studied. Iron used to catalyze MWCNT synthesis can be found inside built‐in within their walls. Mössbauer spectroscopy was applied study valence spin states well magnetic ordering the compounds. In spectra MWCNTs Fe 3 C carbide provides main contribution. The content decreases by about 20 40% carboxylated (MWCNTs‐COOH) ammonium salt...
We studied the influence of low doses γ radiation (from 0.04 to 1.8 mGy) on stability human red blood cells (RBC) from healthy donors and diabetic patients using absorption spectroscopy. Because alteration many enzymatic pathways in RBCs resulting strong modification lipid protein membrane components one could expect that ionizing γ-radiation should a different way. Indeed, distinct discontinuities monotonic changes hemolysis detected suggest various chemical processes are activated these...
Comparative studies of the magnetic properties epitaxial Fe/MgO/Fe trilayers, which were directly grown on an MgO(001) crystal and a homoepitaxial MgO buffer layer, performed to examine interlayer exchange coupling as function spacer thickness. Measurements magneto-optic Kerr effect at room temperature demonstrated that there was strong antiferromagnetic (AFC) between Fe layers, mediated by insulating barrier. A measurable AFC found in range thickness (dMgO) from single monolayer (2 Å) 6 Å,...
Infective endocarditis (IE) on the tricuspid valve usually requires complete resection of infected tissue and implantation a prosthesis.We assumed that total elimination artificial material entirely patient-derived biological would reduce recurrence IE.The group consisted 7 consecutive patients who underwent cylindrical created from patient's own pericardium in orifice. There were only men aged 43 to 73 years. Isolated reimplantation with pericardial cylinder was performed 2 patients. Five...
Nuclear resonant scattering (NRS) of synchrotron radiation was used to investigate the magnetic anisotropy iron films in MgO/Fe(t)/MgO(001) structures for t = (4–10) Å. The low-temperature NRS spectra were analyzed using a static magnetization model involving two interface-like components and bulk-like component. We confirmed existence perpendicular MgO/Fe/MgO at 10 K with an increasing in-plane component > 8 Å over entire thickness Fe film. evolution structure temperature studied...
Abstract Exchange bias (EB) is studied in an epitaxial CoO/Fe bilayer grown by molecular beam epitaxy on MgO(001). The characterization of the layer structure and interface quality was performed using LEED, AES conversion electron Mössbauer spectroscopy(CEMS). Detailed experimental studies EB effect as a function temperature were carried out magneto‐optical Kerr effect. Notwithstanding formation Fe oxides at interface, evidenced CEMS measurements, we observed negative with blocking T B = 257...