A5054606618- Nanoparticles: synthesis and applications
- Catalytic Processes in Materials Science
- Orthopaedic implants and arthroplasty
- TiO2 Photocatalysis and Solar Cells
- Graphene and Nanomaterials Applications
- Bone fractures and treatments
- Bone Tissue Engineering Materials
- Magnetic and Electromagnetic Effects
- Advanced Photocatalysis Techniques
- Therapeutic Uses of Natural Elements
- Titanium Alloys Microstructure and Properties
- Dendrimers and Hyperbranched Polymers
- Air Quality and Health Impacts
- Hydrogen embrittlement and corrosion behaviors in metals
- Hip and Femur Fractures
- Crystallization and Solubility Studies
- Brake Systems and Friction Analysis
- Nanocomposite Films for Food Packaging
- Building materials and conservation
- Occupational exposure and asthma
- Characterization and Applications of Magnetic Nanoparticles
- Medical and Biological Ozone Research
- Graphene research and applications
- Vibration Control and Rheological Fluids
- Geochemistry and Elemental Analysis
VSB - Technical University of Ostrava
2014-2023
Technology Centre Prague
2015-2018
Sumy State University
2018
One approach for the enhancement of oral drug bioavailability is technique nanoparticle preparation. Risedronate sodium (Biopharmaceutical Classification System Class III) was chosen as a model compound with high water solubility and low intestinal permeability. Eighteen samples risedronate were prepared by solvent evaporation dodecyl sulfate, polysorbate, macrogol, carboxymethyl cellulose dextran stabilizers applied in three concentrations. The characterized dynamic light scattering...
Nanoparticles can be considered as a useful tool for improving properties of poorly soluble active ingredients. Hydrochlorothiazide (Class IV the Biopharmaceutical Classification System) was chosen model compound. Antisolvent precipitation-solvent evaporation and emulsion solvent methods were used preparation 18 samples containing hydrochlorothiazide nanoparticles. Water solutions surfactants sodium dodecyl sulfate, Tween 80 carboxymethyl dextran in mass concentrations 1%, 3% 5%. Acetone...
This paper represents a multidisciplinary approach to biomechanics (medicine engineering and mathematics) in the field of collum femoris fractures, i.e., osteosyntheses with femoral/cancellous screws full or cannulated cross-sections. It presents our new numerical model femoral together their stochastic (probabilistic, statistical) assessment. In first part this article, simple is presented. The model, based on theory planar (2D) beams an elastic foundation 2nd-order theory, characterized by...
Glibenclamide, a drug used for the treatment of type 2 diabetes, belongs to Class II Biopharmaceutical Classification System. It is highly permeable, but poorly water-soluble drug. Nanoparticles glibenclamide were prepared by an emulsion solvent evaporation method using dichloromethane as and 3% (w/w) aqueous solution carboxymethyl dextran sodium salt stabilizer, which was found optimal. A solubility test comparing water bulk nanoparticles confirmed improved (2-fold higher) (0.045 μg/ml)...
Limb asymmetry can, and often does, cause various health problems. Blount bone staples (clips) are used to correct such uneven growth. This article analyzes the performance of a biomechanical staple during (tibia) growth arrest. The considered in this study were made 1.4441 stainless steel, model tibia consisted two materials representing corticalis spongiosis. Hooke’s law was for modeling materials’ behaviors finite element analysis (FEA). maxima stress total displacement evaluated using...
Despite recent intense implementation of increasingly eco-friendly additive manufacturing, the properties nanoparticulate pollutants emitted during Laser Powder Bed Fusion are still not fully understood, and have generally been overlooked. This study aims to fill this gap in current research by providing new insights into distinct metal/oxide core-shell nanoparticles (3–36 nm) that produced 3D printing using stainless steel. It also suggests possible ways for removal these potentially...
Objective . The aim of this prospective study is to evaluate presence and quantity micro- nanosized particles (NPs) interindividual differences in their distribution composition nasal mucosa. Methods Six samples mucosa obtained by mucotomy from patients with chronic hypertrophic rhinosinusitis were examined. Samples divided into 4 parts according the distance nostrils analyzed scanning electron microscopy Raman microspectroscopy detect solid characterize morphology composition. A novel...
An automotive friction brake pad is a complex system consisting of several components with unique and balanced properties related to operation conditions. There are efforts develop pads longer lifetime better performance wear properties. Those composition the pads, therefore, new materials being evolved. Tuning can be achieved selection functional filler optimizing its amount in formulation pad. Laboratory-developed laboratory-prepared nanocomposite material kaolin/TiO 2 (KATI) has been...
This article deals with a new original analytical solution of deformation, force and stress states in wood screw joints up to the limit values pulling out/breaking screw. The screws are under tension. wood-to-screw interaction is effectively simplified by introducing several physical model variants using tangential elastic non-linear foundation. experimental verification proposed models pull-out tests (i.e., out from dry spruce laboratory conditions) confirms correctness linear/non-linear...
The present article describes a method of the preparation erbium oxide nanocrystallites (nano Er₂O₃) via thermal decomposition transient complex formed in situ from Er(NO₃)₃·5H₂O and glycine. Decomposition occurred at about (250±10) °C. Ultra-fine light pink powder was obtained this method. resulting were characterized using X-ray diffraction analysis, which showed having crystallite size equal to 10 nm. Morphology examined by scanning transmission electron microscopy. Electron observed...