Open Access Conference Proceedings

Abstract: The article deals with the mechanical properties of geopolymers, which were filled micro-and nanoparticles from coke production. As a matrix for the preparation of geopolymer was used materiál Baucis Lk and LNa, commercial product from České lupkové závody Nové Strašecí. [..] Read more

Abstract: GaN/AlGaN-based high electron mobility transistors (HEMTs) attain better performance than their state-of-the-art full silicon-based counterparts, offering higher power, higher frequency as well as higher temperature of operation and stability, although their voltage and current limits are somewhat lower than for the SiC-based HEMTs. GaN/AlGaN-based HEMTs are a potential choice for electric-powered vehicles, for which they are approved not only for their power parameters, but also for their good temperature stability, lifetime and reliability. [..] Read more

Abstract: Studying the nonlinearities in the resonant mode one may face thermo-optical effects due to sample overheating, occurring upon exposure to high-frequency repetition rate probing pulse. If present, thermo-optical contribution to the refractive index are extremely hard to separate from the electronic contribution. [..] Read more

Abstract: Dynamical model of self-assembly of nanoparticles in the field of laser radiation is developed and applied to the investigation of the possibility of the assembly of variously shaped structures comprised of the particles. Specifically, the computer model of the process of formation of structures with pre-defined geometry from a set of three initially isolated nanoparticles. [..] Read more

Abstract: The impact of GeO2 on the sintering kinetics and mass transfer mechanisms in tetragonal zirconia nanopowders has been investigated. The shrinkage kinetics of 3Y-TZP was investigated by the dilatometry analyses. [..] Read more

Abstract: Quantum dots (QDs) are of great interest for creating optoelectronic devices due to their tunable bandgap, high stability and simple solution processability for device fabrication. One of the ways to increase the efficiency of such devices is to combine QDs with different carbon nanostructures. [..] Read more

Abstract: The chemistry of bitumen and the percentage of asphaltene can vary significantly depending on external and internal factors such as the source and method of bitumen extraction. This makes graphene embedded bitumen a complex ternary phase system. [..] Read more

Abstract: Nanocellulose has emerged as attractive new biobased reinforcement and gas barrier material in for example sustainable food packaging. Herein we report on Cellulose Nano Crystals (CNC) for application in agriculture, as potential filler and adhesion promoter of microbial biofertilizer formulations. [..] Read more

Abstract: The most common tasks, we encounter during restoration stone historical monument buildings, include mainly cleaning and removing of the crust from their surface. As part of the experimental research of nanomaterials and the widespread use of these materials for the preservation and restoration of stone monuments, the use of TiO2 is currently being addressed. [..] Read more

Abstract: Hierarchical plant surface structures show many characteristics that are an inspiration for humans. They are associated with the process of photosynthesis and provide a hydrophobic or a hydrophilic behaviour, an absorption of solar radiation, etc. [..] Read more

Abstract: The significant cost of newly developed pharmacological products is due to the toxicity examination performed on animals in pre-clinical trials. Our ultimate goal is to develop a biosensor array to determine acute cardiotoxicity. [..] Read more

Abstract: Polyurethane was treated by nitrogen ions with energy of 20 keV and fluence of 1014 - 1016 ions/cm2. Modified polyurethane was investigated by the IR FTIR, Raman and EPR spectroscopy, AFM microscopy. [..] Read more

Abstract: Surface functionalization of 2D MoS2 materials offers a convenient way to tune their properties and facilitate their application in the field of bio-sensing and nanomedicine. In this study, three different liquid phase exfoliation (LPE) methods were utilized for MoS2 exfoliation: LPE in 45% ethanol solution, LPE in ultrapure water and amino acid intercalation assisted LPE. [..] Read more

Abstract: TI6Al4V is a standard medical titanium alloy. In this study, we compared ground Ti6Al4V discs with nanostructured Ti6Al4V discs prepared using the anodic oxidation method at 30V. [..] Read more

Abstract: Silver nanoparticles (NPs) exhibit significant antimicrobial activity against a broad range of bacteria and fungi at concentrations ranging from a few ppm to tens of ppm that are not cytotoxic to human cells. Silver NPs also strongly enhance antibacterial activity against multiresistant, β-lactamase and carbapenemase-producing Enterobacteriaceae when combined with antibiotics. [..] Read more

Abstract: This paper presents some findings from the rheological and drug dissolution characterizations of hyaluronic acid (HyA)-based colloidal drug delivery systems. During this investigations the widely applied, non-steroidal, anti-inflammatory ketoprofen (KP) has been used as model drug. [..] Read more

Abstract: Currently used xenogeneic biological heart valve prostheses are decellularized and crosslinked with glutaraldehyde. These grafts usually undergo degeneration and calcification. [..] Read more

Abstract: This paper investigates the preparation of composite metal-polymer nanostructures formed on the surface of polyethersulfone (PES) by an excimer laser beam. Conditions for laser beam modification varied with the laser fluence of 4-28 mJ·cm−2 and number of pulses up to 6000. [..] Read more

Abstract: At present, little is known about the health effects in the workers processing nanocomposites. In our study, 20 researchers (41.8±11.4 y/o), handling nanocomposites for 17.8±10.0 years were examined pre-shift and post-shift, together with 21 controls (42.7±11.5 y/o). [..] Read more

Abstract: Many experimental studies have demonstrated the ability of nanoparticles to induce DNA damage and oxidative stress in a number of organs, probably due to the formation of reactive oxygen species. Our knowledge, however, is still limited, especially as regards the persistence of genotoxic effects after long-term exposure to nanoparticles and their health risks. [..] Read more