Open Access Conference Proceedings

Abstract: Samples of the moss Pleurozium schreberi were subjected to the nano-ZnO suspension under various conditions and the distribution of the accumulated zinc in their thalli was determined. To assess the presence of the accumulated zinc on the surface of the plant, in the extracellular and intracellular space as well as in the residual fraction, sequential elution technique using distilled water, NiCl2 solution, HNO3 followed by a total decomposition in acid mix was used. [..] Read more

Abstract: The tremendous increase of the use of nanomaterials (NMs) has been witnessed during the last decade in many areas of human life including the chemical industry, cosmetics, biomedicine or food technology. The variety of NMs, their unique properties, almost ubiquitous presence and the size range of 1-100 nm raised the interest of toxicologists. [..] Read more

Abstract: Toxicity of any substance is determined by its physico-chemical properties and tissue exposure. In the case of nanoparticles (NPs), the relevant properties include the size, aspect ratio, surface charge, chemical composition etc.; the tissue exposure represents the NPs’ concentration and exposure duration. [..] Read more

Abstract: Vehicular traffic is connected with large volume of fine particles released during brake processes of cars. Our research is focused on the phase, structure and chemical analysis of the fine particles taken from some car brake parts by their services. [..] Read more

Abstract: Toxicity of TiO2 nanoparticles (NPs) depends on characteristics of NPs such as nanoparticle shape, size, crystal structure, zeta potential, aggregation and agglomeration tendency, surface characteristics and coatings. However, their effect on toxicity remains unclear due to ambiguous results from different studies. [..] Read more

Abstract: Friction associated with wear, representing non-combustion processes in traffic can pose a problem for the human health, mainly in terms of exposure to solid particles. During braking, substantial amounts of micron and sub-micron metal based particles are released into the environment. [..] Read more

Abstract: Easy scale up of production led to an increase in cosmetic industry interest in lipid nanostructures. There are currently some liposome formulations on the market and the amount of these products will indoubtedly continue to grow. [..] Read more

Abstract: From the perspective of the immune system, nanomaterials (NMs) represent invading agents. Macrophages are immune cells residing in all organs and tissues as the first line of defense. [..] Read more

Abstract: Nanosilver, in the form of colloidal silver, has been used for many years. In recent years, the development of efficient green chemistry methods for the synthesis of metal nanoparticles by organisms has become a major focus of researchers. [..] Read more

Abstract: The article describes the preparation of samarium oxide nanoparticles (nano Sm2O3) via thermal decomposition of a transient complex formed in situ from Sm(NO3)3·6H2O and glycine and its acute aquatic toxicity to Chlorella vulgaris. The resulting nanoparticles were characterized by X-ray powder diffraction analysis, which showed the Sm2O3 nanoparticles to be with the crystallite size of 11 nm. [..] Read more

Abstract: Wear debris from automotive brake systems represents a major source of non-exhaust emissions from road traffic. Amount of brake wear debris released to the environment increased with numbers of cars. [..] Read more

Abstract: Functionality of body fluids largely depends on their rheological properties. On the other hand, the increased of exposure of the organism to environmental nanoparticles, i.e. [..] Read more

Abstract: Currently, the issue of nanoparticles is a very dynamic and developing scientific research area. Their positives are indisputable, as proven by a number of scientific papers and studies. [..] Read more

Abstract: The employers shall ensure adequate safety and health protection of the workers. They are obliged to carry out risk assessment and take appropriate measures for risk prevention and control related to all relevant workplace hazards. [..] Read more

Abstract: Influence of graphite addition to the ball-milling charge composed of Mg splinters and Mg17Al12 particles upon the hydrogen sorption was investigated at sorption temperature 623 K. Measurements were carried out by Sieverts method. [..] Read more

Abstract: Hydration is one of the crucial properties for understanding the behavior of any chemical material. Due to the presence of hydrogen bonds together with hydrophobic and other types of intermolecular interactions water sorption influences the properties of the substances. [..] Read more

Abstract: Absorption and luminescence properties of silver and gold nanoclusters embedded in silica matrixes were studied experimentally. Thin SiO2 films with different amount of silver and gold were produced by co-deposition of metal and SiO2 onto the silica substrates in vacuum. [..] Read more

Abstract: Nanofiltration has made tremendous progress during the past decades due to its excellent removal of contaminant from wastewater. These membranes have gained interest recently for the treatment of inorganic effluent to reduce the amount of wastewater produced and in addition improve the quality of effluent. [..] Read more

Abstract: A heterojunction formed between a single n-type ZnO nanorod and p-type GaN template was successfully prepared by low cost chemical bath deposition technique. Periodic circular patterns were fabricated by focused ion beam etching through poly(methyl methacrylate) mask to control the size, position, and periodicity of the ZnO nanorods. [..] Read more

Abstract: Palladium nanoparticles (5.3 ± 1.4 nm) catalyze the reduction of hexacyanoferrate(III) ions with hydrogen in an aqueous solution. The reaction rate substantially (approximately 5.5-fold) increases if the nanoparticles are pre-saturated with hydrogen. [..] Read more