Silicon dioxide (SiO2) and zinc oxide (ZnO) nanoparticles are widely used in various applications, raising issues regarding the possible adverse effects of these metal oxide nanoparticles on human cells. In this study, we determined the cytotoxic effects of differently charged SiO2 and ZnO nanoparticles, with mean sizes of either 100 or 20 nm, on the U373MG human glioblastoma cell line. The ove...

Aluminum oxide encapsulated high-permittivity (ε) BaTiO3 and ZrO2 core-shell nanoparticles having variable Al2O3 shell thicknesses were prepared via a layer-by-layer methylaluminoxane coating process. Subsequent chemisorptive activation of the single-site metallocene catalyst [rac-ethylenebisindenyl]zirconium dichloride (EBIZrCl2) on these Al2O3-encapsulated nanoparticles, followed by propylene...

In this study, catalyst of rutile titanium dioxide nanoparticles (rTiO2-NP) has been investigated for the removal and reduction of unburned hydrocarbons as benzopyran. To evaluate and calculate the thermodynamic properties of this aim, pollutants are closed to the nanoparticles and converted them into other products and the carbon dioxide molecules are simulated in the 12th steps. The geometric...

Engineered nanoparticles are widely incorporated into a large number of consumer products due to their specific physico-chemical properties in comparison to bulk materials. Cerium dioxide nanoparticles (CeO2) are currently used in several applications: as a component of catalytic converters, as a UV blocking or polishing agent or as a diesel fuel additive. The fate of engineered nanoparticles i...

Background & Aims of the Study: The heterotrophic bacteria are widely used as a water microbial pollution index for drinking water. The aim of this study was to investigate the effect of metallic nanoparticles such as Zero Valent Iron (ZVI), Titanium dioxide (TiO2) and Zinc oxide (ZnO) on Heterotrophic Bacter...

INTRODUCTION In modern medicine and dentistry the use of biomaterials is a fast developing field of increasing interest. Especially in dentistry the interaction between biomaterials like implant materials and the soft tissue in the oral cavity is in the focus of daily research. In this context the high importance of testing materials and their surfaces concerning their biocompatibility towards ...

Combining dental ceramics with other prosthetic metallic restorations might release metal ions, thus affecting the oral tissues of patients. In this study, we evaluated electrochemical solubility various in a galvanic experimental setup vitro. Smooth and rough feldspathic zirconium dioxide (at pH 5.5 3.0) were exposed to an electric field. Calcium, barium, selected as parameters determine both ...