The anticancer properties of pure copper (II) acetate and copper (II) acetylacetonate, alone and loaded on functionalized sol-gel titania (TiO(2)), were determined in four different cancer cell lines (C6, RG2, B16, and U373), using increasing concentrations of these compounds. The copper complexes were loaded onto the TiO(2) network during its preparation by the solgel process. Once copper-TiO(...

Biomass offers a renewable carbon source that could be utilized as a raw material in the chemicals industry. A potential route for the conversion of biomass feedstock’s into industrial chemicals is through the catalytic conversion of biomass sugars (glucose) to furan based compounds through an aqueous reforming process. However, to accommodate the transport of these bulky sugars within the cata...

Oltean, G. 2014. From Current Collectors to Electrodes. Aluminium Rod Structures for Three-dimensional Li-ion Micro-battery Applications. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1110. 63 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-8847-5. The potential use of 3D aluminium nanorod structures as current collectors and ne...

The high temperature treatment of kaolinite-muscovite alternate layers doped by bismuth oxide was studied by TGA and DTA, X ray diffraction, and electron microscopy (SEM). Thermal analyses shows that the two main transformation stages are the dehydroxylation of phyllosilicates and the structural reorganization of the whole assembly. During dehydroxylation, a progressive decrease of the structur...

In the present review, aerogels designate dried gels with a very high relative pore volume. These are versatile materials that are synthesized in a first step by low-temperature traditional sol-gel chemistry. However, while in the final step most wet gels are often dried by evaporation to produce so-called xerogels, aerogels are dried by other techniques, essentially supercritical drying. As a ...

It has been thought that many novel properties and potential applications would emerge from monodisperse materials with small dimensions. Therefore, the synthesis of monodisperse nanoparticles has been intensively pursued for their technological and fundamental scientific importance. The synthesis of nanostructured magnetic materials has become a particularly important area of research and is a...

In recent years, multiferroics, showing the coexistence of magnetic and ferroelectric orders in a certain range of temperature, have attracted a great deal of attention due to the fascinating fundamental physics and potential applications for novel magnetoelectric devices. Among all multiferroic materials studied so far, perovskite-type BiFeO3 (BFO) is known to be one of the several compounds t...

The changes of the phase composition of iron oxide samples prepared by solgel method using single precursor both for nanoparticles and the matrix were studied by x-ray diffraction. Obtained data were analyzed by an approach using the Debye formula which is suitable for the size of particles up to about 10 nm. The phase composition of the nanoparticles was described by a core-shell model corresp...

As a relatively new class of photovoltaic devices with a photoelectrochemical system consisting of a dye-sensitized semiconductor film and an electrolyte, dye-sensitized solar cells (DSSCs) have been regarded as a promising alternative to conventional solid-state semiconductor solar cells. They are relatively cost-effective, are easy to manufacture, and can be readily shaped with flexible subst...