Now showing items 1-10 of 70
Mechanochemically induced amorphous/crystalline phase transition in the Bi4Ti3O12 compound
Concurrent milling of Bi4Ti3O12 was carried out in a planetary ball mill with hardened-steel 13 or 6 mm diameter balls with a goal to investigate how the system responds to the constrains imposed by milling. Milling intensity ...
Far infrared study of impurity local modes in palladium-doped PbTe and PbSnTe
PbTe and Pb0.85Sn0.15Te single crystals, doped with Pd, were grown using the Bridgman method. Far infrared spectra were measured in the temperature range between 10 K and 300 K. The experimental spectra were numerically ...
Nanosilica/PMMA composites obtained by the modification of silica nanoparticles in a supercritical carbon dioxide-ethanol mixture
Nanosilica/poly(methyl methacrylate) (PMMA) composites are used to improve the mechanical properties of neat PMMA polymer. In order to obtain superior mechanical properties, it is essential to achieve good bonding between ...
Phase Formation at the Sintering of Sa, Zn, Ti Oxides
Complex compounds with oxide phases of Ba, 2n, and 11 are widely used in instrument engineering. It is also important to find such production routes for ceramics, which provide their stable structure and properties. Phase ...
Influence of mechanical activation on structural and electrical properties of sintered MgTiO3 ceramics
(Belgrade : International Institute for the Science of Sintering, 2009)
The aim of this work was to analyze the influence of mechanical activation on the MgCO3-TiO2 system. Mixtures of MgCO3-TiO2 were mechanically activated for 15, 30, 60 and 120 minutes in a planetary ball mill and after that ...
Structural and Microstructural Analysis of Human Alveolar Bone Using X-Ray Powder Diffraction and Raman Spectroscopy
Poster presented at the 11th Conference of the Materials Research Society of Serbia - YUCOMAT 2009, Herceg Novi, Montenegro, August 31 – September 4, 2009.
Synthesis and characterization of rare earth oxide nanostructured particles doped with Eu for luminescent applications obtained by aerosol method
(Madrid : Sociedad Espanola de Ceramica y Vidrio, 2009)
Gadolinium and Ytrium oxides doped with europium (Gd2O3:Eu, Y2O3:Eu) have luminiscent properties. Such properties are improved with the use of nanostructured materials with spherical geometry and narrow particle size ...
Controllable synthesis of horseradish peroxidase loaded poly(D,L-lactide) nanospheres
(American Scientific Publishers, 2009)
In this work, horseradish peroxidase (HRP), a model protein, was encapsulated by the precipitation method with additional step of homogenization, using polymer poly(D,L-lactide) (PDLLA). The purpose of this study was to ...
Poly(lactide-co-glycolide)-based micro and nanoparticles for the controlled drug delivery of vitamins
(Bentham Science Publishers, 2009)
Controlled drug delivery systems and polymeric carriers have undergone significant development in recent years. Polymers like polylactides (PLA), polyglycolides (PGA), poly(lactide-co-glycolides) (PLGA), are approved by ...
Influence of different degradation medium on release of ascorbic acid from poly(D,L-lactide-co-glycolide) nano- and microspheres
The major goals of the present study were to examine the effects of the type of release medium on the resulting drug release kinetics and to get further insight into the underlying drug release mechanisms. Spherical micro ...