Titanium Oxide Microspheres with Tunable Size and Phase Composition

Microfluidic synthesis of monodisperse porous microspheres with size-tunable pores

We use a perfluorinated-dendrimer–dye complex that stabilizes microbubbles as a novel pore-forming agent. We use microfluidics to produce monodisperse emulsions containing a polymer matrix material, a model active, and the perfluorinated complex; upon drying, the emulsions form porous microspheres. This porosity causes the encapsulated model active to be released faster than from non-porous mic...

Synthesis of titanium-oxide nanoparticles with size and stoichiometry control

Tunable Nanostructures and Crystal Structures in Titanium Oxide Films

Controllable nanostructures in spin coated titanium oxide (TiO(2)) films have been achieved by a very simple means, through change of post deposition annealing temperature. Electron beam imaging and reciprocal space analysis revealed as-deposited TiO(2) films to be characterized by a dominant anatase phase which converts to the rutile form at 600 degrees C and reverts to the anatase modificatio...

Size-dependent and tunable crystallization of GeSbTe phase-change nanoparticles

Chalcogenide-based nanostructured phase-change materials (PCMs) are considered promising building blocks for non-volatile memory due to their high write and read speeds, high data-storage density, and low power consumption. Top-down fabrication of PCM nanoparticles (NPs), however, often results in damage and deterioration of their useful properties. Gas-phase condensation based on magnetron spu...

Surface composition and texture of titanium polished with colloidal silica suspension and chromic oxide slurry.

CP titanium was polished with a colloidal silica suspension and chromic oxide slurry under low and high pressures. The polished surfaces were characterized by means of EPMA and XPS. Irrespective of polishing pressure, colloidal silica suspension successfully created a mirror-like surface that was clean at EPMA level. However, XPS detected a small amount of silicon on the outermost surface. On t...