Optimization of ScSZ/GDC bilayer thin film electrolyte for anodic aluminum oxide supported low temperature solid oxide fuel cells.

Due to the poor chemical stability of CeO-based materials, doped CeO electrolytes are generally used as a stabilized ZrO protection layer/doped CeO electrolyte bilayer structure. Since the ionic conductivity of stabilized ZrO materials is lower than that of doped CeO materials, the thickness of the ZrO protective layer needs to be optimized. Thus, in this study, nano-porous anodic aluminum oxide template based scandia stabilized zirconia (ScSZ)/gadolinia doped ceria (GDC) bilayer electrolyte low temperature solid oxide fuel cells (LT-SOFCs) are successfully fabricated and investigated.

Solid dispersion formulations of megestrol acetate with copovidone for enhanced dissolution and oral bioavailability.

In order to enhance the dissolution profile and oral bioavailability of megestrol acetate (MA), solid dispersions of MA (MASDs) were formulated with copovidone and crystal sugar as a hydrophilic polymeric carrier and an inert core bead, respectively. Solvent evaporation method and fluidized bed coating technique were employed. MASDs were categorized as crystalline solid dispersion by the characterization of differential scanning calorimetry and X-ray diffraction.