Preparation of a Porous, Sintered and Reaction-Bonded Si₃N₄ (SRBSN) Planar Membrane for Filtration of an Oil-in-Water Emulsion with High Flux Performance.

A porous, sintered, and reaction-bonded Si₃N₄ (SRBSN) planar membrane was prepared by phase-inversion tape-casting, nitridation (at 1350 °C), and sintering (at 1650 °C) of silicon slurry. The membrane was comprised of uniform rod-like β-Si₃N₄ crystals with a large length/diameter ratio and had high porosity and bending strength. The prepared membrane features a typical asymmetric structure with a skin layer, a sponge layer, and finger-like voids and an average pore size of 0.

Single-Phase White Light-Emitting Ca BaLuSiO:Eu/Mn Phosphors.

Single-phase white light-emitting Ca BaLuSiO:Eu/Mn codoped phosphors were successfully synthesized, and their photoluminescence properties were experimentally determined. The analysis of the experimental results suggests that the partial substitution of Ba ions by smaller Ca ions alters the distribution of the Eu luminescence center among the three available Ba sites in the host lattice, which enables the emission to be efficiently tuned from blue to blue-green-yellow region. The incorporation of Mn ions resulted in a red light emission at around 618 nm, through energy transfer from Eu to Mn ions via dipole-dipole interactions.

[Establishment of a glioma orthotopic xenograft model based on imaging technology].

Orthotopic xenograft model of human brain cancer cells is a good preclinical model for evaluation of antitumor compounds. In the present study, an orthotopic xenograft model of U87MG-m Cherry-luc was established in Balb/c nude mice and the tumor growth was monitored via imaging technology including magnetic resonance imaging (MRI), in vivo imaging (IVI) and micro-CT. Furthermore, the model was evaluated with a positive drug temozolomide.