Gd/Mn Co-Doped CaBiTiO Aurivillius-Phase Ceramics: Structures, Electrical Conduction and Dielectric Relaxation Behaviors.

In this work, Gd/Mn co-doped CaBiTiO Aurivillius-type ceramics with the formula of CaGdBiTiO + Gd/0.2wt%MnCO (abbreviated as CBT-Gd/0.2Mn) were prepared by the conventional solid-state reaction route.

Effects of Oxide Additives on the Phase Structures and Electrical Properties of SrBiTiO High-Temperature Piezoelectric Ceramics.

In this work, SrBiTiO (SBT) high-temperature piezoelectric ceramics with the addition of different oxides (GdO, CeO, MnO and CrO) were fabricated by a conventional solid-state reaction route. The effects of oxide additives on the phase structures and electrical properties of the SBT ceramics were investigated. Firstly, X-ray diffraction analysis revealed that all these oxides-modified SBT ceramics prepared presented a single SrBiTiO phase with orthorhombic symmetry and space group of 21, the change in cell parameters indicated that these oxide additives had diffused into the crystalline lattice of SBT and formed solid solutions with it.

Microstructures and Electrical Conduction Behaviors of Gd/Cr Codoped BiTiNbO Aurivillius Phase Ceramic.

In this work, a kind of Gd/Cr codoped BiTiNbO Aurivillius phase ceramic with the formula of BiGdTiNbO + 0.2 wt% CrO (abbreviated as BGTN-0.2Cr) was prepared by a conventional solid-state reaction route.

A study on anticancer activity of Caulis Spatholobi extract on human osteosarcoma Saos-2 cells.

The objective of the present study was to investigate the anticancer activity of Chinese medicine Caulis Spatholobi extract on multicentric osteosarcoma cells. Ultraviolet spectrophotometry was used to determine the total flavonoid content in each sample; vanillin sulphuric acid assay was used to determine the condensed tannin content in each sample; and the varying degrees of inhibitory activities of ethanol, ethyl acetate and n-butanol extracts of Caulis Spatholobi on human osteosarcoma Saos-2 cells were studied. The results showed that the inhibitory activity of ethyl acetate extract was the highest among the four extracts.