Nano-oxides washcoat for enhanced catalytic oxidation activity toward the perovskite-based monolithic catalyst.

In order to explore a superior washcoat material to give full play to the catalytic activity of perovskite active components on the monolithic catalysts, three novel types of LaCoO/washcoat/cordierite monolith catalysts were prepared by a facile two-step procedure which employed the cordierite honeycomb ceramic as the monolith substrate, the nano-oxides (ZrO, ɤ-AlO, TiO) as the washcoat, and the perovskite of LaCoO as the active components. The blank cordierite, powdered LaCoO, semi-manufactured monolithic catalysts (washcoat/cordierite), and manufactured monolithic catalysts (LaCoO/washcoat/cordierite) were characterized by XRD, SEM, XPS, N adsorption-desorption, H-TPR, and ultrasonic test, and their catalytic activities and catalytic stability were evaluated by the toluene oxidation test. The research results indicate that the nanoparticles coated on the cordierite substrate as the washcoat can give full play to the catalytic ability of the LaCoO active components and also showed high catalytic stability.

Effects of Chahuangjing on Decorporation and Radiation Protection Against Tritiated Water.

The purpose of this study was to investigate the effects of Chahuangjing, a novel traditional Chinese medicinal compound, on decorporation and radiation protection against tritiated water (HTO). Sixty male specific-pathogen-free-grade C57BL/6J mice were randomly divided into 12 groups: mice in 4 control groups were intraperitoneally injected with sterile water; mice in 4 HTO groups were intraperitoneally injected with 11.1 × 10 Bq/g of HTO; and mice in the other 4 groups were administered with HTO and a Chahuangjing compound (0.

Protective effect of polydatin on radiation-induced injury of intestinal epithelial and endothelial cells.

This study aimed to examine the radioprotective effect of polydatin (PD) on crypt and endothelial cells of the small intestines of C57BL/6 mice that received abdominal irradiation (IR). Mice were treated with 6 MV X-ray (20 Gy) abdominal IR at a dose rate of 200 cGy/min. Thirty minutes before or after IR, mice were intraperitoneally injected with PD.

Nonylphenol induces pancreatic damage in rats through mitochondrial dysfunction and oxidative stress.

The organic alkylphenol 4-nonylphenol (NP) is regarded to be an endocrine disrupting chemical (EDC), one of the widely diffused and stable environmental contaminants. Due to its hydrophobicity and long half-life, NP can easily accumulate in living organisms, including humans, where it displays a series of toxic effects. It has been widely reported that NP affects male reproduction.