Au Modified F-TiO for Efficient Photocatalytic Synthesis of Hydrogen Peroxide.

In this work, Au-modified F-TiO is developed as a simple and efficient photocatalyst for HO production under ultraviolet light. The Au/F-TiO photocatalyst avoids the necessity of adding fluoride into the reaction medium for enhancing HO synthesis, as in a pure TiO reaction system. The F modification inhibits the HO decomposition through the formation of the ≡Ti-F complex.

A novel "turn-on" fluorescent sensor for hydrogen peroxide based on oxidized porous g-C N nanosheets.

An oxidized, porous graphitic carbon nitride nanosheets (CNNs) was successfully obtained via a bottom-up approach. The inner filter effect (IFE) of Fe (III) tetrakis (1-methyl-4-pyridyl) porphyrin pentachlorideporphyrin pentachloride (FeTMPyP) on the CNNs results in fluorescence quenching of the CNNs due to the overlap of FeTMPyP absorbance band and CNNs emission band. It is interesting that the quenched fluorescence could be "turned on" in response to the participation of H O , which caused by decomposition of FeMPyP.

Inhibitory effect of Athelia rolfsii exopolysaccharides on organ damage in lead-exposed Kunming strain mice.

Herein, Athelia rolfsii exopolysaccharides (AEPS) were used to alleviate organ damage in lead-exposed mice. Analysis of the body weight growth rate and visceral index revealed that AEPS maintained the normal body weight growth rates in lead-exposed mice. Biochemical indicators (T-SOD, CAT, MDA) in serum revealed that AEPS increased the activity of T-SOD in the serum of lead-exposed mice.

Development and validation of a three-dimensional computational fluid dynamics model of root canal irrigation.

Introduction: Root canal irrigation plays an important role in the debridement and disinfection of the root canal system and is an integral part of root canal preparation procedures. The aim was to construct a three-dimensional computational fluid dynamics (CFD) model of root canal irrigation, with a suitable turbulence model, and validate it to provide a novel method for studying the root canal irrigation.

Methods: A camcorder was used to record the effect of irrigation in the in vitro model.