The effect of sulfuration reaction rates with sulphur concentration gradient dependence on the growth pattern and morphological evolution of MoS in laminar flow.

Sulfuration reactions dominate the synthesis of transition-metal dichalcogenides chemical vapor deposition. A neglected critical issue is the evolution of crystal domain morphology and growth models caused by boundary layer development. In this study, we propose two growth models within a laminar flow field to investigate the kinetic mechanism of uniformly grown MoS.

Vapor-Liquid-Solid Growth of Site-Controlled Monolayer MoS Films Via Pressure-Induc ed Supercritical Phase Nucleation.

In this study, a novel pressure-induced supercritical phase nucleation method is proposed to synthesize monolayer MoS films, which is promoter free and can avoid contamination of films derived from these heterogeneous promoters in most of the existing techniques. The low-crystallinity and size-controlled MoO(acac) particles are recrystallized on the substrate via the pressure-sensitive solvent capacity of supercritical CO and these particles are used as growth sites. The size of single-crystal MoS on the substrate is found to be dependent on the wetting area of the pyrolyzed precursor droplets (MoO) on the surface, and the formation of continuous films with high coverage is mainly controlled by the coalescence of MoO droplets.

The production of graphene using impinging jet exfoliation in a binary system of CO and N-methyl pyrrolidone.

High quality and high quantity few-layer graphene was successfully prepared using a new impinging jet method. Natural graphite flakes were first agitated in N-methyl pyrrolidone (NMP) with the assistance of supercritical CO, then the half-exfoliated graphite was further stripped using the shear stress derived from the impinging jets. After the energy conversion and stress analysis of the graphite particles during the whole exfoliation process, it was revealed that the size of the target mesh, the distance between the nozzle and the target, the decompression rate, and the size of the raw materials had a significant influence on the exfoliation process.

[Characteristics of Dissolved CH₄ and N₂O Concentrations of Weihe River in Xinxiang Section in Spring].

Distributions of CH₄ and N₂O concentrations in Weihe River in Xinxiang City were monitored in spring of 2015, and their influencing factors were discussed. The result showed that CH₄ and N₂O were super-saturated in surface water of Weihe River. The variation ranges of two gases' saturations in the surface water of Weihe River were 147.

Clinicopathological characteristics and outcome of primary sarcomatoid carcinoma and carcinosarcoma of the liver.

Background: Primary sarcomatoid carcinoma (SC) and carcinosarcoma (CS) of the liver are rare tumors.

Patients And Methods: From November 1999 to June 2011, clinicopathological features and outcome of 10 SC and 14 CS patients were retrospectively studied.

Results: In the SC group, six patients had hepatocellular carcinoma and four had cholangiocellular carcinoma, while in the CS group, it was nine and five patients, respectively.

Effect of tea polyphenol on oxidative injury in S180 cells induced hepatocarcinoma mice.

The purpose of this study was to evaluate the antioxidant nature of tea polyphenol on S180 cells induced liver cancer in mice. In the present study, hepatocellular carcinoma was induced by tumor transplantation of liver in situ. The antitumor activity of tea polyphenol has been determined in vivo in hepatocellular carcinoma mice after treatment of drug (50, 100, 150 mg/kg body weight) by gavage for 20 days.

Antitumour activity of Lycium chinensis polysaccharides in liver cancer rats.

In the present study, polysaccharides were extracted from the Lycium chinensis (LCP). Rats were divided into four groups. Two groups (Groups A) were maintained on the basal diet, whereas the remaining three groups (Groups B, C and D) had free access to the basal diet and were orally fed with LCP at 200 mg/kg b.

Effects of Lycium barbarum aqueous and ethanol extracts on high-fat-diet induced oxidative stress in rat liver tissue.

This study evaluated the protective effects of aqueous extract of Lycium barbarum (LBAE) and ethanol extract of Lycium barbarum (LBEE) on blood lipid levels, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) activities and liver tissue antioxidant enzyme activities in rats fed a high fat diet (HF). The rats were randomly divided into seven groups of ten rats each and fed a different diet for eight weeks as follows: One group (NC group) was fed a standard diet, one group was fed a high-fat diet (HF group), one group was fed a high-fat diet and orally fed with 20 mg/kg b.w.