Mechanically Triggered Protein Desulfurization.

The technology of native chemical ligation and postligation desulfurization has greatly expanded the scope of modern chemical protein synthesis. Here, we report that ultrasonic energy can trigger robust and clean protein desulfurization, and we developed an ultrasound-induced desulfurization (USID) strategy that is simple to use and generally applicable to peptides and proteins. The USID strategy involves a simple ultrasonic cleaning bath and an easy-to-use and easy-to-remove sonosensitizer, titanium dioxide.

[Chemical constituents from petroleum ether fraction of Artemisia stolonifera].

The chemical constituents in the petroleum ether fraction of Artemisia stolonifera were investigated. Twenty compounds(1-20) were isolated from the petroleum ether fraction of A. stolonifera by silica gel, Sephadex LH-20, and ODS chromatography and semi-preparative HPLC.

A SAW Wireless Passive Sensing System for Rotating Metal Parts.

Passive wireless surface acoustic wave (SAW) sensors are very useful for on-site monitoring of the working status of machines in complex environments, such as high-temperature rotating objects. For rotating parts, it is difficult to realize real-time and continuous monitoring because of the unstable sensing signal caused by the continuous change of the relative position of the rotating part to the sensor and shielding of the signal. In our SAW sensing system, we propose a loop antenna integrated with the rotating part to obtain a stable sensing signal owing to its omnidirectional radiation pattern.

Simple Method to Supply Organic Nanoparticles with Excitation-Wavelength-Dependent Photoluminescence.

Organic fluorescent nanoparticles (FNPs) have become increasingly prevalent in a variety of applications but the creation of organic FNPs using a simple procedure and that possess diverse morphology, multicolor luminescence, and high brightness has been challenging. Herein, a facile strategy to prepare this class of organic FNPs is established by way of preformed organic nanoparticles themselves. It was found that as long as the nanoparticles contained aromatic/heterocyclic rings in their base unit and regardless of morphologies (e.

Investigation of composition dependent structural and optical properties of the Zn(1-x)Cd(x)S, coaxial Zn(0.99-x)Cd(x)Cu(0.01)S/ZnS, Zn(0.99-x)Cd(x)Mn(0.01)S nanorods generated by a one-step hydrothermal process.

High-quality Zn(1-x)Cd(x)S, coaxial Zn(0.99-x)Cd(x)Cu(0.01)S/ZnS and Zn(0.

CD24 single nucleotide polymorphisms and cancer risk.

Unlabelled: Cluster of differentiation 24 (CD24) has been implicated in the development of cancer. Several single nucleotide polymorphisms (SNPs) in CD24 gene are reported to exert diverse effect on cancer risk. However, the association between CD24 SNPs and cancer risk remains unclear due to contradictory published findings.

MTHFR C677T polymorphism contributes to the risk for gastric cancer.

Methylenetetrahydrofolate reductase (MTHFR) has been demonstrated to be involved in carcinogenesis. Increasing individual studies have investigated the role of MTHFR C677T polymorphism in gastric cancer pathogenesis, but with inconsistent findings. The aim of this study was to clarify the potential association of the MTHFR C677T polymorphism with gastric cancer risk by pooling all available data from published case-control studies.