Ursodeoxycholic acid grafted chitosan oligosaccharide self-assembled micelles with enhanced oral absorption and antidiabetic effect of oleanolic acid.

Oleanolic acid (OA) is a food-derived bioactive component with antidiabetic activity, but its water solubility and oral bioavailability are notably restricted. In this study, to overcome these limitations, ursodeoxycholic acid-modified chitosan oligosaccharide (UCOS) was synthesized to encapsulate OA in self-assembled nanomicelles (UCOS-OA). The encapsulation efficiency and drug loading of UCOS-OA were 86 % and 11 %, respectively.

An extracellular electron transfer enhanced electrochemiluminescence aptasensor for analysis.

As a crucial indicator in food and water safety testing, the detection of plays a significant role in maintaining environmental sanitation and promoting public health. Herein, based on the electrochemical activity characteristics of , we established an enhanced electrochemiluminescence aptasensor for analysis. This study presents a new method for accurate identification by utilizing a double aptamer recognition system.

Target-cycling synchronized rolling circle amplification strategy for biosensing Helicobacter pylori DNA.

Helicobacter pylori is closely linked to many gastric diseases such as gastric ulcers and duodenal ulcers. Therefore, biosensing H. pylori has attracted wide attention from both scientists and clinicians.

A CRISPR/Cas12a-assisted array for Helicobacter pylori DNA analysis in saliva.

Helicobacter pylori infection has become a threat to the world populations. This leads to an urgent need of an efficient and convenient approach to accurately diagnose H. pylori infection.

Genome mining of Streptomyces sp. CB00271 as a natural high-producer of β-rubromycin and the resulting discovery of β-rubromycin acid.

β-rubromycin (β-RUB) (1) is an efficient inhibitor of human telomerase possessing a unique spiroketal moiety as a potential pharmacophore and regarded as a promising anticancer drug lead. But the development of (β-RUB) (1) has long been hampered by its low titer and very poor water solubility. By adopting a genome mining strategy, an FAD-dependent monooxygenase RubN involving with the formation of the spiro system was applied as the probe and Streptomyces sp.