Detection of aflatoxin B level and revelation of its dynamic accumulation process using visible/near-infrared hyperspectral and microscopic imaging.

Understanding and controlling the dynamic process of aflatoxin B (AFB) accumulation by Aspergillus flavus (A. flavus) remains challenging. In this study, the A.

A Very Atypical Meckel Diverticulum on 99mTcO4- Scintigraphy.

Typical Meckel diverticulum on 99mTcO4- scintigraphy usually appears early in the dynamic imaging in the right lower quadrant of the abdomen, without change of location during the study. We report a case of pathology-proven Meckel diverticulum a 7-year-old boy, which appeared only on the later part of the 99mTcO4- study in the midline upper pelvis which gradually changed location during the study.

Modular access to saturated bioisosteres of anilines via photoelectrochemical decarboxylative C(sp)-N coupling.

In drug development, the substitution of benzene rings in aniline-based drug candidates with saturated bridged bicyclic ring systems often enhances pharmacokinetic properties while preserving biological activity. However, current efforts predominantly focuses on bicyclo[1.1.

A bacterial type III effector hijacks plant ubiquitin proteases to evade degradation.

Gram-negative bacterial pathogens inject effector proteins inside plant cells using a type III secretion system. These effectors manipulate plant cellular functions and suppress the plant immune system in order to promote bacterial proliferation. Despite the fact that bacterial effectors are exogenous threatening proteins potentially exposed to the protein degradation systems inside plant cells, effectors are relative stable and able to perform their virulence functions.

Dynamic Kinetic Resolution-Based Asymmetric Transfer Hydrogenation of Racemic 2-Substituted Quinolines.

The synthesis of chiral tetrahydroquinolines (THQs) has garnered significant interest from medicinal chemists due to their frequent presence as pharmacophores in bioactive compounds. While existing synthetic methods have primarily focused on THQs with single or multiple endocyclic chiral centers, the selective construction of THQs with both and cyclic chiral centers remains a significant challenge that requires further development. This study introduces a dynamic kinetic resolution (DKR)-based transfer hydrogenation of racemic 2-substituted quinolines, which yields structurally novel chiral THQs with consecutive and cyclic chiral centers in excellent yields and stereoselectivities (59 examples, with generally >20:1 dr and >90% ee, up to three consecutive stereocenters).