Wet Photolithography From Hydrogen Abstraction of a Quasi-Orthogonal Aggregation-Induced Emitter.

A new aggregation-induced emission (AIE) luminogen is obtained by dimerizing acridin-9(10H)-one (Ac), an aggregation-caused quenching (ACQ) effect monomer via an N─N bond and forming 9H,9'H-[10,10'-biacridine]-9,9'-dione (DiAc) with D symmetry. The quenching of DiAc in solution is ascribed to the enhanced basicity promoting hydrogen bonding and then a hydrogen abstraction (HA) reaction and/or an unallowed transition in frontier orbitals with the same symmetry facilitating intersystem crossing. It is found that emissive Ac is one product of the non-emissive DiAc solution in the HA reaction activated by UV irradiation.

Moderate Active Hydrogen Generation over a NiP/CoP Heterostructure for One-Step Electrosynthesizing of Azobenzene with High Selectivity.

Through hydrogenation and N-N coupling, azobenzene can be produced via highly selective electrocatalytic nitrobenzene reduction, offering a mild, cost-effective, and sustainable industrial route. Inspired by the density functional theory calculations, the introduction of H* active NiP into CoP, which reduces the water dissociation energy barrier, optimizes H* adsorption, and moderates key intermediates' adsorption, is expected to assist its hydrogenation ability for one-step electrosynthesizing azobenzene. A self-supported NiCo@NiP/CoP nanorod array electrode was synthesized, featuring NiCo alloy nanoparticles within a NiP/CoP shell.

Regulation of important natural products biosynthesis by WRKY transcription factors in plants.

Background: Plants produce abundant natural products, among which are species-specific and diversified secondary metabolites that are essential for growth and development, as well as adaptation to adversity and ecology. Moreover, these secondary metabolites are extensively utilized in pharmaceuticals, fragrances, industrial materials, and more. WRKY transcription factors (TFs), as a family of TFs unique to plants, have significant functions in many plant life activities.

Heavy mechanical force decelerates orthodontic tooth movement via Piezo1-induced mitochondrial calcium down-regulation.

Orthodontic tooth movement (OTM) depends on periodontal ligament cells (PDLCs), which sense biomechanical stimuli and initiate alveolar bone remodeling. Light (optimal) forces accelerate OTM, whereas heavy forces decelerate it. However, the mechanisms by which PDLCs sense biomechanical stimuli and affect osteoclastic activities under different mechanical forces (MFs) remain unclear.