[Quality standards of Gleditsiae Spina and its decoction pieces].

In view of the current inadequate standards for Gleditsiae Spina in the Chinese Pharmacopoeia, this study put forward some new items of the quality standards of Gleditsiae Spina. Thin-layer chromatography(TLC) was performed for identification with the reference substance of taxifolin and the reference material of Gleditsiae Spina as the control. According to the general principles of the Chinese Pharmacopoeia(2020 edition, Vol.

Two Trinuclear Cu Complexes: Effect of Phosphonate Ligand on the Magnetic Property and Electrocatalytic Reactivity for Water Oxidation.

Two trinuclear copper phosphonate complexes, [Cu (pda) (tBuPO )]⋅2(Et NH) (1) and [Cu (pda) (PhPO )]⋅2(Et NH) (2), have been synthesized and investigated by a combination of X-ray crystallography, PXRD, magneto- and electrochemistry, EPR, in situ UV-vis spectroelectrochemistry and DLS. The two complexes feature almost identical crystal structures, the anions of which are both supported by pda and tBuPO /PhPO groups, bridging three five-coordinated Cu atoms to form a crown-like structure. This is the first time that trinuclear copper phosphonate complexes have been isolated and characterized.

Small Molecule-Polymer Composite Hole-Transporting Layer for Highly Efficient and Stable Perovskite Solar Cells.

Effective and stable hole-transporting materials (HTMs) are necessary for obtaining excellent planar perovskite solar cells (PSCs). Herein, we reported a solution-processed composite HTM consisting of a polymer poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) and a small-molecule copper phthalocyanine-3,4',4″,4‴-tetrasulfonated acid tetrasodium salt (TS-CuPc) with optimized doping ratios. The composite HTM is crucial for not only enhancing the hole transport and extraction but also improving the perovskite crystallization.

Induced Crystallization of Perovskites by a Perylene Underlayer for High-Performance Solar Cells.

Unlabelled: Perovskite crystallization and interface engineering are regarded as the most crucial factors in achieving high-performance planar heterojunction (PHJ) perovskite solar cells (PSCs). Herein, we demonstrate a thin perylene underlayer via a solution-processable method. By using branch-shaped perylene film as a seed-mediated underlayer, crystalline perovskites with fabric morphology can be formed, which allows for obvious improvement in absorption by a light scattering effect.

MPSS: an integrated database system for surveying a set of proteins.

Summary: We design and implement an integrated database system called 'multi-protein survey system' (MPSS), which provides a platform to retrieve information about many proteins at a time. This system integrates several important and widely used databases including SwissProt, TrEMBL, PDB and InterPro, plus useful references such as GO and KEGG to other databases. Users may submit a group of protein IDs, entry names, SwissProt/TrEMBL accession numbers or GenBank GIs through MPSS' web interface, and obtain protein annotation information from public databases and pre-computed molecular properties speedily.