High-Entropy Alloy Electrocatalysts Bidirectionally Promote Lithium Polysulfide Conversions for Long-Cycle-Life Lithium-Sulfur Batteries.

High-entropy alloys (HEAs) have attracted considerable attention, owing to their exceptional characteristics and high configurational entropy. Recent findings demonstrated that incorporating HEAs into sulfur cathodes can alleviate the shuttling effect of lithium polysulfides (LiPSs) and accelerate their redox reactions. Herein, we synthesized nano PtCuFeCoNi HEAs on hollow carbons (HCs; denoted as HEA/HC) by a facile pyrolysis strategy.

Lasting Effects of Intrauterine Exposure to Preeclampsia on Offspring and the Underlying Mechanism.

Preeclampsia is a common pregnancy complication which can have adverse impact on both mother and baby. In addition to the short term effects, a large body of epidemiological evidence has found preeclampsia can exert long-lasting effects on mother and offspring. Studies suggest that offspring exposed to preeclampsia are at a higher risk of developing cardiovascular, metabolic, and neurological diseases, as well as other diseases.

The role of immunity in the pathogenesis and development of pre-eclampsia.

Pre-eclampsia (PE) is a leading cause of maternal and perinatal morbidity and mortality; however, the aetiology of PE still remains unclear. It has been widely accepted that the disease results from insufficient spiral artery remodelling, leading to placental ischaemia and the release of a variety of factors. In recent decades, a large number of studies have observed an abnormal immune response in preeclamptic women and studies of both patients and animal models have shown alterations in the function or the number of immune agents.

[Exploration of Ophiopogon japonicus new parts for medicine material].

Objective: To explore the contents of polysaccharides and flavones in different parts of Ophiopogon japonicus for instead of Radix Ophiopgonis as medisine materials.

Methods: The content of polysaccharides was quantified by colorimetry, content of total flavones was determined by spectrophotometry.

Results: The content of total flavones in the leaf was distinctly higher than that in the root tuber.