Ordered porous Mn - Co spinel oxide (CoMnO) with vacancies modulation as efficient electrocatalyst for Li - O battery.

Nonaqueous Li - O battery (LOB) is considered one of the most promising energy storage system due to its ultrahigh theoretical specific capacity (3500 Wh kg). Introducing vacancies in CoMnO catalysts is regarded as an effective strategy to enhance the electrochemical performances of LOB. However, the relation between vacancy types in CoMnO and catalytic performances in the LOB remains ambiguous.

Associations of fruit, whole grain, and total energy intakes with gut microbiome diversity and composition.

Background: The relationship between fruit, whole grain, and total energy consumption and the gut microbiome in the Chinese population remains unclear.

Objective: We investigated the relationship between intakes of fruits, whole grains, and energy, and the diversity and composition of gut microbiota.

Design: This cross-sectional study included 167 subjects aged 40-75 years who underwent colonoscopy at Nankai Hospital in Tianjin, China.

Synergistic wound repair effects of a composite hydrogel for delivering tumor-derived vesicles and -nitrosoglutathione.

Treating chronic wounds requires transition from proinflammatory M1 to anti-inflammatory M2 dominant macrophages. Based on the role of tumor extracellular vesicles (tEVs) in regulating the phenotypic switching from M1 to M2 macrophages, we propose that tEVs may have a beneficial impact on alleviating the overactive inflammatory microenvironment associated with refractory wounds. On the other hand, as a nitric oxide donor, -nitrosoglutathione (GSNO) can regulate inflammation, promote angiogenesis, enhance matrix deposition, and facilitate wound healing.

Facile One-Step Heat Treatment of Cu Foil for Stable Anode-Free Li Metal Batteries.

The anode-free lithium metal battery (AFLMB) is attractive for its ultimate high energy density. However, the poor cycling lifespan caused by the unstable anode interphase and the continuous Li consumption severely limits its practical application. Here, facile one-step heat treatment of the Cu foil current collectors before the cell assembly is proposed to improve the anode interphase during the cycling.

Functional carbon nanodots improve soil quality and tomato tolerance in saline-alkali soils.

High salinity and alkalinity of saline-alkali soil lead to soil deterioration, the subsequent osmotic stress and ion toxicity inhibited crops growth and productivity. In this research, 8 mg kg and 16 mg kg functional carbon nanodots (FCNs) can alleviate the adverse effects of saline-alkali on tomato plant at both seedling and harvest stages, thanks to their up-regulation effects on soil properties and plant physiological processes. On one hand, FCNs stimulate the plant potential of tolerance to saline-alkali and disease resistance through triggering the defense response of antioxidant system, enhancing the osmotic adjustment, promoting the nutrient uptake, transportation and utilization, and up-regulating the photosynthesis, thereby improve tomato growth and productivity in saline-alkali soils.

Structural Engineering of SnS Encapsulated in Carbon Nanoboxes for High-Performance Sodium/Potassium-Ion Batteries Anodes.

Conversion-alloying type anode materials like metal sulfides draw great attention due to their considerable theoretical capacity for sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). However, poor conductivity, severe volume change, and harmful aggregation of the material during charge/discharge lead to unsatisfying electrochemical performance. Herein, a facile and green strategy for yolk-shell structure based on the principle of metal evaporation is proposed.

Bafilomycin A1 Accelerates Chronic Refractory Wound Healing in db/db Mice.

Numerous studies have reported that autophagy plays an important role in chronic wound healing, and enhancement of autophagic activity impairs cutaneous wound healing. The autophagy inhibitor Bafilomycin A1 (Baf A1) inhibits autophagy by preventing the formation of autophagosomes. This study aimed at elucidating the effect of Bafilomycin A1 on chronic refractory wound healing in diabetic mice.

Stable Lithium Anode of Li-O Batteries in a Wet Electrolyte Enabled by a High-Current Treatment.

Rechargeable Li-air (O) batteries have attracted a great deal of attention because of their high theoretical energy density and been regarded as a promising next-generation energy storage technology. Among numerous obstacles to Li-air (O) batteries preventing their use in practical applications, water is a representative impurity for Li-air (O), which could hasten the deterioration of the anode and accelarate the premature death of cells. Here, we report an effective in situ high-current pretreatment process to enhance the cycling performance of Li-O batteries in a wet tetraethylene glycol dimethyl ether-based electrolyte.