236 metagenome-assembled microbial genomes from rivers along a latitudinal gradient.

Rivers are dynamic ecosystems that play a crucial role in supporting microbial diversity and sustaining a wide range of ecological functions. Here, we used metagenomic sequencing datasets of channel sediments, riparian bulk soils, and riparian rhizosphere soils to construct metagenome-assembled genomes (MAGs) from 30 river wetlands along a latitudinal gradient in China. We identified 236 MAGs with completeness ≥ 50% and contamination ≤ 10%, including 225 bacteria and 11 archaea.

Research Progress on Ultrahigh-Temperature Ceramics Modified C/C Composites.

C/C composites have excellent high-temperature mechanical properties and are one of the most promising high-temperature structural materials. However, poor oxidation and ablation resistance of the C/C composites in high-temperature oxygen-containing environments seriously hinder their practical applications. Ultrahigh-temperature ceramics (UHTCs)-modified C/C composites (C/C-UHTCs) are considered to be the most effective way to improve the oxidation and ablation resistance of C/C composites, demonstrating significant application prospects in aerospace and related fields.

Silicon-Based Polymer-Derived Ceramics as Anode Materials in Lithium-Ion Batteries.

In most commercial lithium-ion batteries, graphite remains the primary anode material. However, its theoretical specific capacity is only 372 mAh∙g, which falls short of meeting the demands of high-performance electronic devices. Silicon anodes, despite boasting an ultra-high theoretical specific capacity of 4200 mAh∙g, suffer from significant volume expansion (>300%) during cycling, leading to severe capacity fade and limiting their commercial viability.

Lakeshore plant removal intensifies microbial phosphorus limitation and weakens multinutrient cycling-bacterial diversity relationship.

Rational management of lakeshore plants can achieve ecological protection and restoration purposes for lakes, whereas influences of lakeshore plant removal on microbial nutrient limitation and linkage between biodiversity and multinutrient cycling (MNC) remain largely unclear. Molecular and statistical analyses were adopted to reveal responses of microbial nutrient limitation and MNC to lakeshore plant removal as well as bacterial adaptability to environmental changes. Activities of sediment enzymes targeting carbon, nitrogen, and phosphorus cycles notably decreased after plant removal, and lakeshore plant removal rather than seasonal variation showed larger effects on enzyme activities, ecoenzymatic stoichiometric parameters (i.

Phosphorus-Induced Electron Pump Enhances O Activation for Electrocatalytic HO Production.

Electrochemical two-electron oxygen reduction reaction (2e ORR) to produce hydrogen peroxide (HO) is attractive, but poor HO selectivity and activity need to be overcome. Herein, a phosphorus-induced electron pump is demonstrated. The HO selectivity reaches >90% (93.

Soil alkaline phosphatase-encoding bacteria relate closely to microbial biomass phosphorus in changing environments.

Microbial biomass phosphorus (P) is an important P pool and its turnover can supplement the P pool in soil solution promoting plant productivity, and ubiquitously distributed alkaline phosphatase-encoding bacteria (PEB) containing the phoD gene mediate organic P mineralization. Yet, linkage between soil PEB and P remains poorly understood, particularly in changing environments. Molecular and statistical tools were adopted in both environmental change simulation experiments and a field investigation to unveil the linkage between soil P and PEB.

FcRn-targeted Pluronic F127-Poly (L-lactic Acid) polymersomes for oral insulin delivery.

The intestinal epithelium barrier is one of the main factors limiting the bioavailability of oral insulin delivery systems. Neonatal Fc (fragment crystallizable) receptor (FcRn) is highly expressed in the intestinal epithelium, which can bind specifically to the Fc fragments of IgG in a pH-dependent manner and thus improve the transepithelial transport of carriers modified by IgG Fc or Fc domain-binding peptides (FcBP) ligand. Thus, FcBP ligand was attached to Pluronic F127-polylactic acid polymersomes by using the biotin-avidin bridging technology to obtain FcRn-targeted FcBP-F127-PLA polymersomes.

A biomimetic nanomedicine alleviates liver transplant-related biliary injury by sequentially inhibiting oxidative stress and regulating macrophage polarization via Nrf-2/HO-1 and JNK pathways.

Liver transplantation is an effective method for treating end-stage liver disease. However, 10-20 % of liver transplantation patients develop biliary injury, the main cause of which is ischemia-reperfusion injury (IRI), which consists of oxidative stress injury in the early stage and inflammatory injury in the advanced stage. Biliary injury seriously affects patient outcomes and even leads to mortality, and there are few effective treatments for IRI.

Development of an alkaliptosis-related lncRNA risk model and immunotherapy target analysis in lung adenocarcinoma.

Background: Lung cancer has the highest mortality rate among all cancers worldwide. Alkaliptosis is characterized by a pH-dependent form of regulated cell death. In this study, we constructed a model related to alkaliptosis-associated long non-coding RNAs (lncRNAs) and developed a prognosis-related framework, followed by the identification of potential therapeutic drugs.

Application of scalp graft in the correction of severe alar retraction.

Background: Alar retraction is characterized by excessive nostril exposure and presents a significant challenge in rhinoplasty, particularly in cases of severe alar retraction. This study aimed to introduce a novel treatment approach for severe alar retraction using a scalp graft.

Methods: A retrospective study was conducted on 18 patients with severe alar retraction, defined by the extent of nostril exposure in the frontal view relative to the facial surface, who underwent revision rhinoplasty between May 2022 and May 2023.

Global meta-analysis deciphering ecological restoration performance of dredging: Divergent variabilities of pollutants and hydrobiontes.

Global "Sustainable Development Goals" propose ambitious targets to protect water resource and provide clean water, whereas comprehensive understanding of restoration performance and ecological mechanisms are lacking for dredging adopted for purifying polluted waterbodies and maintaining navigation channels. Here, we conducted a global meta-analysis to estimate ecological restoration consequence of dredging as pollution mitigation and navigation channel maintenance measures using a dataset compiled from 191 articles covering 696 studies and 84 environmental and ecological parameters (e.g.

Investigation on the Hydrate Blockage Avoidance Performance of Two Anti-Agglomerants and Their Mixture with PVP.

The hydrate blockage avoidance performance of two anti-agglomerants (coconut amidopropyl dimethylamine, propylene bis (octadecylamidopropyl dimethylammonium chloride)) and their mixtures with polyvinylpyrrolidone (PVP) was tested in a high-pressure rocking cell apparatus. The effect of gas-liquid ratio, water content and PVP concentration were analyzed. A method for evaluating the kinetic inhibiting and anti-agglomerating performance of hydrate inhibitors was established.

Effects of Temperature and Water Vapor Content on Microstructure, Mechanical Properties and Corrosion Behavior of C/C-SiC Composites.

Carbon-fiber-reinforced carbon and silicon carbide (C/C-SiC) composites were prepared using chemical vapor infiltration (CVI) combined with reactive melt infiltration (RMI). The microstructure and flexural properties of C/C-SiC composites after oxidation in different temperature water vapor environments were studied. The results indicate that the difficulty of oxidation in water vapor can be ranked from easy to difficult in the following order: carbon fiber (CF), pyrolytic carbon (PyC), and ceramic phase.

Simulation study of flexible wavefront shaping in Smith-Purcell radiation with aperiodic metagratings.

Smith-Purcell radiation (SPR) is a versatile platform for finely tuning nanoscale light across a broad spectral range. This study introduces a theoretical approach for shaping SPR wavefronts using aperiodic metagratings (AMGs). The AMGs consist of arrays of identical metal nano-rods (MNRs), with each MNR's spatial position precisely adjustable.

Species pool and local assembly processes drive β diversity of ammonia-oxidizing and denitrifying microbial communities in rivers along a latitudinal gradient.

Both regional species pool and local community assembly mechanism drive the microbial diversity patterns across geographical gradients. However, little has been done to separate their effects on the β diversity patterns of microbial communities involved in nitrogen (N) cycling in river ecosystems. Here, we use high-throughput sequencing of the archaeal amoA, bacterial amoA, nirK, and nirS genes, null model, and neutral community model to distinguish the relative importance of species pool and local assembly processes for ammonia-oxidizing and denitrifying communities in river wetlands along a latitudinal gradient in eastern China.

Metagenomic insights into nitrogen-cycling microbial communities and their relationships with nitrogen removal potential in the Yangtze River.

Nitrogen (N) pollution is a major threat to river ecosystems worldwide. Elucidating the community structure of N-cycling microorganisms in rivers is essential to understanding how ecosystem processes and functions will respond to increasing N inputs. However, previous studies generally focus on limited functional genes through amplicon sequencing or quantitative PCR techniques and cannot cover all N-cycling microorganisms.

A Water Polysaccharide-Protein Complex from Grifola frondosa Inhibit the Growth of Subcutaneous but Not Peritoneal Colon Tumor under Fasting Condition.

Scope: Grifola frondosa has been shown to induce immune modulatory, modulate autophagy, and apoptosis in cancer cells. However, little is known about its potential for managing tumor progression as an adjunct to nutrient restriction.

Methods And Results: Water extract produces a G.