Enhanced activity and self-regeneration in dynameric cross-linked enzyme nanoaggregates.

Directed evolution, enzyme design, and effective immobilization have been used to improve the catalytic activity. Dynamic polymers offer a promising platform to improve enzyme activity in aqueous solutions. Here, amphiphilic dynamers and lipase self-assemble into nanoparticles of 150- to 600-nanometer diameter, showing remarkable threefold enhancement in catalytic activity.

Strong interaction between plasmon and topological surface state in BiSe/CuS nanowires for solar-driven photothermal applications.

Developing high-performance photothermal materials and unraveling the underlying mechanism are essential for photothermal applications. Here, photothermal performance improved by strong interaction between plasmon and topological surface state (TSS) is demonstrated in BiSe/CuS nanowires. This hybrid, which CuS nanosheets were grown on BiSe nanowires, leverages the plasmon resonance and TSS-induced optical property, generating wide and efficient light absorption.

System metabolic engineering modification of Saccharomyces cerevisiae to increase SAM production.

S-adenosyl-L-methionine (SAM) is an important compound with significant pharmaceutical and nutraceutical applications. Currently, microbial fermentation is dominant in SAM production, which remains challenging due to its complex biosynthetic pathway and insufficient precursor availability. In this study, a multimodule engineering strategy based on CRISPR/Cas9 was established to improve the SAM productivity of Saccharomyces cerevisiae.

Dietary risk factors in Crohn's disease and ulcerative colitis: a cohort study with paired healthy relatives as controls.

Purpose: Conflicting results have been reported on dietary factors in inflammatory bowel diseases (IBDs). Here, we compared the dietary intakes of IBD patients with those of paired healthy relatives (HRs), aiming to minimize the impact of genetic and environmental confounders.

Methods: Patients with Crohn's disease (CD, N = 45) and ulcerative colitis (UC, N = 20), their paired HRs (N = 45, N = 20) and healthy non-relative (HNR, N = 25, N = 55) controls were recruited.

MAZ-mediated LAMA5 transcription activation promotes gastric cancer progression through the STAT3 signaling.

Laminin subunit alpha-5 (LAMA5) has been identified as an oncogene in many cancers, while its role and mechanism in gastric cancer (GC) remain to be explored. Here, the influences of LAMA5 knockdown on GC were investigated in vitro and in vivo. LAMA5 expression was silenced in GC cells alone or in combination with the signal transducer and activator of transcription 3 (STAT3) activator Colivelin, followed by CCK-8, colony formation, EdU, flow cytometry, wound healing assay, and Transwell assay.

Carbon Doping and Oxygen Vacancy-Tungsten Trioxide/CuSnS S-Scheme Heterojunctions for Boosting Visible-Light-Driven Photocatalytic Performance.

Developing ideal photocatalysts for energy regeneration and environmental remediation by combining the advantages of individual semiconductors remains a significant challenge. Herein, tungsten trioxide (WO)/CuSnS S-scheme heterojunction composite photocatalysts are developed. Initially, doped oxygen vacancy (OV) was prepared on two-dimensional WO nanosheets by direct calcination method.

Quantum Well Superlattice Heteronanostructures for Efficient Photocatalytic Hydrogen Evolution.

In this study, we construct a quantum well effect-based two-dimensional Z-scheme superlattice heteronanostructure photocatalyst constructed from hydrogen-bonded porphyrin organic frameworks (HOFs) and carbon nitride. Porphyrin HOFs extend spectral absorption, while their π-conjugation and electron density variations significantly enhance charge separation and exhibit favorable alignment with the energy levels of carbon nitride, thereby enabling efficient charge transfer. Carboxylic acid channels in the HOFs further promote the decomposition of water molecules, thereby boosting hydrogen production.

Effect of spermidine on cuproptosis in follicular granulosa cells.

1. A study was conducted to investigate the effect of spermidine on cuproptosis in granulosa cells of goose ovarian follicles. Granulosa cells from F2-F5 grade follicles of Sichuan white geese were isolated and cultured.

Shape-Controlled Reversible Li Plating-Stripping for Stable and High-Rate Anode-Free Lithium Metal Batteries.

Anode-free lithium metal batteries are promising toward high-energy-density power sources with low-cost, but their practical applications are challenged by poor cycling stability and low rate capability. Herein, a shape change-free and lithium-free anode that well controls the reversible Li plating-stripping is reported, which is composed of a highly-ordered hollow ZnO matrix with a surface-coated lithium-phosphorus-oxynitride (LiPON) layer. The ZnO matrix supplies sufficient cavities and lithiophilic sites to facilitate uniform Li plating/stripping within the hollow cavity, while the LiPON layer maintains stable solid-electrolyte interphase from mechanical and electrochemical damage.

Bio-Inspired Retina by Regulating Ion-Confined Transport in Hydrogels.

The effective and precise processing of visual information by the human eye primarily relies on the diverse contrasting functions achieved through synaptic regulation of ion transport in the retina. Developing a bio-inspired retina that uses ions as information carriers can more accurately replicate retina's natural signal processing capabilities, enabling high-performance machine vision. Herein, an ion-confined transport strategy is proposed to construct a bio-inspired retina by developing artificial synapses with inhibitory and excitatory contrasting functions.

A General Strategy for Exceptionally Robust Conducting Polymer-Based Bioelectrodes with Multimodal Capabilities Through Decoupled Charge Transport Mechanisms.

Bioelectrodes function as a critical interface for signal transduction between living organisms and electronics. Conducting polymers (CPs), particularly poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), are among the most promising materials for bioelectrodes, due to their electrical performance, high compactness, and ease of processing, but often suffer from degradation or de-doping even in some common environments (e.g.

Negative Enthalpy Doping Stabilizes P2-Type Oxides Cathode for High-Performance Sodium-Ion Batteries.

P2-type NaNiMnO (NNMO) as cathode material for sodium-ion batteries (SIBs) largely suffers from continuous accumulation of local stress caused by destructive structural evolution and irreversible oxygen loss upon cycling, leading to rapid capacity degradation. Herein, a strategy of negative enthalpy doping (NED), wherein transition metal (TM) sites are substituted with 0.01 mol each Sn, Sb, Cu, Ti, Mg, and Zn to increase the stability of the TM layers, is proposed.

Distance-Readout Paper-Based Microfluidic Chip with a DNA Hydrogel Valve for AFB1 Detection.

Accurate and rapid aflatoxin B1 (AFB1) detection is essential for ensuring the safety of food supplies. In this paper, we introduce a distance-readout paper-based microfluidic chip (DPMC) that offers a sensitive and reliable method for the detection of AFB1. The DPMC comprises a DNA hydrogel sensitive valve and a paper-based capillary channel.

Phase and Orbital Engineering Effectuating Efficient Adsorption and Catalysis toward High-Energy Lithium-Sulfur Batteries.

The delicate construction of electrocatalysts with high catalytic activity is a strategic method to enhance the kinetics of lithium-sulfur batteries (LSBs). Adjusting the local structure of the catalyst is always crucial for understanding the structure-activity relationship between atomic structure and catalyst performance. Here, in situ induction of electron-deficient B enables phase engineering MoC, realizing the transition from hexagonal (h-MoC) to cubic phase (c-B-MoC).

Electroactive Dressing with Selective Sorption of Exudate Enables Treatment of Complicated Wound.

Exudate management and cell activity enhancement are vital to complicated wound healing. However, current exudate management dressings indiscriminately remove exudate, which is detrimental to cell activity enhancement. Herein, a novel class of electroactive bilayer (cMO/PVA) dressing is developed by constructing manganese oxide nanoneedle-clusters decorated commercial carbon cloth (MO), in situ casting polyvinyl alcohol (PVA) hydrogel, and finally charging.

Socioeconomic Inequalities in PM Exposure and Local Source Contributions at Community Scales Using Hyper-Localized Taxi-Based Mobile Monitoring in Xi'an, China.

The relationship between the socioeconomic status (SES) and PM exposure is rather inconclusive. We employed taxi-based measurements with 30 m resolution to characterize PM exposure with local source contribution (PM adjusted concentration) discerned for 2019 winter and 2020 summer, in Xi'an. A big data set comprising ∼6 × 10 hourly PM measurements and SES data from ∼5000 communities was utilized to examine the socioeconomic inequalities in community-level PM exposure.

Synergistic Bifunctional Covalent Organic Framework for Efficient Photocatalytic CO Reduction and Water Oxidation.

The scientific community has been actively researching artificial photosynthesis to promote ecologically sustainable living and address environmental issues. However, designing photocatalysts with active sites that are effective for both CO reduction and water oxidation remains a significant challenge. Thus, we present the development of a donor-acceptor covalent organic framework (D-A COF), that integrates two distinct metal coordination environments through structure-activity relationships.

Efficient Metabolomics Profiling from Plasma Extracellular Vesicles Enables Accurate Diagnosis of Early Gastric Cancer.

Accurate diagnosis of early gastric cancer is valuable for asymptomatic populations, while current endoscopic examination combined with pathological tissue biopsy often encounters bottlenecks for early-stage cancer and causes pain to patients. Liquid biopsy shows promise for noninvasive diagnosis of early gastric cancer; however, it remains a challenge to achieve accurate diagnosis due to the lack of highly sensitive and specific biomarkers. Herein, we propose a protocol combining metabolomics profiling from plasma extracellular vesicles (EVs) and machine learning to identify the metabolomics discrepancies of early gastric cancer individuals from other populations.

Antioxidant Activities of the Cell-Free Supernatant of a Potential Probiotic Cutibacterium acnes Strain CCSM0331, Isolated From a Healthy Skin.

Objective: Oxidative stress activates the reactive oxygen species (ROS) and excessive ROS can damage skin cells, initiating oxidative stress responses that contribute to inflammation, aging, and other skin issues. As a resident skin bacterium, Cutibacterium acnes (C. acnes) plays an important role in maintaining skin homeostasis and provides antioxidant benefits.

Effect of persulfate dosage on organic degradation using N-doped biochar: Reaction pathway and environmental implications.

Persulfate-based advanced oxidation processes (PS-AOPs) catalyzed by carbon-based catalysts are promising for removing organic pollutants via radical/non-radical pathways. However, the activation efficiency of peroxymonosulfate (PMS) or peroxydisulfate (PDS) usage and the reaction mechanism remain insufficiently understood. In this study, the effects of PMS/PDS dosage on the degradation of bisphenol A (BPA, 10 mg/L) were evaluated using N-doped biochar (N-BC, 0.

Research on the Development of Rural Human Settlement Environment in the Upper Reaches of the Lancang River Based on Ecological Carrying Capacity Constraints.

The development of rural human settlement environments in ecologically sensitive areas, particularly the upper reaches of the Lancang River within the Sanjiangyuan region, has garnered significant attention due to its paramount importance in balancing economic growth and ecological conservation. However, the comprehension of sustainable development strategies within the confines of ecological carrying capacity in these regions remains inadequate. The present study aims to investigate the rural human settlement environment in Nangqen County, situated within the Sanjiangyuan region, and to explore adaptive construction strategies that facilitate harmonious coexistence between human settlements and the natural environment.

Technological Innovation and Trade Orientation as Drivers of Renewable Energy Consumption: Panel Evidence from G7 Economies.

Recent advancements in industrialization have sparked substantial interest among the academic community and policymakers regarding energy consumption. The consumption patterns of distinct energy types seem to be influenced by many national and international factors. In this essence, this study investigates the effects of technological innovation and trade orientation on renewable energy consumption (REC).

Leveraging Large Language Models for Predicting Postoperative Acute Kidney Injury in Elderly Patients.

The objective of this work is to develop a framework based on large language models (LLMs) to predict postoperative acute kidney injury (AKI) outcomes in elderly patients. Our study demonstrates that LLMs have the potential to address the issues of poor generalization and weak interpretability commonly encountered in disease prediction using traditional machine learning (ML) models. AKI is a severe postoperative complication, especially in elderly patients with declining renal function.

Ischaemic and bleeding risk after ST-elevation myocardial infarction in patients with active cancer: a nationwide study.

Aims: Treatment of patients with cancer presenting with ST-elevation myocardial infarction (STEMI) is complex given the increased risk of both thrombotic and major bleeding complications.

Methods And Results: A nationally linked cohort of STEMI patients between January 2005 and March 2019 was obtained from the UK Myocardial Infarction National Audit Project and the UK National Hospital Episode Statistics Admitted Patient Care registries. The primary outcomes were major bleeding and re-infarction at 1 year following admission with STEMI.

hsa_circ_0004846 enhances the malignant phenotype of papillary thyroid carcinoma cells via the miR‑142‑3p/PELI1 axis.

Circular RNAs (circRNAs) are closely associated with human tumorigenesis; however, whether hsa_circ_0004846 serves a role in the progression of papillary thyroid carcinoma (PTC) remains unclear. Therefore, the present study aimed to investigate the effect of hsa_circ_0004846 on PTC. The results demonstrated that circ_0004846 was abnormally upregulated in PTC tissues and thyroid cancer cell lines (BCPAP, TPC-1 and IHH-4).