Preparation and Recognition Performance of Fleroxacin Ratio Fluorescent Paper-based Sensor Based On Molecularly Imprinted Polymer.

The pervasive concern regarding veterinary drug residues in food necessitates advanced detection solutions, particularly addressing limitations of conventional methods reliant on large-scale instrumentation that incur prolonged analysis duration, complex sample preparation, and lack of real-time on-site capability. A portable "single response-on" molecularly imprinted ratiometric fluorescent paper-based sensor was developed for quantifying fleroxacin (FLX) residues in animal-derived foods, wherein B, N-co-doped MXene quantum dot (B, N-MQD) was synthesized and combined with BCP-Eu as dual-emission fluorophores, while FLX- molecularly imprinted polymer (FLX-MIP) was engineered using functionalized Nano-SiO as the carrier. Concentration-dependent fluorescence enhancement at 574 nm was exhibited with invariant reference signal at 411 nm, achieving a 36-fold lower detection limit (0.

Recyclable Cu-Catalyzed -Methylation and C5-Methylthiomethylation of Isatins with DMSO.

An unprecedented recyclable system of copper-catalyzed C-C/N coupling of isatins and DMSO without any oxidant and acidic/basic additive has been unlocked. The -isatins occur tandem -methylation and C5-methylthiomethylation in order, while -substituted isatins proceed C5-methylthiomethylation only. DMSO serves as Me and MeSCH sources as well as the solvent.

Bifurcations of a modified Leslie-Gower predator-prey model with fear, Allee effect and hunting cooperation strategy.

The fear preoften leads to changes in the physiological characteristics of the prey. Different stages of prey exhibit different physiological behaviours, such as susceptibility to predator risk, which often leads to Allee effect. Taking into account the influence of these factors, a modified Leslie-Gower predator-prey model with Allee effect and stage structure is constructed in this paper.

Isomorphism of LiVO/NaVO and Its Li Transport Behavior.

Distinct physical and chemical properties are shown for the bulk and surface of the electrodes, resulting in different ion diffusion behaviors. The knock-off mechanism for multi-ion cooperative transport of LiVO exhibits excellent solid diffusion kinetics, but the slow Li insertion at the electrode/solution interface becomes the rate-controlling step of the reaction. The direct-hopping mechanism is more favorable for Li insertion reactions at the electrode/solution interface.

Mechanistic Study of Selective Adsorption of As(V) by a Surface Ion-Imprinted Diatomite-Based Adsorbent.

In this study, a novel As(V) ion-imprinted and 4-picolinic acid (4-PA)-grafted porous diatomite (DE)-based adsorbent (As(V)-IID) was prepared by using the surface ion imprinting technique. The results of the selective adsorption experiment show that the adsorption capacity of As(V) on As(V)-IID reaches 62.78 mg/g in a solution with an initial As(V) concentration of 25 mg/L and a pH value that is near pH 4.

The effect of psychological intervention combined with standard pharmacological therapy in patients with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS): A randomized controlled trial.

Background: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) often coexists with anxiety and depression. This study assessed whether adding psychological intervention (PI) to standard pharmacotherapy improves patient outcomes.

Methods: One hundred sixty eight adult patients diagnosed with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) were recruited for this study.

Research progress on design strategies of hemicyanine-based fluorescent probes and their applications in environmental and food analysis.

With the increasing emphasis on environmental safety, food inspection, and plant physiological functions, the development of high-performance fluorescent probes capable of highly sensitive, specific, rapid, and visual detection of target analytes has become a focal point in current research. Hemicyanine groups are widely utilized in the design of organic small-molecule fluorophores due to their low cost, structural stability, and ease of chemical modification. Through simple structural adjustments, the photoluminescent properties of hemicyanine-based fluorophores can be significantly enhanced, enabling strong signal output and maintaining stable fluorescence intensity across various solvents and pH conditions-features that make them particularly suitable for complex biological and chemical environments.

Enhanced Photoelectrochemical Performance of BiVO Photoanodes Co-Modified with Borate and NiFeO.

Despite significant progress in photoelectrochemical (PEC) water splitting, high fabrication costs and limited efficiency of photoanodes hinder practical applications. Bismuth vanadate (BiVO), with its low cost, non-toxicity, and suitable band structure, is a promising photoanode material but suffers from poor charge transport, sluggish surface kinetics, and photocorrosion. In this study, porous monoclinic BiVO films are fabricated via a simplified successive ionic layer adsorption and reaction (SILAR) method, followed by borate treatment and PEC deposition of NiFeO.

Boosting peroxidase-like activity of single-atom nanozymes sulfur-doped Fe-N-C sites for rapid rhodamine B degradation at neutral pH.

Rhodamine B (RhB), a persistent carcinogenic dye, poses critical challenges for environmental remediation. Herein, we report a sulfur-doped single-atom nanozyme (FeNC-SO SAzyme) with boosted peroxidase-mimetic activity for rapid RhB degradation. FeNC-SO, synthesized pyrolysis and sulfur modification, features a sulfur-doped carbon network with atomically dispersed Fe-N-C-S active sites.

Chinese crop diseases and pests named entity recognition based on variational information bottleneck and feature enhancement.

Chinese crop diseases and pests named entity recognition (CCDP-NER) is a critical step in extracting domain-specific information in the field of crop diseases and pests, playing a significant role in promoting agricultural informatization. To address challenges such as noisy data, erroneous annotations, and ambiguous entity boundaries in the crop disease and pest domain, this study proposes a deep learning-based CCDP-NER model. The model employs a bidirectional gated recurrent Unit (BiGRU) to capture long-range semantic dependencies and integrates multi-level dilated convolutional neural networks (DCNNs) to extract local fine-grained features, thereby constructing a global-local collaborative representation.

Tunable Magnetoresistive Gas Sensing Enabled by La-Deficient LaFeO.

Resistive sensors are widely used to detect gases, but integrating magnetoresistive effects for enhanced selectivity and sensitivity remains largely unexplored. Here we have investigated several magnetic materials in a metal oxide semiconductor (MOS) sensor, showing that iron oxides can exhibit both positive and negative magnetoresponses at relatively low operating temperatures (120-160 °C), with no simple correlation between magnetoresponse and bulk magnetization, leading to the discovery of LaFeO as an outstanding material for magnetoresistive gas sensing. Under a 0.

Acid-Modified Biochar Derived from Agricultural Waste for Efficiently Capturing Low-Concentration Nitrous Oxide (NO): Mechanisms and Environmental Implications.

Low-concentration NO (≤5%) emissions from agricultural fields and waste treatment facilities in China reach 7.333 × 10 t annually, making them a significant but inadequately controlled contributor to global warming. Agricultural wastes were selected as precursors to prepare biochar, including pecan shell (SH), poplar sawdust (JM), wheat straw (XM), and corn straw (YM), which were subsequently acid-modified with 0.

Characterization of BpLPMO10 from Bacillus paralicheniformis: A bi-functional AA10 LPMO with chitin-preferential activity and strong exo-enzyme synergy.

LPMOs are copper metalloenzymes that facilitate the conversion of challenging polysaccharides like cellulose and chitin. This study focuses on the AA10 family LPMO gene (BpLPMO10) cloned from the chitin-degrading bacterium Bacillus paralicheniformis and expressed in Escherichia coli. Using the 2,6-DMP assay, the optimal reaction conditions for BpLPMO10 were determined to be pH 8.

A biologically-based regulatory method for the lignin phenol monomers to specific components and electron transfer capacity of humic substances.

The lignin was degraded into phenol and then oxidized into quinones of chemical structure of humic substances (HS) in the polyphenol pathway, and it was considered a crucial process contributing to redox capabilities of HS. However, the microbial formation and degradation of lignin phenol monomers, and their effects on the humification process remains unclear. In this study, p-hydroxybenzoic acid, syringic acid), 4-coumaric acid, and ferulic acid were found to significantly influenced the electron transfer capacity (ETC) of HS.

A review of anti-aging mechanisms of proteins, macropeptides, and related prenylated derivatives.

The process of aging is understood to be associated with the presence of oxidative damage to cells. The development of synthetic prenylated proteins for therapeutic purposes has been a subject of research and development for several decades. The present review encompasses information regarding natural and synthetic prenylated proteins and macropeptides, in addition to the anti-aging effects of these isoprenoids and their underlying mechanisms.

Integrating proton co-storage in iron-based anodes for high-performance nickel-iron batteries.

The growing demand for sustainable energy solutions has intensified the need for efficient, cost-effective, and scalable energy storage technologies. Among candidate systems, nickel‑iron (Ni-Fe) batteries stand out due to their low cost, abundant materials, and inherent safety, offer significant potential for large-scale applications. However, their practical application is hindered by limited energy density and inefficient charge-storage mechanisms.

Highly Selective and Sensitive Resistive and Schottky Diode Sensor for Nitrogen-Containing Gas Based on Monolayer Penta-HgO.

Highly sensitive and reusable sensors for detecting harmful gas molecules are particularly important to reduce their harmful impacts on human health and the natural environment. Based on the density functional theory calculations, the adsorption properties and sensing performances of the monolayer penta-HgO material for nitrogen-containing toxic gas molecules (NO, NH, NO, and NO) were thoroughly explored. The adsorptions of NH, NO, and NO (NO) on the monolayer penta-HgO substrate are characterized by high (low) adsorption energy, significant (little) charge transfer, and short (long) adsorption distance, showing chemisorption (physisorption) properties.

Enhanced Oxygen Ion Conductivity and Ionic Conduction Mechanistic Visualization in Tetragonal Zircon-Type PrSrVO.

Oxide-ion conductors based on tetrahedral anion-related oxides have attracted considerable attention due to their high oxygen-ion conductivity and potential applications in clean energy devices, such as solid-state fuel cells. In this study, we report the improvement of oxide-ion conductivity by Sr doping in isolated tetrahedral zircon-type PrVO. It is found that PrSrVO features the highest oxide-ion conductivity of 2.

Tuning the rate performance in O2-type layered manganese-based oxides through cobalt doping.

Lithium-rich manganese-based cathode materials Li[LiNiMn]O have received considerable attention. However, severe voltage decay and structural distortion of O3-type layered oxides hinder further practical applications. O2-type layered cathode materials can restrict the movements of transition metals and effectively suppress the voltage decay.

[Pollution Assessment and Risk Area Delineation of Potential Toxic Elements in Cultivated Soils in Wujiang River Watershed of Guizhou Province Based on Bayesian Maximum Entropy Theory].

The assessment of the extent of contamination of potentially toxic elements （PTE） in arable soils and the delineation of high-risk zones are crucial steps in the development of effective prevention and control strategies. A large-scale investigation of soil PTE contents in farmland （cornfields and rice fields） in the Wujiang River Basin, Guizhou Province was conducted to explore the contamination degrees and risk area distribution through the influence index of the comprehensive quality of soil （IICQs） and Bayesian maximum entropy （BME） theory. The results showed that the concentrations of As, Cd, and Cu in corn soil and the concentrations of Cd, Hg, and Cu in paddy soil exceeded the risk screening values in 29.

A colorimetric and ratiometric fluorescent probe for metabisulfite detection and its application in food safety analysis.

Metabisulfite (S₂O₅) plays a critical role in the chemical, pharmaceutical, and food industries. However, excessive residues or prolonged exposure to S₂O₅ can pose significant risks to human health. To enable rapid, effective, and convenient detection of its content, a colorimetric and ratiometric fluorescent probe (CQ1) based on the coumarin-quinoline scaffold has been developed.

Electrochemiluminescence immunosensor for thiamethoxam detection using NiFe-LDH-loaded Cu single-atom catalysts.

An ECL signal amplification strategy is introduced leveraging a multimetallic catalytic amplification effect. Nickel-iron bimetallic oxide compounds were synthesised and loaded with Cu SAs catalysts on their surface to create nickel-iron layered double hydroxides/copper single atoms (NiFe-LDHs/Cu-SAs) with robust catalytic properties. These NiFe-LDHs/Cu-SAs were employed as signal amplification elements to modify gold electrodes.

Study on the mechanism of Fuzi Lizhong decoction in the treatment of colorectal cancer of spleen kidney deficiency from the perspective of intestinal flora and hypoxia inducible factor-1α signalling pathway.

Objective: To evaluate the effect of Fuzi Lizhong decoction on intestinal flora, serum inflammatory factors, and hypoxia inducible factor-1α (HIF-1α) in patients with colorectal cancer associated with spleen and kidney deficiency.

Methods: A total of 100 patients diagnosed with advanced colorectal cancer were randomly divided into two groups: a control group (CON, 50) and a Traditional Chinese Medicine (TCM) group ( 50). The control group received treatment with the Capecitabine + Oxaliplatin (CAPEOX) regimen, while the TCM group received the same regimen along with Fuzi Lizhong decoction for six weeks.

Deriving Early Citrus Fruit Yield Estimation by Combining Multiple Growing Period Data and Improved YOLOv8 Modeling.

Early crop yield prediction is a major challenge in precision agriculture, and efficient and rapid yield prediction is highly important for sustainable fruit production. The accurate detection of major fruit characteristics, including flowering, green fruiting, and ripening stages, is crucial for early yield estimation. Currently, most crop yield estimation studies based on the YOLO model are only conducted during a single stage of maturity.

Mild Cu-Catalyzed Nitrogen-Iodine Exchange Strategy for the Synthesis of Non-Symmetric ,-Bicarbazole Scaffolds Using Cyclic Iodoniums.

Copper/organic base-mediated dual -arylation of -amino carbazoles with cyclic diaryliodonium salts at room temperature has been unlocked, yielding nonsymmetric ,-bicarbazoles with a broad scope, especially tolerating all halogens (F, Cl, Br, and I). Besides, -amino indole, pyrrole, piperidine, morpholine, and piperazines all proved to be suitable coupling partners. The bottom-up access from inorganic hydrazine and cyclic iodoniums through double N-I exchange is also presented.