Hard-Template Synthesis of Inverse Opal Macroporous NiO-SnO Heterojunction for Enhanced Acetone Detection.

Chemiresistive gas sensors have emerged as a promising technology for gas detection, due to their real-time response, low costs, high sensitivity, excellent stability, and facile fabrication. However, the full realization of their potential is currently constrained by the scarcity of sensing materials capable of delivering high selectivity and ultrafast response. In this study, we prepared a three-dimensional inverse opal macroporous SnO doped with NiO (3DIO NiO-SnO).

Anisotropic Growth in Three-Dimensional Plasmonic Networks for Ultrasensitive and Versatile SERS Platforms.

Plasmonic nanostructures with engineered morphologies offer powerful platforms for plasmon-based catalysis and enhanced sensing by amplifying local electromagnetic fields, thereby significantly improving the sensitivity and detection limits of techniques such as surface-enhanced Raman scattering (SERS). However, constructing large-area, flexible, and highly sensitive 3D plasmonic platforms remains a significant challenge. Here, we report a bottom-up strategy to develop hard and flexible three-dimensional (3D) plasmonic platforms at ambient conditions via in situ growth of gold nanowires (AuNWs).

Quality of care for acute ischemic stroke in China during the COVID-19 pandemic: a retrospective study using a National database.

Background: Acute ischemic stroke (AIS) is one of the most time-sensitive diseases, which requires prompt medical services. Delayed treatment and resource scarcity during the coronavirus disease 2019 (COVID-19) pandemic may affect the quality of AIS care and increase the risk of adverse outcomes for patients.

Methods: The study used data from China's National Medical Quality Database spanning from January 1, 2019, to May 31, 2022.

In vitro assessment of the osteogenic and antibacterial capabilities of Mg-MOF particles with encapsulated Levofloxacin within polydopamine.

Infectious bone defect is a condition where infection and bone defect occur simultaneously. The simultaneous achievement of effective antimicrobial management and enhanced bone regeneration continues to present a major hurdle in musculoskeletal therapeutics. To address these limitations, we have developed a novel osteoconductive material, this material (PDA@Mg-MOF-LEV) consists of Magnesium-based metal-organic frameworks (Mg-MOF) particles loaded with the antibiotic levofloxacin (LEV) and coated with polydopamine (PDA), which integrates photothermal therapy with antibiotic delivery to combat bacterial drug resistance and facilitate bone tissue regeneration.

Composition Design of a Novel High-Temperature Titanium Alloy Based on Data Augmentation Machine Learning.

The application fields of high-temperature titanium alloys are mainly concentrated in the aerospace, defense and military industries, such as the high-temperature parts of rocket and aircraft engines, missile cases, tail rudders, etc., which can greatly reduce the weight of aircraft while resisting high temperatures. However, traditional high-temperature titanium alloys containing multiple types of elements (more than six) have a complex impact on the solidification, deformation, and phase transformation processes of the alloys, which greatly increases the difficulty of casting and deformation manufacturing of aerospace and military components.

Azine-Pyridine Frame Generated Covalent Organic Frameworks and Self-Polymerized Films.

Engineering covalent organic frameworks (COFs) into industrializable films with inherent functionalities has remained a major challenge in synthetic chemistry. Here, through developing skeletal azine-pyridine conformation, we present an effectual synthetic frame to convert a family of powdery COFs into self-polymerized COFs films under green and ambient conditions. The active proton tautomerism in our azine-pyridine frame offers a thermochromism, facilitating self-polymerization of large-area COFs films from ca.

Covalent Organic Framework Film with Dynamic C═N─N/C─N═N Conjugated Backbones for Full-Spectrum UV Shielding.

Covalent organic frameworks (COFs) have garnered significant interest for applications in photocatalysis, energy storage, gas storage/separation, and optoelectronics, yet achieving high-quality COF films with high UV-shielding properties still remains a challenge. In this study, transparent COF films are successfully developed and revealed their remarkable UV-shielding capability: effectively blocking 99.9% of UV light while maintaining over 96% visible transmittance.

Effect of chest pain center accreditation on timely reperfusion and in-hospital mortality for STEMI in China.

Existing studies in developing countries on the impact of chest pain center (CPC) accreditation on treatment quality have limited ability to demonstrate causal relationships. This retrospective study aims to utilize the data from national-level database and explore the impact of chest pain center certification on the treatment quality of ST-segment elevation myocardial infarction (STEMI) patients through a more appropriate method. At the hospital level, taking timely reperfusion and in-hospital mortality as outcomes, the impact was evaluated using the Counterfactual Synthetic Difference-in-Differences (CS-DID) method, a statistical technique that allows for the estimation of causal effects by comparing the differences over time between treated and non-treated groups.

Prevalence and molecular epidemiology of the novel equine parasite Theileria haneyi in China.

Background: Equine piroplasmosis (EP), caused by Theileria equi (T. equi) and Babesia caballi (B. caballi), is a tick-borne disease with significant economic impacts on the equine industry.

Chitosan-oligosaccharide alleviates chlorpyrifos-induced biochemical and developmental toxicity and reduces its accumulation in wheat (Triticum aestivum L.).

Chlorpyrifos (CHP) contamination affects agricultural land and poses significant risks to plants and humans. Chitosan-oligosaccharide (COS) enhances plant resilience under stress and boosts the activity of enzymes metabolizing exogenous substances. This study aimed to explore the potential and mechanism of COS in mitigating CHP phytotoxicity and reducing CHP accumulation through both pot and field experiments.

Rearranging spin electrons by axial-ligand-induced hybridization state transition to boost the activity of nickel single-atom-catalysts for electrochemical CO reduction.

Single-atom catalysts (SACs) with M-N active sites show great potential to catalyze the electrochemical CO reduction reaction (eCORR) toward CO. The activity and selectivity of SACs are determined by the local coordination configuration of central metal atoms in M-N sites, which is readily tuned by axial ligands. In this work, we construct axial ligands on two Ni-N-type model SACs, NiPc and Ni-N-C, by adding Cl into the electrolyte taking advantage of the strong chemisorption of Cl over Ni-N.

Bimetallic SERS platform with femtomolar sensitivity for in situ monitoring of catalytic reactions.

We developed a gold-silver bimetallic surface-enhanced Raman scattering (SERS) chip (AuNPs@AuAg NSs island array chip) that combines excellent SERS enhancement with in situ catalytic properties. This platform exhibits superior plasmonic catalytic capabilities, enabling rapid in situ monitoring of redox reactions without the need for chemical reductants. Additionally, under simulated sunlight, the chip achieved effective degradation of methylene blue (MB) molecules, with a removal rate of 95.

On-line adapted islands SERS Chip for quantitatively sensing HS molecules in food spoilage.

Surface-enhanced Raman scattering (SERS) has extraordinary potential in detecting hydrogen sulfide (HS) gas molecules due to its high sensitivity and specificity. However, constructing SERS substrates with strong Raman signal enhancement effects has been a major challenge. In this study, a gold/silver nanostars (Au/Ag NSs) islands chip was developed, leveraging the phenomenon that the SERS enhancement can be significantly improved by patterning plasmonic metals with micro/nanostructures.

Insight into the principles and advanced construction strategies of nanoprobe based multi-targets sensing in food safety.

In real-world food safety incidents, hazards are often diverse and coexist simultaneously. Mature single-target detection technologies, while effective, are insufficient for comprehensively evaluating the overall quality and safety of food. As a result, multi-target detection, which enables a more comprehensive assessment of multiple hazards in food, has emerged as a prominent research focus.

Hybrid Solvent Coupled with Dual-Salt Electrolyte Enables High-Performance Lithium-Metal Batteries.

Lithium-metal batteries (LMBs) are widely recognized as the next-generation energy storage technology due to their high energy density, while their commercialization is hindered by the low Coulombic efficiency and uncontrolled Li dendrite growth. To address these challenges, an anion-rich solvation structure is achieved by a hybrid solvent coupled with a dual-salt electrolyte. The strongly coordinating DTA binds tightly to Li in the first solvation sheath, while the weakly coordinating FEC occupies the second solvation shell.

Salicylic acid mitigates the physiological and biochemistry toxicity of fungicide difenoconazole and reduces its accumulation in wheat (Triticum aestivum L.).

Continuous misuse of difenoconazole (DFZ) results in farmland contamination, posing risks to crops and human health. Salicylic acid (SA) has been shown to enhance plant resistance and reduce pesticide phytotoxicity and accumulation. However, whether SA effectively reduces DFZ phytotoxicity and accumulation and its underlying mechanisms remain poorly understood.

A competitive dual-mode for tetracycline antibiotics sensing based on colorimetry and surface-enhanced Raman scattering.

Tetracycline antibiotics (TCs) are extensively used as broad-spectrum antimicrobials. However, their excessive use and misuse have led to serious accumulation in foods and environments, posing a significant threat to human health. To solve such public issue, we have designed a novel dual-mode detection method, integrating colorimetric sensing with surface-enhanced Raman scattering (SERS) technology, for sensitive and rapid evaluation on TCs.

Lewis Acidic Ionic-Liquid-Catalyzed Radical-Cascade Alkylation/Cyclization of -Alkyl--methacryloyl Benzamides with Alkanes via Visible-Light-Induced Ligand-to-Metal Charge Transfer: Access to Alkylated Isoquinoline-1,3(2,4)-diones.

With the flourishing progress of ligand-to-metal charge transfer (LMCT) photocatalysis, various metals were developed as catalysts to activate abundant alkane feedstocks for the synthesis of functionalized organic compounds. However, to the best of our knowledge, most of the LMCT catalysts are difficult to recover and reuse for the next cycles. Herein, we report a reusable Lewis acidic ionic liquid (LAIL)-catalyzed radical-cascade alkylation/cyclization of -alkyl--methacryloyl benzamides with unactivated alkanes for the synthesis of alkylated isoquinoline-1,3-(2,4)-diketones.

Ru@UiO-66-NH MOFs-Based Dual Emission Ratiometric Fluorescence for Sensitive Sensing of Arginine.

Arginine has been widely applied in the food industry as coloring agents, flavoring agents, and nutritional fortifiers. It is also one of the major components of feed additives. Currently, methods for the highly selective detection of arginine remain absent.

Thiourea and arginine synergistically preserve redox homeostasis and ionic balance for alleviating salinity stress in wheat.

Plant growth regulators are cost-effective and efficient methods for enhancing plant defenses under stress conditions. This study investigates the ability of two plant growth-regulating substances, thiourea (TU) and arginine (Arg), to mitigate salinity stress in wheat. The results show that both TU and Arg, particularly when used together, modify plant growth under salinity stress.

Enhanced antimicrobial activity against oral bacteria Actinomyces viscous by cinnamaldehyde emulsion microencapsulated with cyclodextrin glycosyltransferase-catalyzed products.

Actinomyces viscous (A. viscous) is well documented as a major cariogenic bacterium in the oral cavity and needs to be inhibited and removed timely. Essential oils (EOs) are recognized as secure antibacterial agents for treating oral diseases, but their volatility and insolubility limit their application.

Process indicators outshine outcome measures: assessing hospital quality of care in breast cancer treatment in China.

Reporting the results of quality indicators can narrow the gap in the quality of care between hospitals. While most studies rely on outcome indicators, they may not accurately measure the quality of care. Process indicators are not only strongly associated with treatment outcomes, but are also more sensitive to whether patients are treated accurately, enabling timely intervention.