Solvent-Driven Precise Control of Stacking Configurations in Covalent Organic Frameworks for High-Efficiency Photocatalysis.

Two-dimensional covalent organic frameworks (2D COFs) have emerged as promising photocatalysts due to their high surface areas and precisely tunable physicochemical properties. However, it remains a significant challenge to precisely control over interlayer stacking configurations in 2D COFs, which critically influence charge carrier transport and consequently determine catalytic efficiency. In this study, we demonstrate a solvent-driven strategy to precisely regulate the interlayer stacking configurations of metal-incorporated 2D COFs, successfully achieving both AA eclipsed (COF-TD-AA) and ABC staggered (COF-TD-ABC) configurations.

Polyurethane Elastomer with Unprecedented Thermostability, Long-Cycle Antifatigue, and Ultrafast Self-Healing Capability.

Elastomers play important roles in major equipment, mega facilities, and other advanced applications. However, in practical applications, it is often subjected to extreme environmental conditions, such as repeated cyclic mechanical loading, high temperatures, external impacts, etc. Designing an elastomer with high strength/toughness and resistant to fatigue is particularly challenging.

Bionic fire-resistant chitosan aerogels with the triple stealth functionality: microwaves, infrared and sound.

The complex electromagnetic environment in national defense requires tailored microwave-absorbing materials for different scenarios. In aerospace, lightweight and multifunctional materials are especially important. While aerogels offer low density, they must be further modified to become effective microwave absorbers.

Drug-Coated Balloon Versus Plain Balloon Angioplasty for the Treatment of Dysfunctional Dialysis Access: A Systematic Review and Meta-analysis.

Background: The optimal treatment for dysfunctional dialysis access between drug-coated balloon angioplasty (DCBA) and plain balloon angioplasty (PBA), including standard balloon angioplasty (SBA) and high-pressure balloon angioplasty (HPBA), remains unclear. This study aims to compare the efficacy and safety of DCBA and PBA.

Materials And Methods: A systematic review was conducted to identify randomized controlled trials (RCTs) comparing DCBA and PBA.

Optimal planning with multiple collaborative processing analysis in atmospheric pressure plasma processing for imprinting continuous phase plates.

Large-aperture continuous phase plate (CPP) plays a crucial role in high-power laser systems, spawning a substantial demand for high-volume manufacturing. Given the intricate surface topographies of CPPs, the utilization of multiple tool influence functions (TIFs) during fabrication has been widely recognized as an efficacious means to strike a more favorable balance between machining efficiency and precision. However, it should be noted that even with the same set of multiple TIFs, the collaborative performance can exhibit variations across different designed CPP surfaces, thereby introducing ambiguity into the determination of the optimal processing strategy.

Fabric-based composite membrane for simultaneous emulsion separation and self-powered real-time monitoring.

Membrane separation technology is widely used in emulsion separation due to its high efficiency, energy saving, and environmental protection. However, Membrane contamination issues are not identified on time, which affects separation efficiency and the overall process. Real-time monitoring of the membrane separation process is essential for timely detection of membrane performance degradation and cost savings.

Alterations in whole-brain white matter fiber networks in individuals with autism spectrum disorder after social skills training.

Social skills training (SST) has demonstrated efficacy in improving social deficits in individuals with autism spectrum disorder (ASD), but the underlying neural mechanisms remain unclear. This study investigated alterations in whole-brain white matter network topology after SST in ASD individuals and explored potential correlation with improvements in social interaction deficits. 38 ASD patients aged 12 - 30 years were recruited, including 19 who completed magnetic resonance imaging (MRI) scans and social responsiveness scale (SRS) assessments at both baseline and the endpoint of a 14-week SST (training group) and 19 age-, sex-, and IQ-matched patients who underwent MRI scans and SRS assessment at the same time points but did not receive SST (control group).

Robust Mix-Charged Polyzwitterionic Hydrogels for Ultra-Efficient Atmospheric Water Harvesting and Evaporative Cooling.

Atmospheric water harvesting (AWH) presents great potential in addressing the increasing global challenges in freshwater and energy supply, especially in arid and semi-arid regions. The recent AWH materials focus primarily on maximizing water uptake, while conventional approaches prioritize hygroscopicity at the expense of mechanical integrity, which severely limits their applicability in real-world scenarios. In this study, a novel tunable hygroscopic mix-charged polyzwitterionic hydrogel (THMPH) is reported that achieves dual excellence in outstanding moisture absorbency and mechanical robustness.

Brain morphological changes and associated functional connectivity and lag structures in women with primary dysmenorrhea during the pain-free periovulatory phase.

Primary dysmenorrhea(PDM) is defined as painful menstrual cramps without any evident pathology, exhibiting central nervous system(CNS) sensitivity and functional and structural changes in brain regions responsible for pain perception and modulation. Previous imaging studies primarily focused on functional changes, with only a limited number of studies investigated changes in brain morphology, and these studies generally used small sample sizes. It remains largely unknown whether brain structural changes are coupled with functional changes in patients with PDM, as well as the association between structural alterations and prostaglandin levels.

Hy-DeFake: Hypergraph neural networks for detecting fake news in online social networks.

Nowadays social media is the primary platform for people to obtain news and share information. Combating online fake news has become an urgent task to reduce the damage it causes to society. Existing methods typically improve their fake news detection performances by utilizing textual auxiliary information (such as relevant retweets and comments) or simple structural information (i.

Brain dynamics alterations induced by partial sleep deprivation: An energy landscape study.

Partial sleep deprivation (PSD) alters neural activity of intrinsic brain networks involved in cognitive functions. However, the age-related time-varying properties of large-scale brain functional networks after PSD remain unknown. Our study applied energy landscape analysis to resting-state functional magnetic resonance imaging data to characterize the dominant brain activity patterns in 36 healthy young (19 females, 23.

A linearly programmable strategy for polymer elastomer mechanics.

The mechanical properties of polymer elastomer materials, such as strength and ductility, play important roles in a wide range of applications, including the carrying of major equipment and the construction of infrastructure. However, owing to the widespread disordered physicochemical bonding and unpredictable internal phase separation phenomenon, traditional materials show a complex nonlinear correlation between the material structure and its performance, which makes it difficult to accurately adapt to the performance requirements of various specific application scenarios. In view of the above challenges, this paper innovatively proposes a strategy to achieve linear programmability in the mechanical properties of polymer elastomer materials.

Synthesis of Symmetrical Silane Containing P=O Bonds and Their Passivation of Perovskites.

Perovskite quantum dots (QDs) exhibit unique advantages, including a wide color gamut, narrow full width at half-maximum, cost-effectiveness, and high-efficiency luminescence, positioning them as a significant focus in contemporary optoelectronic research. Nevertheless, the synthesis of QDs often introduces crystal defects, while conventional in situ ligands can detrimentally affect the optoelectronic properties of perovskites. To overcome these challenges, we synthesized a symmetrical silane-based passivating agent containing phosphorus-oxygen double bonds.

Cryptolepine-transferrin nanosystem preparation and the anticancer effects on human malignant glioblastoma U87MG cells.

In this study, the synthesis and characterization of the human transferrin (hTf)-cryptolepine complex nanostructure were performed. The interaction of hTf in the forms of native and nanostructures with cryptolepine was evaluated through various spectroscopic methods, molecular docking, and molecular dynamic (MD) simulation studies. Finally, the anticancer mechanisms of the prepared complex nanostructure on the Human malignant glioblastoma U87MG cell line and normal astrocytes were assessed using cell viability, RT-PCR, and ELISA assays.

MiR-423 Coding Region Genetic Polymorphism rs8067576 May Associate With the Risk of Developing Recurrent Spontaneous Abortion: A Case-Control Study in a Chinese Han Population.

Background: Our previous study has identified an association of a single nucleotide polymorphism (SNP) in the miR-423 gene with recurrent spontaneous abortion (RSA). The presence of additional RSA-linked SNPs in the miR-423 gene remains unclear.

Methods: We evaluated polymorphisms in the coding region of miR-423 in Han Chinese women with unexplained RSA (URSA).

The liquid-vapor water generation characteristics of thermo-responsive polymer based on the multi-scale method.

Thermo-responsive polymer is becoming a potential water purification and water harvesting material. To clarify the water diffusion characteristics, the desorption ratio of liquid water and water vapor for a poly (N-isopropylacrylamide) was researched by the multi-scale method. Firstly, macro and micro structures for the hydrogel with different water content were characterized.

Hydrogen bonding-mediated phase-transition gelatin-based bioadhesives to regulate immune microenvironment for diabetic wound healing.

Gelatin-based biomaterials have emerged as promising candidates for bioadhesives due to their biodegradability and biocompatibility. However, they often face limitations due to the uncontrollable phase transition of gelatin, which is dominated by hydrogen bonds between peptide chains. Here, we developed controllable phase transition gelatin-based (CPTG) bioadhesives by regulating the dynamic balance of hydrogen bonds between the peptide chains using 2-hydroxyethylurea (HU) and punicalagin (PA).

Enhanced Mechanical and Acoustic Properties of Basalt Fiber/Polyurethane Composites by Silane Coupling Agents.

Modified basalt microfiber-reinforced polyurethane elastomer composites were prepared by a semi-prepolymer method with two different silane coupling agents (KH550 and KH560) in this study. Infrared spectroscopy was used to quantify the degree of microphase separation and analyze the formation of hydrogen bonding in polyurethane. The interfacial surface and the morphology of fibers and composites from tensile fracture were examined by a scanning electron microscope.

Abnormal dynamic functional networks during pain-free periods: Resting-state co-activation pattern analysis in primary dysmenorrhea: Abnormal dynamic functional networks in primary dysmenorrhea.

Chronic pain alters the configuration of brain functional networks. Primary dysmenorrhea (PDM) is a form of chronic visceral pain, which has been identified spatial alterations in brain functional networks using static functional connectivity analysis methods. However, the dynamics alterations of brain functional networks during pain-free periovulation phase remain unclear.

Chemodynamic covalent adaptable network-induced robust, self-healing, and degradable fluorescent elastomers for multicolor information encryption.

Elastomers are of great significance in developing smart materials for information encryption, and their unique self-healing and highly flexible properties provide innovative solutions to enhance security and anti-counterfeiting effectiveness. However, challenges remain in the multifunctional combination of mechanical properties, self-healing, degradability, and luminescence of these materials. Herein, a chemodynamic covalent adaptable network (CCAN)-induced robust, self-healing, and degradable fluorescent elastomer is proposed.

[Land use changes and driving forces of landslide area in Tongwei County, Gansu Province, Northwest China from 1985 to 2020.].

Accurately analyzing the type of land use and change characteristics of disaster damage in landslide areas is of great significance to scientifically promote the optimization of regional land use pattern and disaster prevention and mitigation. We analyzed the characteristic parameters of landslides as well as the characteristics and driving factors of land use change from 1985 to 2020 in Tongwei County, Gansu Province, using ALOS DEM data and 1985-2020 land use data, GIS spatial analysis, land-use dynamic attitude, transfer matrix, and Geodetector. The results showed that a total of 1012 landslide samples were identified, characterized by medium elevation, gentle gradient, low elevation difference, short length, and small size.

A dual-nucleophilic ester-induced supramacromolecular fire-proof hydrogel coating for protecting polymers.

Polymer materials are highly vulnerable to fire disaster. However, current research focuses on flame retardancy rather than protection. In this work, two natural extracts of phytic acid (PA) and tannic acid (TA), were successfully compounded via dual-nucleophilic esterification, which facilitated the formation supramolecular hydrogel (T-P-PAA).

Prediction for children with autism spectrum disorder based on digital behavioral features during free play.

Background: Play is an indispensable and meaningful activity in children's daily life. Research has shown that autistic children often exhibit differences in play development. The core traits of autism, such as distinct patterns in social interaction and communication, focused interests, and repetitive behaviors, frequently manifest in their play.

Improvement of Mechanical and Acoustic Characteristics of Halloysite Nanotube-Reinforced Polyurethane Elastomer Composites and Their Applications.

Polyurethane incorporated with nanofillers such as carbon nanotubes, basalt fibers, and clay nanoparticles has presented remarkable potential for improving the performance of the polymeric composites. In this study, the halloysite nanofiller-reinforced polyurethane elastomer composites were prepared via the semi-prepolymer method. The impact of different halloysites (halloysite nanotubes and halloysite nanoplates) in polyurethane composites was investigated.