Multifunctional Photoactive Janus Nanofibrous Membranes for Unidirectional Water Transport and Remediation of Airborne Pathogens and Pollutants.

Airborne pathogens and pollution control typically necessitate multiple membranes, each specializing in efficient aerosol filtration, moisture regulation, or antimicrobial protection. Integrating all these functions into a single membrane is highly advantageous but remains inherently challenging due to material incompatibility and inevitable performance trade-offs. Here, we present a photoactive Janus nanofibrous membrane for highly efficient air purification, engineered via sequential electrospinning.

Laser-Engraved Micro-Patterned rGO/WPU Composite Structures for Aircraft Applications: Synchronizing Electrothermal De-Icing and Broadband Microwave Transparency.

Aircraft confronting harsh meteorological conditions and radar detection environments during high-altitude flights face significant risks, which can threaten flight safety. This study designs and fabricates a novel Jerusalem cross-inspired Frequency Selective Surface (FSS). Initially, rGO powder with an optimized reduction degree is synthesized as the conductive filler.

Sorption-enhanced dual-ligand MOF-based mixed-matrix membranes for CO separation.

For the first time, a dual-ligand MOF, Al-Fum/Asp, was synthesized by partially replacing fumarate ligands in the Al-Fum framework with l-aspartic acid and incorporated into PIM-1 to fabricate mixed-matrix membranes. Amino groups anchored on Al-Fum/Asp enhance CO-adsorption, enabling the membrane to achieve CO/N separation performance beyond the 2019 Robeson upper bound.

Semiopen Ag@Au Plasmonic Nanotube Arrays Synergizing Molecular Confinement and Multimodal SERS for Lung Cancer Breath Diagnostics.

Exhaled breath analysis offers noninvasive, early lung cancer detection via volatile organic compound (VOC) biomarkers, surpassing blood-based methods. Surface-enhanced Raman spectroscopy (SERS) is ideal for this purpose, combining molecular fingerprint specificity with single-molecule sensitivity. However, conventional SERS substrates face a fundamental limitation: while porous materials such as metal-organic frameworks effectively adsorb VOCs through their subnanometer pores (0.

A ratiometric dual-channel fluorescent probe for selective Zn/Cd sensing: Applications in food quality control, real-time monitoring in living cells, and mice.

Background: Zinc (Zn) and cadmium (Cd) ions are ubiquitous in industrial and daily life. Despite their critical impact on food safety and human health, current probes face significant limitations in simultaneously detecting both ions in complex food matrices.

Results: Herein, we successfully developed a pyrene-based FRET ratiometric fluorescent probe QP for the highly selective detection of Zn and Cd.

The impact of digital marketing literacy on digital marketing strategy to enhance the library patrons' engagement: An application of the TOE framework.

This study investigated an impact of digital marketing literacy (DML) on effective digital marketing strategy (DMS) development and its competence to library patrons' engagement (LPE) in academic libraries. Based on the Technology, Organization Environment (TOE) framework. This study investigated how technological assets, organizational factors, and environmental factors are related to digital marketing performances in academic libraries.

Mechanically robust and highly conductive polyacrylamide/carboxymethyl chitosan organohydrogels via synergistic physical interactions for flexible sensing.

Conductive hydrogels have revolutionized wearable electronics due to their biocompatibility and tunable properties. However, it remains a great challenge for hydrogel-based sensors to maintain both conductivity and mechanical integrity in harsh environments. Synergistic dynamic interactions provide a promising strategy to address this issue.

Boosting the Efficiency of 1.84 eV Wide-Bandgap Perovskites Photovoltaics Beyond 19% via Yb Engineering.

Phase segregation remains one of the most critical challenges limiting the performance and long-term operational stability of wide-bandgap perovskite solar cells (PSCs). This issue is especially pronounced in 1.84 eV wide-bandgap (WBG) perovskites, where severe halide phase segregation leads to compositional heterogeneity and accelerated device degradation.

Forms of chitin-polysaccharide cross-linking in the Coprinopsis cinerea stipe cell wall.

The fungal cell wall provides the cell with enough strength to withstand turgor pressure and keeps adequate plasticity to extend the cell wall size under turgor pressure for cell growth. The cell walls of apical growing hyphae and budding growth yeast have been studied in detailed which share common components of chitin and β-1,3-glucan in their scaffold structures while other polysaccharide components vary on species. In contrast, the cell walls of elongating growth mushroom stipe remains poorly studied.

Enhanced mixing and mass transfer of non-Newtonian fluids for DHA production via Schizochytrium sp. fermentation.

Docosahexaenoic acid (DHA) production via aerobic fermentation of Schizochytrium sp. is a green strategy, and the fermentation broth is a highly viscous, non-Newtonian fluid. In this study, the mixing and mass transfer of non-Newtonian fluids were enhanced using computational fluid dynamics combined with particle image velocimetry.

"Fight Fire with Fire": Trace-Water-Induced Controllable Synthesis of Hydrophobic Armors to Stabilize Metal-Organic Cage-Based Crystalline Frameworks.

Metal-organic cage-based crystalline frameworks (MCFs) are distinguished for high porosity and diverse functionality, while their applications are constrained by degradation in wet environments. Inspired by the "fight fire with fire" method in traditional Chinese medicine, trace-water-induced synthesis of armors is proposed to stabilize MCFs. Water at ppm concentration is enriched on the hydrophilic surface of MCFs, and then polymerizes with diisocyanate under the catalysis of MCFs to form hydrophobic shells.

Cross-Scale Synergy in MOF-Derived Catalysts: Bonded Fe-Co Atom Pairs with Oxygen Ligands Unlocking Enhanced Oxygen Reduction via d-Orbital Modulation.

Integrating cross-scale active sites-single atoms (SA), atom pairs (AP), and nanoparticles-into a unified catalytic system presents a promising strategy for advancing oxygen reduction reaction (ORR), an extremely important process in energy conversion. However, the synergistic interplay among these sites and their mechanistic roles remains poorly understood. Here, we report a novel catalyst (3) featuring Zn, bonded Fe-Co with dual-oxygen ligands, and FeCo nanoparticles, synthesized via pyrolysis of a metal matrix-engineered metal-organic framework (MOF).

Effects of external electric fields on the stability and thermal decomposition pathways of triazole-triazine-based energetic materials: a case study of TTX and its derivatives.

Context: High-nitrogen polycyclic compounds have become a research hotspot in the design of new energetic molecules due to their dense nitrogen content, high positive enthalpy of formation, and good structural stability. In particular, the fused structures of triazole and triazine heterocycles can not only enhance energy output but also possess excellent thermal stability. This study focuses on three triazolotriazine energetic compounds: 3,7-dinitro-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4-amine (TTX), 7-nitro-3-(1H-tetrazol-5-yl)-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4-amine (compound 1), and 3,3'-dinitro-[7,7'-bi[1,2,4]triazolo[5,1-c][1,2,4]triazine]-4,4'-diamine (compound 2).

Synthesis of ()- and ()-4-Hydroxy-2-cyclopenten-1-ones: Total Synthesis of Entecavir, Abacavir, and Carbovir.

A new synthetic procedure was developed for the chiral synthons ()- and ()- that enabled us to complete the asymmetric total synthesis of entecavir, abacavir, and carbovir. This lipase-based procedure holds good potential for developing a green process for the industrial production of ()- and ()- with a high enantiomeric purity. The asymmetric synthesis of entecavir was powered by the highly challenging Michael addition-elimination reaction.

33 Unresolved Questions in Nanoscience and Nanotechnology.

Significant advances in science and engineering often emerge at the intersections of disciplines. Nanoscience and nanotechnology are inherently interdisciplinary, uniting researchers from chemistry, physics, biology, medicine, materials science, and engineering. This convergence has fostered novel ways of thinking and enabled the development of materials, tools, and technologies that have transformed both basic and applied research, as well as how we address critical societal challenges.

Host-Guest Metal Interaction in Cu-In Single Atom Alloy Switching Electrocatalytic CO Reduction Pathway.

The catalytic behavior of alloy electrocatalyst is strongly influenced by host-guest metal interaction, which governs adsorption energy and product selectivity. However, in conventional bimetallic alloy systems, the catalyst composition and the geometric configuration often obscure the identification of critical active sites. Here, we investigate the host-guest metal interaction in Cu-In single atom alloy (SAA) catalysts, demonstrating a remarkable switching of electrochemical CO reduction reaction (CORR) pathway.

Bright Thermally Evaporated Red Perovskite Light-Emitting Diodes Enabled by In Situ Defect Passivation.

Thermally evaporated perovskite light-emitting diodes (PeLEDs) hold great promise for high-quality display applications due to their exceptional large-area uniformity and ease of pixelation and integration. Beyond efficiency considerations, display technologies demanded exceptionally high luminance performance from LEDs. While the brightness of blue and green PeLEDs had progressed rapidly, the performance of red PeLEDs lagged significantly.

The emotional equation: how psychosocial support boosts safety practices in the context of construction 5.0.

Background: Construction 5.0, which emphasizes human-centric technologies and improved collaboration between humans and machines in intelligent construction ecosystems, introduces distinct safety management challenges that necessitate effective emotional resource allocation strategies. This study utilizes job demands-resources theory to investigate how emotional resources are allocated for safety management by examining the relationships among safety practice, psychosocial support, safety participation, and leadership safety behavior.

An in situ fused adhesive with integrated antibacterial and hemostatic functionalities for urgent respiratory fistula sealing and enhanced wound repair.

Respiratory fistulas remain clinically challenging in endoscopic treatment due to the absence of convenient non-compressive sealing materials. Here, we developed an in situ self-fused powder adhesive (PP powder) to address this limitation. This material integrates the adaptive conformability of hydrogel microparticles with the pressure-resistant sealing capability of bulk hydrogels via water-triggered self-assembly.

Phosphorus-32 microspheres: A dual-modality transarterial radioembolization approach for hepatocellular carcinoma therapy and Anti-PD1 immunotherapy potentiation.

Transarterial radioembolization (TARE) is a key therapy for hepatocellular carcinoma (HCC) management and downstaging. While Y microspheres (glass/resin) are widely used, their clinical application is limited by complexity, short half-life, and high costs. Thus, novel radionuclide microspheres are crucial.

Analysis and intelligent prediction of domino effect accidents in chemical storage tanks with a focus on accident chain length.

The compact arrangement of chemical storage tanks significantly increases the occurrence probability of domino effect accidents. The accident chain length, a critical parameter for assessing accident severity, enables rapid comprehension of potential accident impacts and serves as a foundation for constructing accident scenarios in domino effect risk assessment. This study centers on domino effect accidents within chemical storage tanks and conducting a detailed analysis of factors influencing the accident chain length.

Recent Advances in Microenvironment Engineering for Selective Electrochemical C-N Coupling.

Electrochemical C-N coupling via the coreduction of CO and nitrogenous species (N/NO) presents a sustainable route to synthesize value-added C-N compounds under mild conditions. However, competing pathways and mismatched intermediate kinetics hinder the selective formation of products like urea, amines, and amides. Recent advances reveal that rational modulation of the electrochemical microenvironment can effectively steer reaction pathways and stabilize coupling-relevant intermediates.

Restoring the enteric neuroimmune crosstalk via hollow mesoporous polydopamine nanoparticles in inflammatory bowel disease treatment.

The enteric neuro-immune crosstalk is considered crucial for maintaining intestinal mucosal immune homeostasis, offering a promising way to achieve clinical cure of inflammatory bowel disease (IBD). However, neuron loss, disruption of the enteric nervous system, and impaired acetylcholine (ACh) biosynthesis in the intestine are prevalent in IBD patients, which severely disrupts enteric neuroimmune function. Exploring effective treatments for the disease has become the research hotspot and the goal of current IBD research.

Rational Design of Antimony-Based Zintl Clusters: Unveiling Unconventional Bonding and Architectures.

ConspectusThe past decade has witnessed rapid growth in the synthesis of main-group element clusters, driven by advances in the design of Zintl phase precursors and their integration with organometallic reagents. These strategies have unlocked unprecedented structural motifs and bonding patterns, greatly enriching the landscape of main-group cluster chemistry. Among them, antimony-based clusters stand out for their diverse architectures and unique electronic properties, serving as ideal models to explore metalloid aromaticity, multicenter bonding, and unconventional Sb-Sb or Sb-metal interactions.

Divergent Synthesis of -Difluoro-2-oxabicyclo[2.1.1]hexanes Enabled by 1,3-Oxygen Rearrangement.

We present a visible light photocatalytic strategy for efficient synthesis of -difluoro-2-oxabicyclo[2.1.1]hexanes through cross [2 + 2] cyclization of γ,γ- and α,α-difluoroallyl vinyl ethers, which represent a class of novel hybrid bioisosteres.