In Situ Growth of MAPbBr Quantum Dots in Crosslinked PMMA for Wide-Gamut Display Backlights.

Methylammonium lead bromide perovskite (MAPbBr) quantum dots (QDs) have emerged as promising candidates for next-generation optoelectronic applications owing to their exceptional photoluminescent properties. However, their practical applications face significant challenges due to inherent instability issues. Herein, a solvent-induced in situ crystallization method is presented to encapsulate MAPbBr QDs within a crosslinked (cl-) polymethyl methacrylate (PMMA) network.

Bioassembly of Myoblast Spheroids in Electrofibrillated Scaffolds for 3D Muscle Tissue Biofabrication.

One of the key challenges in tissue engineering is recreating the extracellular matrix (ECM), which is essential for cell function, especially in anisotropic tissues like muscle, where tissue morphology dictates contraction and motion. The recently developed method of melt electrofibrillation offers a promising platform for producing highly aligned nanofibrillar scaffolds that mimic collagen. These scaffolds are created by melt electrowriting a blend of polycaprolactone (PCL) and polyvinyl acetate (PVAc), which are precisely printed in a box geometry.

Decarboxylative Fluorination Catalyzed by Pyridine-Containing Charge-Transfer Complex.

Herein, we present a novel organic photoredox decarboxylation system that employs a charge-transfer complex formed between pyridine derivatives and Selectfluor as the catalytic species. Under basic conditions, this system facilitates the decarboxylative fluorination of alkyl carboxylic acids upon visible light irradiation. The methodology applies to primary, secondary, and tertiary carboxylic acids, demonstrating good substrate scope.

Microstructural transformation for robust and high-efficiency Zintl thermoelectrics.

Thermoelectric materials offer an exceptional opportunity to convert waste heat into electricity directly, yet their widespread application remains hindered by intrinsic brittleness and poor processability. Here, we introduce a graded ball milling strategy that fundamentally enhances the mechanical robustness and processability of YbZnSb-based thermoelectrics. By refining grain microstructure, increasing dislocation density, and promoting intermediate-angle grain boundaries, this approach enables the fabrication of crack-free, large-size, disc-shaped, and microscale dices while maintaining excellent thermoelectric performance.

Effect of 3,3'-Diindolylmethane on the Antibacterial Activity of Fluoroquinolones as Constituents of Potential Drug Products for Topical Application.

The aim of the study was to overcome the resistance to fluoroquinolones of Gram-positive and Gram-negative, largely drug-resistant bacteria that infect combat-related traumatic injuries to the skin and adjacent tissues. For this purpose, 0.1% ofloxacin, levofloxacin, or moxifloxacin in combination with 0.

Catalyst-free partial oxidation of methane under ambient conditions boosted by mechanical stirring-enhanced ultrasonic cavitation.

The partial oxidation of methane (POM) into value-added C chemicals (e.g., CHOH, HCHO, and CO) offers a promising approach for natural gas utilization under mild conditions.

Rational design of metal-organic frameworks (MOFs) as hosts for nanoparticles in catalytic applications: concepts, strategies, and emerging trends.

Metal-organic frameworks (MOFs) are a versatile class of porous coordination materials that have found widespread application in various fields, particularly as heterogeneous catalysts. Due to the modular nature and molecular tunability of the metal node-linker coordination in MOFs, they are considered competent hosts for secondary materials in their extensive pore channels. Modifications of the metal nodes or ligand functionalisation in MOFs can improve the anchoring ability of nanoparticles, effectively enhance the nanoparticles' stability, and mitigate the inherent nature of nanoparticles to aggregate.

Chain-Length dependent IL@MWCNTs adsorbents for solid-phase extraction of aflatoxin B1: Enhancing oil-matrix compatibility and extraction efficiency.

Edible oils are prone to contamination by aflatoxin B₁ (AFB₁), posing significant food safety risks. In this study, a series of imidazolium ionic liquids (ILs) with varying alkyl chain lengths (C₂, C₄, C₆, C₈) were covalently grafted onto multi-walled carbon nanotubes (MWCNTs) via a free-radical method to develop IL@MWCNT adsorbents (EMIM@MWCNT, BMIM@MWCNT, HMIM@MWCNT, OMIM@MWCNT) for solid-phase extraction (SPE) of AFB₁, followed by HPLC-fluorescence detection. Comprehensive characterization revealed that chain length critically influenced material properties: SEM and BET analysis demonstrated that HMIM@MWCNT (C₆) exhibited the highest specific surface area (101.

Harnessing -Vinylhydroxylamines for Ring-Annulation: A Scalable Approach to Azaindolines and Azaindoles.

We report a convenient and scalable strategy for the synthesis of 7-azaindolines and 7-azaindoles using -vinylhydroxylamines as ring-annulation reagents. These fused nitrogen-containing heterocycles are prominent in numerous biologically active molecules, including FDA-approved pharmaceuticals. Traditional synthetic approaches to these motifs often rely on costly transition metal catalysts and/or high-temperature conditions, such as those employed in the Larock and Fischer indole syntheses.

Advances and mechanistic insights into low-frequency (Sub-8 GHz) microwave-absorbing materials: A critical review bridging conventional architectures and emerging frontiers.

The rapid proliferation of 1-8 GHz electromagnetic waves (EMW) in modern communication systems has intensified the need for advanced low-frequency microwave absorbers. This review highlights the evolution of sub-8 GHz absorption materials, transitioning from traditional magnetic systems (e.g.

Polymer/Graphene Composite with Multiple Active Sites Enables Membrane-Free Decoupled Hydrogen Production in Acidic Electrolyte.

Decoupled water electrolysis using solid-state redox mediators (SRMs) enables spatial and temporal separation of hydrogen and oxygen production without relying on membranes. Here, a nitrogen-containing heterocyclic quinone polymer (PYTQ) was integrated with reduced graphene oxide (RGO) via vacuum-assisted filtration to synthesize the composite material (PYTQ-RGO). Benefiting from the multiple active sites for PYTQ and the strong π-π interactions between PYTQ and RGO, the composite exhibits high specific capacity and excellent stability.

Direct dehydrocoupling facilitates efficient thiophene anchoring on silicon surfaces.

Silicon is a cornerstone material in electronics and photovoltaics due to its abundance, tunable semiconducting properties, and chemical versatility. Direct anchoring of thiophenes, with their highly delocalized aromatic backbones, onto silicon surfaces offers a promising route to tailor charge carrier migration properties. However, current methods for anchoring thiophenes commonly rely on pre-activation of precursors or transition-metal catalysts.

Amino-Functionalized Luminescent Metal-Organic Framework for Turn-On Detection of Al Ions.

Aluminum products have a wide range of applications in daily life, but excessive accumulation of aluminum (Al) ions causes diseases and affects human health. The accurate detection of Al ions is crucial for preventing their accumulation and mitigating adverse effects on human health. Herein, a luminescent metal-organic framework (MOF), FJU-40-NH, has been designed for selective aluminum ion (Al) detection with a significantly enhanced fluorescence response.

A Multifaceted Nanodrug Disrupts the Copper-Iron Homeostasis to Enhance Cancer Radiotherapeutic Effect.

Radiation therapy (RT) is a core modality in cancer treatment; however, its efficacy is often limited by tumor resistance. Studies have shown that RT induces abnormal copper ion accumulation and iron reduction, thereby inhibiting ferroptosis and exacerbating therapeutic resistance. In this study, multiomics database analysis revealed that various RT-resistant cancer cell lines and patient-derived tumor models exhibit characteristics of disrupted copper homeostasis and enhanced copper ion-binding capacity.

Unveiling the role of localized polaronic mid-gap states in enhanced carrier transfer in TiO/BiVO heterojunctions under visible light irradiation.

TiO/BiVO heterojunctions are considered to be one of the most promising materials for photocatalysts due to their extended carrier lifetime, high visible light response, and good stability. However, while Type-II TiO/BiVO heterojunctions are well-studied, the fundamental mechanism behind the Type-I configurations remains unclear, particularly regarding their unexpected high photocatalytic activity despite theoretically unfavorable band alignment. Herein, we reveal that localized polaronic mid-gap states (SP states) can mediate efficient charge transfer and recombination in TiO/BiVO using time-resolved photoluminescence (PL) spectroscopy and transient absorption spectroscopy (TAS), providing direct experimental evidence of this mechanism.

High-Temperature Enhancing Triboelectric Nanogenerator Based on Antioxidant Liquid Crystalline Polyarylate.

Triboelectric nanogenerator (TENG) is a prospective energy harvesting technology, especially polymer-based TENG has achieved remarkable achievements. However, most polymer-based triboelectric layers suffer serious structural degradation and rapid decrease of charge density at high temperatures, which severely lowers the power supply capacity of TENG and definitely limits their applications in extreme environments. Herein, the antioxidants are introduced into liquid crystalline polyarylate (LCP) to fabricate thermally stable TENG and enhance its thermal oxidation resistance.

Solid-state synthesis of colloidal tin-incorporated silicon nanocrystals.

The incorporation of tin (Sn) into crystalline silicon (c-Si) is challenging due to their substantial atomic size mismatch and the rigid diamond-type structure of c-Si. Herein, we demonstrate a solid-state synthetic approach of colloidal Sn-incorporated silicon nanocrystals with Sn content up to 0.12 atomic%.

Biofabrication of a Filtration Barrier by Integrating Electrospun Membranes and Flow in a Glomerular Co-Culture.

The glomerular filtration barrier (GFB), composed of glomerular endothelial cells, podocytes, and the glomerular basement membrane (GBM), is essential for selective filtration in the kidney. Damage to any GFB component results in proteinuria and kidney failure. To model glomerular pathophysiology and test therapies, this study introduces an ex vivo GFB model using electrospun poly-L-lactic acid fibers that mimic the GBM.

Printing photonic-based thermal barrier coatings onto metal alloy.

Reflective coatings based on photonic crystals and photonic glasses are usually produced by traditional colloidal self-assembly techniques characterised by limited control over the deposition surface and lengthy processing times. The emergence of Additive Manufacturing combined with Colloidal Assembly (AMCA) has enabled fast and precise deposition of homogeneous photonic structures, whilst circumventing issues such as the undesired coffee-ring effect. However, the application of this technique was limited to flat substrates.

Ultrapure and efficient electroluminescence in alkali metal doped inorganic perovskite quantum wires arrays.

Alkali metal doping has been widely utilized to regulate metal halide perovskites and improve their luminescence performance. However, due to the discordant tolerance factor caused by the smaller size of potassium and rubidium ions, it is still debatable whether they can be incorporated in the cesium perovskite crystal lattice. Here we provide unambiguous evidence for the formation of Rb and K substitutionally doped stable perovskite cubic crystal structure in the form of quantum wires embedded in nanoporous alumina template.

An actuatable ionogel thermoelectric fiber with aligned mesogens-induced thermopower for four-dimensional dynamically adaptive heat harvesting.

Thermoelectric (TE) ionogel have emerged as promising materials for harvesting low-grade heat owing to their flexibility and giant thermopower. However, current high-performance TE ionogel requires multi-component systems, resulting in trade-offs between TE performance, mechanics, and ion leakage risk. Moreover, the humidity-dependent thermopower and two-dimensional device architectures restrict their practical applications.

Immune modulation and improved systemic performance of phosphate-functionalized nanogels for antifungal therapy.

Phosphate functionalization of nanogels (NGs), originally designed to enhance interactions with fungal pathogens, also significantly influences their immune interactions and systemic behaviour. In this study, we investigated how phosphate-modified NGs perform as antifungal carriers in vivo using the silkworm model. We found that phosphate functionalization promotes faster internalization by granulocytes-immune cells functionally similar to mammalian neutrophils-highlighting a trade-off between antifungal activity and immune uptake.

Vacancy-Induced Atomic Diffusion in a Molecular Metal Cluster Complex.

The presence of atomic vacancies in a close-packed material is believed to allow the migration of atoms adjacent to the vacancies, which induces dynamics of atoms. However, it is not known whether atoms in discrete molecules can undergo vacancy-induced dynamics. We describe herein the generation of a close-packed Pd cluster complex [Pd(CH)][B(Ar)] (n = 2, 3) with a Pd-atom vacancy, and the observation of the diffusion of Pd atoms.

Mixed-Anion Inorganic Zn Halide RbZnClI.

Lead-free halides, recognized for their nontoxic properties and remarkable stability, have emerged as promising candidates for various optoelectronic applications. In this work, we report the discovery of a novel all-inorganic zinc halide, RbZnClI. With the doping of Mn ion, the as-obtained RbZnMnClI single crystals show intense green photoluminescence with a full width at half-maximum (fwhm) of 52 nm and a peak at 525 nm.