Polarized Luminescence in Halide Perovskite Nanomaterials.

Halide perovskite nanomaterials have emerged as a transformative platform for generating and manipulating polarized luminescence, offering unprecedented opportunities for next-generation optoelectronic technologies. This review comprehensively examines recent advances in engineering both linearly polarized luminescence (LPL) and circularly polarized luminescence (CPL) from perovskite nanostructures, focusing on structural design principles, chirality transfer mechanisms, and performance optimization strategies. Methods are systematically analyzed to achieve polarized emission, including anisotropic nanocrystal growth, chiral ligand functionalization, and liquid crystal-mediated alignment, while highlighting critical optical factors such as dissymmetry factors and photoluminescence quantum yield.

Reprogramming Macrophage Function via Cholesterol Modulation and Redox Signaling Using a Multifunctional Nanoplatform for Postoperative Breast Cancer Management.

Postoperative recurrence and infection remain major obstacles to effective breast cancer recovery, often driven by cholesterol-mediated macrophage dysfunction. Here, we report the development of CuMPmC, a multifunctional nanoplatform constructed through copper-dopamine chelation and self-polymerization, functionalized with mannose for selective targeting of M2-like macrophages, and loaded with cholesterol oxidase (ChOx). CuMPmC depletes macrophage membrane cholesterol via ChOx-mediated oxidation, enhancing plasma membrane fluidity and thereby promoting macrophage chemotaxis.

Synergistic supramolecular conductive dressing integrating electrical stimulation and polyoxometalate antioxidants for enhanced chronic wound healing.

Chronic wounds, exacerbated by bacterial infections and oxidative stress, remain a formidable challenge in clinical wound management. Here, we introduce a multifunctional conductive dressing composed of polyvinyl alcohol (PVA), poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT: PSS), a citric acid-β-cyclodextrin supramolecular system, and cyclodextrin-polyoxometalates (CD-POM). This dressing integrates electrical stimulation (ES), antioxidative capacity, anti-inflammatory effects, and antibacterial efficacy to promote tissue regeneration.

Host-Dependent Tunable Phosphorescence Based on Aromatic Heterocyclic Derivatives: Highly Efficient and Photo-Activated Ultralong Organic Phosphorescence.

Achieving high phosphorescence efficiency and photo-activated ultralong organic phosphorescence (UOP) based on the same molecule remains a formidable challenge. Here, a concise strategy is proposed to obtain highly efficient and photo-activated RTP by doping aromatic heterocyclic derivatives into different polymers. Aromatic heterocyclic derivatives are doped into PAM, PVA, or PAA polymers to produce high phosphorescence efficiency.

Chemical and mechanical modifications of flexible metal-organic frameworks for enhancing photocatalysis.

Postsynthetic modification (PSM) has been widely employed to enhance the functionality of metal-organic frameworks (MOFs) for applications such as gas storage, light harvesting, and catalysis. However, the critical role of framework flexibility in enabling diverse modification pathways and influencing framework properties remains underexplored. In this work, we demonstrate that flexible MOFs offer unique advantages for PSM, using the flexible PCN-128 as a platform for both chemical and mechanical modifications to enhance photocatalytic CO reduction activity.

CuOTeDsP nanotherapeutics enhance cuproptosis-mediated immunotherapy by modulating cholesterol metabolism in bladder cancer.

Unlabelled: Elevated squalene epoxidase (SQLE) levels in bladder cancer cells drive abnormal cholesterol accumulation, contributing to malignancy, invasion, and resistance to immunotherapy. Here, we introduce a hollow CuO nanoparticle-based nanotherapeutic, termed CuOTeDsP, which is PEGylated and co-loaded with SQLE inhibitor terbinafine and disulfiram, for enhanced bladder cancer therapy through cholesterol metabolism modulation. CuO nanoparticles exhibit peroxidase-, catalase-, and glutathione oxidase-like enzymatic activities, along with biodegradability, resulting in elevated oxidative stress, alleviation of hypoxia, and responsive therapeutic release.

Advancing the Stability of Carbon-Based Catalysts for Long-Lasting Oxygen Reduction Reactions.

Achieving high-performance carbon-based catalysts for the oxygen reduction reaction (ORR) is pivotal for advancing sustainable energy technologies. Despite significant advancements in ORR activity, the intrinsic instability of carbon frameworks and active sites under harsh operating conditions remains a fundamental challenge. Although the degradation of carbon under ORR conditions has long been recognized, previous reviews and research works dominantly focus on improving catalytic activity, whereas the stability issue, which is decisive for practical applications, is largely neglected or treated superficially, thus impeding the commercialization of carbon ORR catalysts.

Bottom-Up Regulation of Perovskite Growth and Energetics via Oligoether Functionalized Self-Assembling Molecules for High-Performance Solar Cells.

Self-assembling molecules (SAMs) are widely used as interfacial layers to optimize the surface properties of nickel oxides (NiO) in inverted perovskite solar cells (PSCs). However, less attention is paid to the effect of SAMs on the regulation of perovskite growth and energetics. Here, based on the donor-acceptor molecular backbone, an oligoether chain is introduced with different chain lengths to endow two novel SAMs, namely, EPA and MEPA, with good capability of bottom-up regulation of perovskite formation and energetics.

Design, Synthesis, and Improvement of Nonlinear Optical Properties from Aluminophosphite to Aluminophosphate.

Two novel aluminophosphates, Al(HPO)(HPO) and Al(PO)(HO), were synthesized using hydrothermal methods, while another polar aluminophosphite, Al[PO(OH)](HO), was obtained via a low-temperature flux method. They crystallized in the nonpolar space group 6 and polar space groups of 222 and 6mc, respectively. The basic units of Al(HPO)(HPO) consist of PO/PO and AlO groups, in which one AlO octahedron coordinated with six PO tetrahedra/PO pyramids and one PO tetrahedron/PO pyramid linked three AlO dimers.

Luminescence lifetime thermometers based on hybrid cuprous halides with exceptional water resistance and giant thermal expansion.

Optical probes hold great promise for temperature sensing owing to their attractive properties including rapid response, high spatial resolution, and remote non-invasive detection. However, the exploration of thermometric probes is hindered by their low relative sensitivity (S) or poor structural stability in water. Herein, we propose the first example of organic-inorganic metal halides based on TPPCuBr (TPP = triphenylphosphine) that simultaneously present excellent water resistance and sensitive temperature-dependent photoluminescence lifetime in water.

A Biomimetic Copper Silicate-MOF Hybrid for Highly Stable Zn Metal Anode.

To promote the electrochemical performance of aqueous zinc-ion batteries, various artificial interlayers are developed to mitigate dendrite growth and HO-induced side reactions of Zn anode. Metal-organic framework (MOF) interlayers show much potential in solving these problems, yet their practical usage is inhibited by their inferior structural stability during cycles. Herein, inspired by the biological mechanism and symbiotic architecture of drosera rotundifolia, this challenge is tackled by constructing a hierarchical hollow CuSiO-MOF hybrid through in situ MOF conversion.

Tin-halide perovskites for light-emitting diodes.

Tin-halide perovskite light-emitting diodes (PeLEDs) have garnered significant attention due to their exceptional potential in achieving high-performance and eco-friendly light-emitting devices. Tin-halide PeLEDs have recently achieved notable breakthroughs in device efficiency, spectral tunability, and long-term operational stability. However, the facile oxidation of Sn and rapid crystallization kinetics have substantially constrained their further development.

Rapid SERS Analysis: From Laboratory to Real Sample.

On the 50th anniversary of the discovery of surface-enhanced Raman spectroscopy (SERS), numerous reviews highlighted SERS advancements from different aspects, such as the historical evolution, enhancement mechanisms, quantitative analysis, and medical applications. However, how to develop the rapid SERS analysis for real samples has rarely been summarized yet. This review highlights the following three pivotal steps in this direction: (1) establishing reliable and highly selectively sensitive SERS analysis in the laboratory; (2) developing rapid sample pretreatment; and (3) AI-enhanced qualitative and quantitative SERS analysis.

Enhanced Performance of ZnO-Based Deep Red Perovskite Light-Emitting Diodes through Polyethylenimine Ethoxylated/1- Aminopyridinium Iodide Dual-Function Modification Layer.

Deep red perovskite light-emitting diodes (LEDs) based on a zinc oxide (ZnO) electron transporting layer (ETL) have achieved great improvement in recent years. Polyethylenimine ethoxylated (PEIE) is widely employed as a modification layer for ZnO in deep red perovskite LEDs to address the interfacial reaction between ZnO and perovskites. However, there is a lack of research on the regulation of the PEIE properties.

Atomically precise Ni clusters inducing active NiN sites with uniform-large vacancies towards efficient CO-to-CO conversion.

CO electroreduction to CO promises to give an efficient strategy for CO fixation and transformation. However, current reported active sites fail to deliver sufficient activity with high CO Faradic efficiency (FEco) over a wide range of potential. Here, we show a general synthetic protocol to fabricate a batch of highly pure and active NiN catalysts with precise engineering of the uniform-large (UL) vacancy around the active sites, which is accomplished through the 'pre-deposition + pyrolysis' of various atomically precise Ni clusters (Ni) and in-situ etching of the support by the 'nano bomb' (sulfur-ligand in the clusters).

Synergistic Control of Organic Lead Chloride Perovskite Crystallization through the Precursor and Growth Substrate for High-Performance and Stable Transparent Optoelectronics.

Transparent optoelectronics are crucial in modern applications, advancing display technologies in smartphones and smart windows, and supporting high-speed communication systems and advanced sensors. CHNHPbCl (MAPbCl) has garnered significant attention due to its ideal optical bandgap and outstanding optoelectronic performance. However, the fabrication of high-quality MAPbCl thin films faces significant challenges, primarily due to the uncontrolled nucleation process, which results in nonuniform crystallization, poor surface coverage with numerous voids, and high roughness.

All-site alloyed perovskite for efficient and bright blue light-emitting diodes.

Perovskite light-emitting diodes have drawn great attention in the fields of displays and lighting, especially for applications requiring high efficiency and high brightness. While three-dimensional perovskite light-emitting diodes hold promise for achieving higher brightness compared to low-dimensional counterparts, efficient blue three-dimensional perovskite light-emitting diodes have remained a challenge due to defect formation during the disordered crystallization of multiple A-cation perovskite. Here we demonstrate an all-site alloy method that enables sequential A-site doping growth of formamidinium and cesium hybrid perovskite.

Multifunctional Hollow Bimetallic Sulfide Nanozyme Enables Imaging-Guided Synergistic Ferrotherapy for Tumor Treatment.

The design of nanozymes with controlled properties and well-defined mechanisms holds significant promise for advancing next-generation functional biomaterials for tumor theranostics. Here, we develop a metal-organic framework (MOF)-derived bimetallic sulfide nanozyme, FCS, for ferrotherapy via combined photothermal and catalytic therapies. FCS is synthesized by vulcanizing the zeolitic imidazolate framework-67 (ZIF-67) into cobalt sulfide (CoS, CS), followed by ferrous cation exchange, resulting in enhanced near-infrared II photothermal conversion and superior Fenton-like catalytic activity.

A comprehensive understanding on droplets.

Droplets are ubiquitous and necessary in natural phenomena, daily life, and industrial processes, which play a crucial role in many fields. So, the manipulation of droplets has been extensively investigated for meeting widespread applications, consequently, a great deal of progresses have been achieved across multiple disciplines ranging from chemistry to physics, material, biological, and energy science. For example, microdroplets have been utilized as reactors, colorimetric or electrochemical sensors, drug-delivery carriers, and energy harvesters.

Functional nanozyme system for synergistic tumor immunotherapy via cuproptosis and ferroptosis activation.

Elevated copper levels induce tumor cuproptosis and ferroptosis, leading to immunogenic cell death and subsequent antitumor immune responses. However, dysregulated copper metabolism in tumor cells maintains homeostatic copper balance, while hypoxic microenvironments hinder therapeutic efficacy. In this study, we present a nanozyme system, termed CussOMEp, comprising a copper-based nanovector (CussNV) that is PEGylated and loaded with omeprazole, a copper transporter inhibitor, to enhance tumor synergistic immunotherapy by promoting cuproptosis and ferroptosis.

Synthesis, Structure and Iodine Adsorption Properties of a Ni Cluster-Based Supramolecular Framework.

The capture of radioactive iodine (129I or 131I) is of significant importance for the production of nuclear power and the treatment of nuclear waste. In recent years, crystallized porous materials have been extensively investigated to achieve highly effective adsorption of radioactive iodine. Herein, by using the hydrothermal method, a Ni cluster-based framework () was successfully constructed through a self-assembly process.

Emerging Initiated Chemical Vapor Deposition Nanocoatings for Sustainable Food and Agriculture.

Initiated chemical vapor deposition (iCVD) has emerged as a versatile technique for developing functional nanocoatings that address critical food and agricultural challenges. This review highlights the unique capacities of iCVD nanocoatings, which enable precise engineering of surface properties, such as targeted cellular and molecular interactions, antimicrobial activity, and fouling resistance. In addition, the solvent-free nature of iCVD is particularly advantageous for coating sensitive materials and complex geometries commonly used across food and agriculture applications.

Supramolecular polyrotaxane-based nano-theranostics enable cancer-cell stiffening for enhanced T-cell-mediated anticancer immunotherapy.

Despite the tremendous therapeutic promise of activating stimulators of interferon genes (STING) enable to prime robust de novo T-cell responses, biomechanics-mediated immune inhibitory pathways hinder the cytotoxicity of T cells against tumor cells. Blocking cancer cell biomechanics-mediated evasion provides a feasible strategy for augmenting STING activation-mediated anti-tumor therapeutic efficacy. Here, we fabricate a redox-responsive Methyl-β-cyclodextrin (MeβCD)-based supramolecular polyrotaxanes (MSPs), where the amphiphilic diselenide-bridged axle polymer loads MeβCD by the host-guest interaction and end-caping with two near-infrared (NIR) fluorescence probes IR783.

Semiconducting Open-Shell Radicals for Precise Tumor Activatable Phototheranostics.

Semiconducting open-shell radicals (SORs) have promising potential for the development of phototheranostic agents, enabling tumor bioimaging and boosting tumorous reactive oxygen species (ROS). Herein, a new class of semiconducting perylene diimide (PDI), designated as PDI(Br) with various numbers of bromine (Br) atoms modified on PDI's bay/ortho positions is reported. PDI(Br) is demonstrated to transform into a radical anion, [PDI(Br)], in a reducing solution, with a typical g-value of 2.

Microneedle-Mediated Synergistic Photothermal and Chemotherapy for Targeted Melanoma Treatment.

Melanoma, a malignant skin tumor originating from melanocytes, is typically treated with surgery in its early stages. However, chemotherapy becomes the primary treatment as the disease progresses to intermediate and advanced stages. The parenteral administration of chemotherapy can cause anxiety, discomfort, and infection risks, especially in immunocompromised cancer patients.