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NIR-Responsive Double Closed-Ring Isomer of a Diarylethene Fused Dimer Synthesized by Stepwise Photochemical and Oxidative Cyclization Reaction
2025 / Journal of the American Chemical SocietyThe double closed-ring isomer of a diarylethene fused dimer was synthesized by a combination of photochemical and oxidative cyclization reaction. The double closed-ring isomer of a diarylethene fused dimer has fixed π-conjugation in a rigid planar framework so that this compound has been long-desired. However, with respect to the photocyclization of a diarylethe...
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High-Performance Sky-Blue Perovskite Spin-Light Emitting Diodes Due to Chiral Ionic Liquid Implantation and Passivation
2025 / Advanced Functional MaterialsIn chiral hybrid perovskites (CHPs), the generation of polarized spin current and the manipulation of spin exciton recombination are expected to produce circularly polarized electroluminescence (CP-EL) through chiral-induced spin selectivity (CISS). It opens a new avenue for developing single junction spin light-emitting diodes (spin-LEDs). The recent challenge l...
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A bioinspired polymeric membrane-enclosed insulin crystal achieves long-term, self-regulated drug release for type 1 diabetes therapy
2025 / Nature NanotechnologyThe nuclear envelope serves as a highly regulated gateway for macromolecule exchange between the nucleus and cytoplasm in eukaryotes. Here we have developed a cell nucleus-mimicking polymeric membrane-enclosed system for long and self-regulated therapy. A polymeric nano-membrane with nanopores is conformally synthesized in situ on the surface of each insulin crys...
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Light-Dynamic Chirality Inversion of Circularly Polarized Organic Ultralong Room-Temperature Phosphorescence Enabled by Soft Helical Superstructure
2025 / Advanced Optical MaterialsDynamic and reversible manipulation of circularly polarized luminescence (CPL) in soft materials is highly desirable for advanced chiroptical devices, information encryption, and labeling technology. However, this remains a formidable challenge in circularly polarized organic ultralong room-temperature phosphorescence (CP-OURTP) materials. Herein, a bilayered chi...
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Mixed 1D/0D Structures of Chiral Hybrid Lead Halides with an l-Nicotinium Spacer Exhibit Broadband Photoluminescence and Polarized Emission
2025 / Journal of the American Chemical SocietyHybrid lead halide materials have been highly studied for optoelectronics, but their use with chiral organics in chiro-optoelectronics remains limited. Understanding the ability to impart chirality into bulk materials by incorporating a chiral precursor is of great interest due to unique optical properties directly arising from chirality such as circular dichroism,...
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Targeted Imaging of Estrogen Receptor-Positive Cancer Cells Using Fluorescent Estradiol Probes
2025 / Advanced Optical MaterialsBreast cancer remains the second most common cause of cancer-related deaths in women worldwide, with ≈70% of cases linked to the overexpression of Estrogen Receptor (ERα). Existing imaging tools often fail to reliably differentiate between ER-positive and ER-negative cancer cells. To address this limitation, two novel fluorescent probes, E2N and E2R, ...
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Ultrathin Nanofibers Ameliorate Commercial Gauze for Rapid Hemorrhage Control Via Improved Clotting Kinetics and Rbc Modulation
2025 / Advanced Healthcare MaterialsTimely control of bleeding is crucial to reduce mortality in traumatic injuries, highlighting the urgent need for biomaterials with anti-hemorrhagic properties. Polycaprolactone (PCL) is commonly used for producing nanofibers in the range of 100–200 nm. However, creating ultrafine PCL nanofibers with diameters below 100 nm remains a challenge, limiting its ...
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Waveguide Microactuators Self-Rolled Around an Optical Fiber Taper
2025 / Advanced MaterialsPrecisely capturing and manipulating microscale objects, such as individual cells and microorganisms, is fundamental to advancements in biomedical research and microrobotics. Photoactuators based on optical fibers serving as flexible, unobstructed waveguides are well-suited for these operations, particularly in confined locations where free-space illumination is ...
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Improving Cyclability and Structural Stability of Co-Free Layered Cathode by Controlling Porosity and Cracks in Secondary Particles for Low-Cost and High-Energy LIBs
2025 / Advanced Functional MaterialsThe Co-free Li[Ni0.75Mn0.25]O2 (NM7525) cathode offers the significant advantage of low production costs. However, it requires a high-voltage charging process (≥4.5 V vs Li/Li⁺) to achieve the energy density level of high-Ni Li[NixCoyMnz]O2 (x ≥ 0.8) cathodes, which leads to severe structural and morphological degradation in the secondary particles during p...
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Magnetic Field Driven Ceria Nanosystems for Mitochondria Targeted Therapy of Ischemic Stroke
2025 / Advanced Functional MaterialsNanomedicine based brain targeting strategies have emerged as a promising avenue for ischemic stroke (IS) treatment. However, conventional targeting approaches face significant challenges in manipulating biodistribution and achieving efficient brain targeting to attain adequate therapeutic effects. Here, this limitation is overcame by developing a magnetic field ...
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Structure and mechanism of haem-dependent nitrogen–nitrogen bond formation in piperazate synthase
2025 / Nature CatalysisMolecules with nitrogen–nitrogen (N–N) bonds include diverse specialized metabolites from nature, but little is known about the underlying enzymatic mechanisms that have evolved for N–N bond formation. To directly form a single N(sp3)–N(sp3) bond, enzymes must reverse the typical nucleophilicity of one nitrogen. Here we report the structure ...
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Exploring the Origin of White Emission in TAPC: Electron Transport Layer Based Exciplex Devices
2025 / Advanced Optical MaterialsThis study investigated white organic light-emitting diodes (OLEDs) with a single emissive layer and comprising a hole transport material 1,1-Bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC) and two electron transport materials 1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) and 1,3,5-tris(3-pyridyl-3-phenyl)benzene (TmPyPB). The devices exhibited unique em...
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Tunable and Responsive Circularly Polarized Luminescence of Self-Organized Cellulose Nanocrystal Chiral Superstructures Loaded with AIE Luminogen
2025 / Advanced Functional MaterialsCircularly polarized luminescence (CPL) holds great potential for next-generation display techniques. However, dynamic, multicolor CPL with high luminescent quantum yield (PLQY) and tunable dissymmetry factor (glum) based on cost-effective, sustainable materials is scarcely attainable. Herein, a straightforward approach is proposed for engineering cellulose nanoc...
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High-Performance Organic Ultralong Room Temperature Phosphorescence Based on Biomass Macrocycle
2025 / Advanced MaterialsThe pursuit of sustainable, high-performance organic ultralong room temperature phosphorescence (OURTP) materials with stimulus-responsive properties presents a significant and enticing yet formidable challenge. Herein, an efficient strategy to confining boric acid-based compounds into biomass macrocycle γ-cyclodextrin through multiple interactions is devel...
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Activating Halogen Circulation Enables Efficient and Stable Wide-Bandgap Mixed-Halide Perovskite Solar Cells
2025 / Advanced MaterialsDeveloping strategies to manage ion-migration-induced phase segregation in wide-bandgap (WBG) perovskites is crucial for achieving high-performance perovskite-silicon tandem solar cells (TSCs). However, maintaining continuous suppression of phase segregation from the film crystallization process to device operation remains a significant challenge. The present stu...
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