Naphthalimide‐Conjugated Spiropyran: Dual‐State Emission and Photo‐Responsive Dynamic Fluorescence Color for Information Encryption Application

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Developing photo‐switch molecules that show fluorescence in both monomeric and aggregated states, with light‐controllable wavelength is far‐reaching a great challenge. Spiropyran (SP) has received considerable attention this field. Herein, by conjugating naphthalimide to the indole moiety of SP, new spiropyran derivative, named NMI‐SP obtained. shows dual‐state emission excellent its attributed intramolecular charge transfer character. Moreover, demonstrates obvious photochromic behavior, accompanied visible color change from yellow green THF solution, photo‐responsive orange red state. This work provides insights into design materials based on SP fluorophore highlights their potential applications digital coding information conversion.

Язык: Английский

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Intramolecular through-space heavy-atom effect in π-stacked MR-TADF emitters

Chem, Год журнала: 2025, Номер unknown, С. 102377 - 102377

Опубликована: Март 1, 2025

Язык: Английский

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Engineering a Near-Infrared Spiro-Based Aggregation-Induced Emission Luminogen for DNAzyme-Sensitized Photothermal Therapy with High Efficiency and Accuracy

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(51), С. 35462 - 35477

Опубликована: Дек. 12, 2024

Aggregation-induced emission luminogen (AIEgens)-based photothermal therapy (PTT) has grown into a sparkling frontier for tumor ablation. However, challenges remain due to the uncoordinated photoluminescence (PL) and properties of classical AIEgens, along with hyperthermia-induced antiapoptotic responses in cells, hindering satisfactory therapeutic outcomes. Herein, near-infrared (NIR) spiro-AIEgen TTQ-SA was designed boosted PTT by auxiliary DNAzyme-regulated cell sensitization. unique molecular structure packing mode initially fabricated, endowing it strong AIE effect, favorable PL quantum yield, good performance. DNAzyme, as gene silencing tool, could alleviate antiapoptosis response during PTT. By integrating DNAzyme folate-modified poly(lactic-co-glycolic acid) (PLGA) polymer, as-fabricated nanosystem promote apoptosis sensitize cells PTT, thereby maximizing With combination spiro-AIEgen-based DNAzyme-based silencing, as-designed showed promising NIR imaging abilities targeting demonstrated significant apoptotic, antitumor, antimetastasis effects against orthotopic breast cancer. Furthermore, synergistic antitumor effect realized spontaneous MMTV-PyMT transgenic mice. These findings offer new insights AIEgen-based theranostics sensitization, paving way silencing-PTT nanoplatforms clinical research.

Язык: Английский

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Synthesis and Chiral Self-Sorting of Spirobifluorene-Containing Boronate Ester Cages

Organic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Diboronic acids based on chiral spirobifluorenes are selectively sorted into homochiral organic cages via dynamic covalent boronate ester formation.

Язык: Английский

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Aggregation-Induced Emissive Scintillators: A New Frontier for Radiation Detection and Imaging

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Фев. 24, 2025

Abstract Aggregation-induced emission (AIE) is a unique phenomenon where certain organic materials exhibit enhanced luminescence in their aggregated states, overcoming the typical quenching observed conventional materials. Since its discovery 2001, AIE has driven significant advances fields like OLEDs and biological imaging, earning recognition fundamental research. However, application high-energy radiation detection remains underexplored. Organic scintillators, though widely used, face challenges such as low light yield poor attenuation. offer promising solutions by improving yield, response speed, This review summarizes design strategies behind scintillators very recent applications X-ray, γ-ray, fast neutron detection. We highlight advantages enhancing sensitivity, reducing background noise, achieving high-resolution imaging. By addressing current challenges, we believe will play pivotal role advancing future imaging technologies.

Язык: Английский

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Organic Semiconducting Polymers in Photonic Devices: From Fundamental Properties to Emerging Applications

Applied Sciences, Год журнала: 2025, Номер 15(7), С. 4028 - 4028

Опубликована: Апрель 6, 2025

This review examines the distinct advantages of organic semiconductors over conventional insulating polymers as optically active materials in photonic applications. We analyze fundamental principles governing their unique optical and electronic properties, from basic conjugated polymer systems to advanced molecular architectures. The systematically explores key material classes, including polyfluorenes, polyphenylene vinylenes, polythiophenes, highlighting dual electrical–optical functionality unavailable passive systems. Particular attention is given blends, composites, hybrid organic–inorganic systems, demonstrating how semiconductor properties enable enhanced performance through engineering. contrast components with devices, illustrating nature these facilitates novel functionalities beyond simple light guiding. emerging applications neuromorphic photonics, quantum bio-integrated where combined electronic–optical create capabilities impossible polymers. Finally, we discuss design strategies for optimizing distinctive present perspectives on future developments. establishes transformative advancing technologies functionality.

Язык: Английский

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Scintillators with aggregation-induced emission

Chem, Год журнала: 2025, Номер unknown, С. 102534 - 102534

Опубликована: Апрель 1, 2025

Язык: Английский

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Development and enantioselective synthesis of spirobiindoles via Rh-catalyzed asymmetric arylation-spirocyclization sequence

Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 111258 - 111258

Опубликована: Апрель 1, 2025

Язык: Английский

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