High‐Performance Organic Ultralong Room Temperature Phosphorescence Based on Biomass Macrocycle

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

Abstract The 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 developed, enabling the construction multicolor OURTP doped systems. synergistic effects strong hydrogen bonding, C─O─B covalent cross‐linking, host–guest encapsulation significantly suppress non‐radiative transition, culminating in extraordinary lifetime excellent quantum yield 4.65 s 32.8%, respectively, which are far superior reported RTP materials. Additionally, merging phosphors contributes stimulus responses, overcoming inherent limitations degradation recycling compounds, dynamically modulating signals multiple‐stimulus achieving integration multifunctional dynamic data processing techniques. This work will provide direction for new environmentally friendly potentially commercially available

Язык: Английский

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Ultralong Blue Organic Room‐Temperature Phosphorescence Promoted by Green Assembly

Advanced Functional Materials, Год журнала: 2024, Номер 34(46)

Опубликована: Июль 9, 2024

Abstract In recent years, there is a growing interest in developing ultralong organic room‐temperature phosphorescence (ORTP) with lifetimes the range of seconds. As one important three primary colors, blue ORTP an indispensable core component RTP regulation and application, however, large Stokes shift characteristics pose certain challenges ORTP. Here, new family phosphors are synthesized realized through crystal assembly water phase. Remarkably, compared to materials obtained phases, enabled long‐lived up 2.3 s quantum yield reached as high 29.27%. addition efficient green form, such dark possessed thermal stability flexible tunability. Moreover, superiority selected components demonstrated by comparing them polymer proposed show great potential programmable information encryption/anti‐counterfeiting.

Язык: Английский

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Unveiling the potential of triphenylphosphine salts in tuning organic room temperature phosphorescence

Chemical Communications, Год журнала: 2024, Номер 60(70), С. 9328 - 9339

Опубликована: Янв. 1, 2024

This article summarizes the potential of TPP salts in tuning RTP properties and their applications multi-level information encryption, high-level anticounterfeiting tags, X-ray scintillators.

Язык: Английский

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Achieving Near‐Infrared Phosphorescence Supramolecular Hydrogel Based on Amphiphilic Bromonaphthalimide Pyridinium Hierarchical Assembly

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 26, 2024

Abstract Phosphorescent supramolecular hydrogels are currently a prevalent topic for their great promise in various photonic applications. Herein, an efficient near‐infrared (NIR) phosphorescence hydrogel is reported via the hierarchical assembly strategy aqueous solution, which fabricated from amphiphilic bromonaphthalimide pyridinium derivative (G), exfoliated Laponite (LP) nanosheets, and polymeric polyacrylamide (PAAm). Initially, G spontaneously self‐aggregates into spherical nanoparticles covered with positively charged units emits single fluorescence at 410 nm. Driven by electrostatic interactions negatively subsequently function as cross‐linked binders coassemble LP engendered red room‐temperature (RTP) up to 620 Benefiting hydrogen‐bonding interactions‐mediated physical cross‐linkage, further introduction of PAAm not only significantly elevates mechanical strength showing fast self‐healing capability, but also increases lifetime 2.49 4.20 ms, especially generating even higher temperature ( τ 363 K = 2.46 ms). Additionally, RTP energy transfer occurs after doping small amount organic dye heptamethine cyanine (IR780) acceptor hydrogels, resulting long‐lived NIR emission 823 nm high donor/acceptor ratio, successfully applied cell labeling window.

Язык: Английский

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Room temperature phosphorescent wood hydrogel

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Дек. 4, 2024

Room temperature phosphorescent (RTP) hydrogels exhibit great potential but show poor mechanical performance (Tensile strengthen <1 MPa) and non-tunable RTP performance, hindering their practical applications. Here, we develop wood hydrogel (W-hydrogel) by the in situ polymerization of acrylamide presence delignified wood. As a result molecular interactions between components polyacrylamide, W-hydrogel tensile 38.4 MPa green emission with lifetime 32.5 ms. Moreover, strength are increased to 153.8 69.7 ms, upon treating ethanol. Significantly, is switched alternating "ethanol water" treatments. Additionally, used as energy donor order produce red afterglow using RhB via an transfer process. Taking advantage these properties, processed into multiple hydrogel-based luminescent materials. Hydrogels room phosphorescence have number applications, properties can limit potential. authors report wood-based phosphorescence,

Язык: Английский

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Simplifying Complexity: Integrating Color Science for Predictable Full-color and On-demand Persistent Luminescence Using Industrial Disperse Dyes

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Developing color-tunable ultralong room temperature phosphorescence (RTP) materials with variable afterglow is essential for applications in displays, sensors, information encryption, and optoelectronic devices. However, designing full-color RTP persistent luminescence remains a significant challenge. Here, we propose straightforward strategy to achieve predictable using readily available disperse dyes polymeric systems,

Язык: Английский

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Building a Highly Stable Red/Near Infrared Afterglow Library with Highly Branched Structures

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Achieving organic red/near infrared (NIR) phosphorescence at high temperatures is theoretically challenging because of the severe nonradiative transitions excited triplet states with low energy gaps. This study realizes bright and persistent red/NIR afterglow excellent high-temperature resistance up to 413 K via highly efficient (≈100%) resonance transfer (PRET) from rationally designed branched luminogens as donors dyes acceptors, coupled optimized aggregated structures. According systematic investigations, abundant internal cavities formed by in solid ensure dye loading space limitation, which can considerably suppress temperatures, promoting a stability. Moreover, 16 types host-guest systems varied topological structures different various sizes confirm universality strategy. provides an approach achieve stable afterglow.

Язык: Английский

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Encapsulation of essential oil in cyclodextrin: An exploration of rational design, molecular interactions, and activity assessment

Industrial Crops and Products, Год журнала: 2025, Номер 226, С. 120611 - 120611

Опубликована: Янв. 31, 2025

Язык: Английский

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An Aggregation-Induced Room Temperature Phosphorescence Probe for the Efficient and Selective Detection of Heparin and Protamine

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 29, 2025

Heparin is a vital macromolecule that regulates blood coagulation, while protamine an essential polypeptide clinically used to counteract heparin overdose. Detecting both and its antidote under physiological conditions crucial for biological clinical applications. This report introduces cucurbituril[8] (CB[8])-based phosphorescent probe their detection. The method employs nanoassembly induced phosphorescence switch-on mechanism sensing disassembly switch-off approach An arginine-rich guest forms supramolecular complex with heparin, enhancing secondary confinement enabling Conversely, sulfate, as stronger competitor disrupts the probe-heparin aggregates, leading emission quenching sensing. sensor demonstrated high selectivity in detecting analytes samples, such human serum urine. detection limits were determined be 61 82 ng/mL 10% HBS, respectively.

Язык: Английский

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Highly Efficient Purely Organic Room‐Temperature Phosphorescence of Phenoselenazine Derivatives via a Synergistic Strategy of Intramolecular Locking and Steric Donor Substituent

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Pure organic room‐temperature phosphorescent (RTP) materials have received significant attention recently because of their wide potential applications. However, RTP that lack host–guest interactions or hydrogen and ionic bonds typically exhibit limited phosphorescence quantum yields in amorphous films, owing to severe nonradiative decay transition‐forbidden triplet excitons caused by molecular rotations vibrations. Herein, a design strategy an intramolecular‐locking core (FPSeZPh) integrated with steric donor substituents (FPSeZPh‐TMCz) is proposed modify the parent phenoselenazine molecule (PSeZPh), which can not only restrict intramolecular motions suppress path excited states, but also effectively accelerate radiative process simultaneously. Benefiting from these synergistic effects, bright emission observed for both FPSeZPh FPSeZPh‐TMCz efficiencies up 83.3% doped polystyrene among best results emitters reported so far films. Moreover, are applied construct film sensors trace oxygen detection high quenching constants 5.5 × 10 −4 ppm −1 . These findings provide valuable insights into highly efficient metal‐free offer broad opportunities optical optoelectronic

Язык: Английский

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