Carbon Dots‐Inked Paper with Single/Two‐Photon Excited Dual‐Mode Thermochromic Afterglow for Advanced Dynamic Information Encryption

Advanced Materials, Год журнала: 2024, Номер 36(31)

Опубликована: Май 13, 2024

Achieving thermochromic afterglow (TCAG) in a single material for advanced information encryption remains significant challenge. Herein, TCAG carbon dots (CDs)-inked paper (CDs@Paper) is achieved by tuning the temperature-dependent dual-mode of room temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF). The CDs are synthesized through thermal treatment levofloxacin melting boric acid with postpurification via dialysis. CDs@Paper exhibit both excitation-dependent color properties. exhibits dynamic changes from blue at high temperatures to yellow low adjusting proportion TADF phosphorescence. Notably, two-photon CDs-based materials time-dependent colors first time. Moreover, leveraging opposite emission responses temperature, demonstrate temperature-sensing capabilities across wide range. Furthermore, CDs@Paper-based 3D code containing successfully developed encryption.

Язык: Английский

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Long-lived dynamic room temperature phosphorescent carbon dots for advanced sensing and bioimaging applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 516, С. 215987 - 215987

Опубликована: Май 31, 2024

Язык: Английский

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Acceptor engineering of quinone-based cycloparaphenylenes via post-synthesis for achieving white-light emission in single-molecule

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 7, 2025

Developing donor-acceptor [n]cycloparaphenylenes (D-A [n]CPPs) with multiple emissions from different emissive states remains challenging yet crucial for achieving white-light emission in single-molecule. Here, we report our explorations into acceptor engineering of quinone-based D-A [10]CPPs (Nq/Aq/Tq[10]CPPs) via a post-lateral annulation using Diels-Alder reactions oxTh[10]CPP. X-ray analysis reveals that Nq[10]CPP displays side by packing naphthoquione stacking while Aq[10]CPP adopts an intercalated conformation through anthraquinone interaction. Fluorescence investigations reveal the display distinctive acceptor-dependent dual-emission both locally excited state and charge transfer after single-wavelength excitation organic solvents, consequently leading to multicolor emissions, particular, CHCl3 Aq[10]CPP. In THF/water mixture, oxTh[10]CPP wide range fluorescence including as increasing fraction water, accompanying formation nanoparticles demonstrated Tyndall effect SEM. Interestingly, can be switched white blue upon redox. Our demonstrate not only endows two distint but also highlights effective post-synthetic strategy functionalizing CPP nanohoops desirable properties. authors yield emission.

Язык: Английский

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Recent advances of biomass-derived carbon dots with room temperature phosphorescence characteristics

Nano Today, Год журнала: 2024, Номер 56, С. 102257 - 102257

Опубликована: Апрель 13, 2024

Язык: Английский

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A novel dual-function fluorescence sensor Eu/CDs@MOF-808 for the sensitive detection of adenosine triphosphate and uric acid

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156811 - 156811

Опубликована: Окт. 1, 2024

Язык: Английский

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Multifunctional Thermally Activated Delayed Fluorescence Carbon Dots for Temperature‐Responsive Sensor, Information Encryption, and Organelle Imaging

Advanced Functional Materials, Год журнала: 2024, Номер 34(40)

Опубликована: Июль 10, 2024

Abstract Thermally activated delay fluorescence (TADF) has great potential for information encryption, temperature detection, and bioimaging due to its long‐lived luminescence, temperature‐sensitive high signal‐to‐noise ratio. However, it is still a challenge establish TADF in aqueous environments. In this study, the composite with (M‐FNCDs) prepared using fluorine‐nitrogen co‐doped carbon dots (FNCDs) melamine. It worth mentioning that M‐FNCDs show stable under long‐wavelength excitation (470 nm) Moreover, distinctive temperature‐responsive properties exhibit good linear relationships range of 77–370 K. Simultaneously, suspension as ink utilized realize encryption/decryption their afterglow cannot be quenched an solution. More importantly, biocompatibility can target mitochondria lysosomes living cells, first time achieve ratio low background signal imaging organelles. This work proposes new strategy prepare solutions extend material applications future.

Язык: Английский

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Machine learning-assisted carbon dots synthesis and analysis: state of the art and future directions

TrAC Trends in Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 118141 - 118141

Опубликована: Янв. 1, 2025

Язык: Английский

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A review for carbon dots-based fluorescent sensing tools for antibiotic and pesticide residues progress, challenge and perspective

Food Control, Год журнала: 2025, Номер 172, С. 111201 - 111201

Опубликована: Фев. 6, 2025

Язык: Английский

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Advance of Near‐Infrared Emissive Carbon Dots in Diagnosis and Therapy: Synthesis, Luminescence, and Application

Advanced Healthcare Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

Abstract Carbon dots (CDs) with good optical properties, biocompatibility, easy functionalization, and small size have attracted more attention laid a foundation for their applications in the biomedicine field. CDs emitted near‐infrared regions (NIR‐CDs) can achieve high penetration depth imaging produce cytotoxic substance disease treatment. Therefore, NIR‐CDs are promising materials to realize high‐quality imaging‐guided diagnostic therapeutic integration. This review first introduces current mainstream synthesis methods of by “top–down” “bottom–up”. Second, luminescence modes introduced, mechanisms based on carbon core state, surface molecular crosslinking enhanced emission summarized. Third, principles imaging, drug delivery, non‐invasive therapeutics introduced from view diagnosis therapy. Finally, prospects challenges biomedical biotechnological outlined.

Язык: Английский

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Shiny quantum dots: synthesis, properties, and electroluminescent light-emitting diodes

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(34), С. 22417 - 22441

Опубликована: Янв. 1, 2024

We provide an overview of recent advances in the structure, preparation, and optical properties various quantum dots (QDs), discuss strategies for improving electroluminescence performance response to current challenges QD research.

Язык: Английский

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