Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Chemical Reviews, Год журнала: 2023, Номер 123(18), С. 11047 - 11136

Опубликована: Сен. 7, 2023

Advances in nanotechnology and nanomaterials have attracted considerable interest play key roles scientific innovations diverse fields. In particular, increased attention has been focused on carbon-based exhibiting extended structures unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, nanodiamonds, dots, possess excellent bioaffinities superior fluorescence properties that make suitable for application to environmental biological sensing, imaging, therapeutics. This review provides a systematic overview of the classification structural properties, design principles preparation methods, optical sensing applications nanomaterials. Recent interesting breakthroughs sensitive selective imaging heavy metal pollutants, hazardous substances, bioactive molecules as well information encryption, super-resolution photoacoustic phototherapy nanomedicine delivery are main focus this review. Finally, future challenges prospects materials highlighted envisaged. presents comprehensive basis directions designing, developing, applying fascinating fluorescent sensors fabricated based specific requirements numerous research

Язык: Английский

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Light of carbon: Recent advancements of carbon dots for LEDs

Nano Energy, Год журнала: 2023, Номер 114, С. 108623 - 108623

Опубликована: Июнь 20, 2023

Язык: Английский

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Recent advancements of solid-state emissive carbon dots: A review

Coordination Chemistry Reviews, Год журнала: 2023, Номер 498, С. 215469 - 215469

Опубликована: Сен. 29, 2023

Язык: Английский

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Multicolor Afterglow Carbon Dots: Luminescence Regulation, Preparation, and Application

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Фев. 6, 2024

Abstract Afterglow materials have attracted much attention owing to their long luminescence lifetimes, large Stokes shifts, and emission without real‐time excitation. Compared with traditional organic afterglow materials, carbon dots (CDs), as a new material, superior properties such easy preparation, low toxicity, cost. The color of CDs can be regulated by external factors excitation wavelength, temperature, time, which is highly significant for expanding the diversified applications make them available biotechnology information applications. This review summarizes research progress multicolor in recent years, including regulation strategies, preparation methods, First, are classified into three strategies: room temperature phosphorescence (RTP), thermally activated delayed fluorescence converted RTP, based on Förster resonance energy transfer, strategies regulating analyzed. Second, methods achieving summarized both matrix‐free matrix‐confined aspects. Then, anticounterfeiting encryption, sensing bioimaging introduced detail. Finally, future challenges opportunities prospected provide ideas controlled design wide application.

Язык: Английский

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Tailored Fabrication of Full‐Color Ultrastable Room‐Temperature Phosphorescence Carbon Dots Composites with Unexpected Thermally Activated Delayed Fluorescence

Advanced Materials, Год журнала: 2024, Номер 36(27)

Опубликована: Апрель 23, 2024

Abstract The development of single‐system materials that exhibit both multicolor room‐temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) with tunable after glow colors channels is challenging. In this study, four metal‐free carbon dots (CDs) are developed through structural tailoring, panchromatic high‐brightness RTP achieved via strong chemical encapsulation in urea. maximum lifetime quantum yield reaches 2141 ms 56.55%, respectively. Moreover, CDs‐IV@urea, prepared coreshell interaction engineering, exhibits a dual afterglow red green TADF. degree conjugation functional groups precursors affects the binding interactions nitrogen cladding on CDs, which turn stabilizes triplet energy levels gap between S 1 T (Δ E ST ) to induce RTP. enhanced wrapping lowers Δ , promoting reverse intersystem crossing, leads This fully state, thus stabilizing material water, even extreme environments such as acids oxidants. These tested multicolor, time, temperature multiencryption well vivo bioimaging. Hence, these have promising practical applications information security biomedical diagnosis treatment.

Язык: Английский

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Doped Carbon Dots Enable Highly Efficient Multiple‐Color Room Temperature Phosphorescence

Advanced Optical Materials, Год журнала: 2023, Номер 12(7)

Опубликована: Окт. 26, 2023

Abstract Colloidal carbon dots (C‐dots) are considered as promising heavy‐metal‐free materials to achieve room‐temperature phosphorescence (RTP) properties for applications, such photoelectronic devices, information encryption, and bio‐imaging. However, most of the current obtained RTP C‐dots have a short lifetime with relatively low quantum yield (QY). In this work, large‐scale synthesized via vacuum heating approach multiple emissions (blue, green, yellow), long high 1.92 s, QY 34.4% by selecting different types precursors, which is superior reported C‐dots. The atoms doping strong bonding between neighbored promoted contributes excellent properties. As proof‐of‐concept, as‐obtained used optical ink flexible security codes, exhibiting bright shape 1.37 s. This work offers an efficient producing high‐quality C‐dots, can be applied anti‐counterfeiting encryption systems.

Язык: Английский

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Intriguing Room Temperature Phosphorescence in Crystalline Porous Organic Frameworks

Advanced Functional Materials, Год журнала: 2023, Номер 33(52)

Опубликована: Сен. 13, 2023

Abstract Organic room temperature phosphorescence (RTP) materials have become a hot topic in the field of luminescence wherein crystalline porous organic frameworks (metal–organic (MOFs), hydrogen‐bonded (HOFs), covalent (COFs))‐based RTP are receiving considerable attention. Beyond all doubt, frameworks‐based perfectly integrate advantages and materials. This review provides timely brief outline for development including construction strategy MOFs/HOFs/COFs‐based their performance as well potential applications. Moreover, conclusion outlook also discussed to present challenges prospects further high‐performance

Язык: Английский

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Phosphorescent carbon dots: Intermolecular interactions, properties, and applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 503, С. 215642 - 215642

Опубликована: Янв. 2, 2024

Язык: Английский

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Carbon Dots: A Bright Future as Anticounterfeiting Encoding Agents

Small, Год журнала: 2024, Номер 20(28)

Опубликована: Фев. 23, 2024

Abstract Counterfeit products and data vulnerability present significant challenges in contemporary society. Hence, various methods technologies are explored for anticounterfeiting encoding, with luminescent tracers, particularly carbon dots (CDs), emerging as a notable solution. CDs offer promising contributions to product security, environmental sustainability, the circular economy. This critical review aims highlight luminescence responsiveness of physical chemical stimuli, achieved through nanoengineering their structure. The discussion will delve into tunable mechanisms decay times CDs, investigating preferential excitations such up‐conversion, delayed fluorescence, room temperature phosphorescence, persistent luminescence, energy charge transfer, well photo‐chemical interactions. These insights crucial advancing solutions. Following this exploration, systematic focus on research CDs' smart encoding applications, encompassing anticounterfeiting, tracing, quality certification, information encryption. Finally, address key implementing CDs‐based technology, providing specific strategies aimed at maximizing stability efficacy applications.

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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