Photoluminescence mechanisms of red-emissive carbon dots derived from non-conjugated molecules

Science Bulletin, Journal Year: 2022, Volume and Issue: 67(14), P. 1450 - 1457

Published: June 18, 2022

Language: Английский

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Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(18), P. 11047 - 11136

Published: Sept. 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

Language: Английский

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Red-emitting, self-oxidizing carbon dots for the preparation of white LEDs with super-high color rendering index

Science China Chemistry, Journal Year: 2021, Volume and Issue: 64(9), P. 1547 - 1553

Published: June 22, 2021

Language: Английский

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Recent advances of carbon dots as new antimicrobial agents

SmartMat, Journal Year: 2022, Volume and Issue: 3(2), P. 226 - 248

Published: June 1, 2022

Abstract Due to the COVID‐19 pandemic, many rapid antimicrobial agents have developed intensively. Carbon dots (CDs), a new type of carbon‐based nanomaterials, shows great potential against emerging infectious diseases and antimicrobial‐resistant infections due their unique optical properties, excellent biocompatibility, easy surface modification. With definition CDs structure synthesis, characteristic technology improvement, research on as has made significant progress. However, lack high repeatable exact preparation methods, regular activity make it far from practical application. In this review, we summarize most recent progress challenges antimicrobial. First, an overview characteristics properties is given, advantage applied further discussed. Then, focuses mechanisms under different conditions, critical factors affecting activity, applications. Finally, main future perspectives are proposed.

Language: Английский

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Phenylenediamine-derived near infrared carbon dots: The kilogram-scale preparation, formation process, photoluminescence tuning mechanism and application as red phosphors

Carbon, Journal Year: 2022, Volume and Issue: 192, P. 198 - 208

Published: Feb. 28, 2022

Language: Английский

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Preparation and characterization of B, S, and N-doped glucose carbon dots: Antibacterial, antifungal, and antioxidant activity

Sustainable materials and technologies, Journal Year: 2022, Volume and Issue: 32, P. e00397 - e00397

Published: Jan. 29, 2022

Language: Английский

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Aggregation in carbon dots

Aggregate, Journal Year: 2022, Volume and Issue: 3(6)

Published: Nov. 21, 2022

Abstract Carbon dots (CDs) possess outstanding luminescence properties, making them widely used in optical displays, anti‐counterfeiting systems, bioimaging, and sensors. Presently, there is much debate about the classification of CDs, as well their formation process, structure, fluorescence mechanisms. Aggregation plays an important role (e.g., aggregation‐induced emission) yet seldom studied detail. This review aims fill this knowledge gap, by first exploring how aggregation leads to different types CDs graphene quantum dots, carbon carbonized polymer dots), followed a detailed examination effect morphology on properties application CDs. Finally, opportunities challenges for various applications are discussed, with need better mechanistic understanding being imperative.

Language: Английский

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Carbon Dots as a Potential Therapeutic Agent for the Treatment of Cancer‐Related Anemia

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(19)

Published: March 16, 2022

Due to the adverse effects of erythropoietin (EPO) on cancer patient survival, it is necessary develop new agents that can be used efficiently manage and treat cancer-related anemia. In this study, novel distinctive carbon dots, J-CDs, derived from jujube are designed, synthesized, characterized. Based obtained results, material comprises sp2 sp3 atoms, as well oxygen/nitrogen-based groups, specifically promotes proliferation erythroid cells by stimulating self-renewal progenitor in vitro vivo. Moreover, J-CDs have no discernible tumor metastasis, unlike EPO. Transcriptome profiling suggests upregulate molecules involved hypoxia response, they also significantly increase phosphorylation levels STAT5, major transducer signals for cell proliferation. Overall, study demonstrates effectively promote erythrocyte production without affecting metastasis; thus, may promising treatment

Language: Английский

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Ionic Liquid‐Assisted Fast Synthesis of Carbon Dots with Strong Fluorescence and Their Tunable Multicolor Emission

Small, Journal Year: 2022, Volume and Issue: 18(11)

Published: Jan. 17, 2022

Abstract Conventional synthesis of carbon dots (CDs) mostly involves a hydrothermal or solvent‐thermal reaction which needs relatively high temperature and pressure. In this work, ionic liquid is used to assist in fast synthesizing CDs with an ultrahigh photoluminescent quantum yield (98.5%) by heating at low (≤100 °C) atmospheric addition, through approach, tunable multicolor emissive can be successfully achieved for preparing high‐performance white light‐emitting diodes. Theoretical computation proves that the activity significantly enhanced liquids. Density functional theory calculation reveals size graphite nitrogen ratios have effect on bandgap reduction, resulting redshift emission, good agreement experimental results. This simple promising approach using affords facilitation CDs‐based luminescent materials manufacturing devices.

Language: Английский

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Advances, opportunities, and challenge for full-color emissive carbon dots

Chinese Chemical Letters, Journal Year: 2021, Volume and Issue: 33(2), P. 613 - 625

Published: Aug. 20, 2021

Language: Английский

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