A5074769675- Carbon and Quantum Dots Applications
- Advanced biosensing and bioanalysis techniques
- Nanocluster Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Advanced Nanomaterials in Catalysis
- Chalcogenide Semiconductor Thin Films
- DNA and Nucleic Acid Chemistry
- Advanced Photocatalysis Techniques
- Graphene and Nanomaterials Applications
- Biosensors and Analytical Detection
- Copper-based nanomaterials and applications
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Molecular Junctions and Nanostructures
- Electrocatalysts for Energy Conversion
- Spinal Fractures and Fixation Techniques
- Advanced battery technologies research
- RNA Interference and Gene Delivery
- Molecular Sensors and Ion Detection
- Spine and Intervertebral Disc Pathology
- Cancer-related molecular mechanisms research
- Advanced Biosensing Techniques and Applications
- Cervical and Thoracic Myelopathy
- Circular RNAs in diseases
Beijing Normal University
2016-2025
China Jiliang University
2023-2025
Dalian University
2024
Dalian University of Technology
2024
Second Xiangya Hospital of Central South University
2016-2024
Central South University
2010-2024
Qingdao University of Science and Technology
2024
Zhengzhou University
2023-2024
China North Industries Group Corporation (China)
2023-2024
Jiangsu University
2022-2024
Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon's intrinsic merits high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which fundamentally limit their display applications. Here we demonstrate multicolored narrow bandwidth (full 30 nm) from triangular a yield up to 54-72%. Detailed structural optical characterizations together...
Multicolor bandgap fluorescent carbon quantum dots (MCBF-CQDs) from blue to red with yield up 75% are synthesized using a solvothermal method. For the first time, monochrome electroluminescent light-emitting diodes (LEDs) MCBF-CQDs directly as an active emission layer fabricated. The maximum luminance of LEDs reaches 136 cd m-2 , which is best performance for CQD-based LEDs.
Red emissive carbon quantum dots (R‐CQDs) with yield of 53% is successfully prepared. An ultraviolet (UV)‐pumped CQD phosphors‐based warm white light‐emitting diode (WLED) realized for the first time and achieves a color rendering index 97. This work provides new avenue exploration low cost, environment‐friendly, high‐performance WLEDs.
Sulfur-doped graphene quantum dots (S-GQDs) with stable blue-green fluorescence were synthesized by one-step electrolysis of graphite in sodium p-toluenesulfonate aqueous solution. Compared GQDs, the S-GQDs drastically improved electronic properties and surface chemical reactivities, which exhibited a sensitive response to Fe3+. Therefore, used as an efficient fluorescent probe for highly selective detection Upon increasing Fe3+ concentration ranging from 0.01 0.70 μM, intensity gradually...
CuInS2 nanocrystals are viewed as very good candidates for solar harvesting and light emitting applications. Here we report an optimized noninjection method the synthesis of monodisperse pyramidal with sizes ranging from 3 to 8 nm. This synthetic route is able yield large amounts high quality nanoparticles, usually in gram scale one batch experiment. The structure surface studies showed that resulting pyramids tetragonal phase well-defined facets, while their functionalized dodecanethiol...
We report water-soluble, 3 nm uniform-sized graphene quantum dots (GQDs) with red emission prepared by electrochemical exfoliation of graphite in K<sub>2</sub>S<sub>2</sub>O<sub>8</sub> solution. Such GQDs show a great potential as biological labels for cellular imaging.
An overview of the synthesis, optical properties, luminescence mechanism, and optoelectronic applications CQDs is presented.
Biochar (BC) derived from bamboo pyrolysis and its modified forms were treated with chemical methods (oxidation either by KMnO4 or HNO3 base treatment NaOH) heat method. BC BCs investigated as adsorbents for target component (furfural) removal aqueous solution. The samples characterized to assess the effects of different treatments on structure surface chemistry BCs. results show that increase hydrophilicity BC, whereas causes opposite effect. Oxidation leads introduction a large number...
Abstract The development of efficient red bandgap emission carbon quantum dots (CQDs) for realizing high‐performance electroluminescent warm white light‐emitting diodes (warm‐WLEDs) represents a grand challenge. Here, the synthesis three red‐emissive electron‐donating group passivated CQDs (R‐EGP‐CQDs): R‐EGP‐CQDs‐NMe 2 , ‐NEt and ‐NPr is reported. R‐EGP‐CQDs, well soluble in common organic solvents, display bright at 637, 642, 645 nm, respectively, reaching highest photoluminescence yield...
Water-soluble multicolor fluorescent graphene quantum dots which are responsive to all-pH from 1 14 and wide temperature range have been prepared, demonstrated the great potential as a dual probe of pH in complicated environments such biological media.
The IR780 iodide (IR780) is recognized as an effective theranostic agent for simultaneous near-infrared fluorescence imaging and photothermal therapy (PTT). However, the rigid chloro-cyclohexenyl ring makes insoluble in almost all pharmaceutically acceptable solvents, which inevitably limits its clinical application. We report folic acid (FA)-functionalized graphene quantum dots (GQDs-FA) containing a large intact sp2 domain with carboxyl groups around edge. Such GQDs-FA possess...
The synthesis, optical properties, and biomedical applications of CDs are summarized.
Large doses of anticancer drugs entering cancer cell nuclei are found to be effective at killing cells and increasing chemotherapeutic effectiveness. Here we report red-emissive carbon quantum dots, which can enter into the not only but also stem cells. After doxorubicin was loaded concentration 30 μg/mL on surfaces average viability HeLa decreased 21%, while it 50% for free doxorubicin. The doxorubicin-loaded dots exhibited a good therapeutic effect by eliminating This work provides...
Carbon quantum dots (CQDs) feature bright and tunable photoluminescence, solution processability, low toxicity, showing great potential in optoelectronics. However, the large-scale synthesis of CQDs with near-unity photoluminescence yield (PLQY) has not been achieved so far. In this study, we perform radical-assisted hexagon-shaped (H-CQDs) delivering PLQY (96 %). Experimental theoretical analyses revealed that large vertically oriented transition dipole moment H-CQDs originating from high...
Abstract Carbon quantum dots are emerging as promising nanomaterials for next-generation displays. The elaborate structural design is crucial achieving thermally activated delayed fluorescence, particularly improving external efficiency of electroluminescent light-emitting diodes. Here, we report the synthesis onion-like multicolor fluorescence carbon with yields 42.3–61.0%. Structural, spectroscopic characterization and computational studies reveal that structures assembled from monomer...
A turn-on orange-red fluorescent nanosensor based on rhodamine B derivative-functionalized graphene quantum dots (RBD-GQDs) has been successfully synthesized for Fe(3+) detection with high sensitivity and selectivity. By connecting GQDs, the water solubility, sensitivity, photostability, biocompatibility of RBD are drastically improved. The most distinctive feature RBD-GQDs, which sets them apart from other previously reported fluorophores or is that they limits as low 0.02 μM demonstrated a...
Blue-yellow fluorescence–phosphorescence dual emission from single-component white emissive W-CNQDs with a high PLQE of 25% is reported for the first time.
Graphene quantum dots as smart probes for photoluminescence, electrochemiluminescence and electrochemical biosensors.
In this mini review, we update the latest research in design of high-performance WLEDs with different correlated color temperatures by tuning red component using emissive CQDs and single-component white CQDs.
In this study, we selected four different color fleshed sweet potatoes, purple- (Jizi 01), red- (Xinong 431), yellow- (Beijing 553) and white- (Shangshu 19) cultivars as test materials, analyzed nutrient composition, dietary fiber content, anthocyanins quantification, total phenolics also measured their antioxidant activity in types of potato. view differences flesh color, the contents appeared to be significantly different. Starch Beijing 553 Shangshu 19 were higher, but fat lower than...
With Co-MOFs as an oxidase-mimicking nanozyme, the AR oxidized product, non-fluorescent resazurin could be reduced to fluorescent resorufin by <sc>l</sc>-cysteine, which is specifically applied for fluorescence “turn-on” detection of <sc>l</sc>-cysteine.