Chem, Journal Year: 2023, Volume and Issue: 10(1), P. 134 - 171
Published: Oct. 19, 2023
Language: Английский
Small Science, Journal Year: 2022, Volume and Issue: 2(6)
Published: May 8, 2022
Carbon dots (CDs), comprising crystalline graphitized carbon cores and polymer surface groups, are currently attracting a lot of interest in biological fields owing to their fluorescent properties, high photostability, biocompatibility low toxicity. In addition, the easy preparation functionalization CDs stimulate development CDs‐based composite materials with specific functions. Presently, applications growing at remarkable speed, justifying need for up‐to‐date review articles that capture recent progress this blossoming field. review, breakthroughs synthesis, modification, optical toxicology biocatalytic platforms described. Further, research related bioimaging, biosensing, drug delivery, antibacterial, anticancer (photothermal therapy, photodynamic therapy synergistic therapy) antiviral therapies involving discussed detail. Finally, perspective on prospects challenges biomedicine biotechnology is provided.
Language: Английский
Citations
237
Small, Journal Year: 2022, Volume and Issue: 18(51)
Published: Nov. 3, 2022
Abstract As a relatively new type of fluorescent carbon‐based nanomaterials, multicolor carbon dots (MCDs) have attracted much attention because their excellent biocompatibility, tunable photoluminescence (PL), high quantum yield, and unique electronic physicochemical properties. The emission characteristics (CDs) obviously depend on the source precursor, reaction conditions, environment, which directly or indirectly determines CDs. Therefore, this review is first systematic classification summary multiple regulation methods synthetic MCDs reviews recent research progress in synthesis from variety precursor materials such as aromatic molecules, small organic natural biomass, focusing how different produce corresponding MCDs. This also introduces innovative applications fields biological imaging, light‐emitting diodes (LEDs), sensing, anti‐counterfeiting due to PL It hoped that by selecting appropriate adjustment methods, can inspire guide future design tailored MCDs, provide help for development multifunctional
Language: Английский
Citations
165
Trends in Chemistry, Journal Year: 2022, Volume and Issue: 5(1), P. 76 - 87
Published: Nov. 10, 2022
Language: Английский
Citations
163
Renewable and Sustainable Energy Reviews, Journal Year: 2022, Volume and Issue: 169, P. 112918 - 112918
Published: Sept. 15, 2022
Language: Английский
Citations
162
Light Science & Applications, Journal Year: 2022, Volume and Issue: 11(1)
Published: June 6, 2022
Abstract Due to the complex core–shell structure and variety of surface functional groups, photoluminescence (PL) mechanism carbon dots (CDs) remain unclear. o-Phenylenediamine (oPD), as one most common precursors for preparing red emissive CDs, has been extensively studied. Interestingly, emission CDs based on oPD have similar PL characteristics. Herein, we prepared six different oPD-based found that they had almost same absorption spectra after purification. Structural spectral characterization indicated core structures but polymer shells. Furthermore, single-molecule spectroscopy confirmed multi-modal those originated from transitions vibrational energy levels center in core. In addition, phenomenon “spectral splitting” single-particle was observed at low temperature, which these were unique materials with properties both organic molecules quantum dots. Finally, theoretical calculations revealed their potential polymerization mode structure. Moreover, proposed red-emitting precursors; is, regulates emission, shell intensity. Our work resolves controversy CDs. These findings provide a general guide exploration structural analysis other types
Language: Английский
Citations
157
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
Citations
123
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
Citations
112
Chinese Chemical Letters, Journal Year: 2022, Volume and Issue: 33(10), P. 4577 - 4582
Published: March 13, 2022
Language: Английский
Citations
105
Nano Research, Journal Year: 2022, Volume and Issue: 16(1), P. 1064 - 1083
Published: Sept. 8, 2022
Language: Английский
Citations
105
Accounts of Materials Research, Journal Year: 2022, Volume and Issue: 3(3), P. 319 - 330
Published: Jan. 25, 2022
ConspectusHydrogen evolution by the electrolysis of water is an important energy conversion process, especially for some intermittent systems. However, its practical applicability limited low energy-conversion efficiency and need expensive electrocatalysts. In response, carbon-based nanocomposites have gained substantial interest as promising alternatives to currently used precious metal catalysts. Among them, carbon dots (CDs) exhibited many outstanding features, including flexible composition, high conductivity, good dispersion, strong coordination. The past decade has seen remarkable advances in CD-based electrocatalysts hydrogen evolution, where CDs their derived hybrids shown impressive performance indispensable prospects future utilization. widespread use still requires development high-quality advanced synthesis strategies. New assessment techniques are also required elucidate unique functions composition regulation, structure fabrication, surface modification, host–guest interactions ultimately establish relationships among structure, activity.This Account based on previous studies our group focuses types that make excellent evolution. It draws evidence from a range characterization such aberration-corrected scanning transmission electron microscopy, X-ray absorption spectroscopy, photoelectron situ Fourier transform infrared atomic force microscopy. As result, general route fabricating efficient reported, structure–activity correlations demonstrated. Heteroatomic modification via regulation investigated. For example, first-principles density functional theory investigate properties molybdenum phosphide modified with nitrogen-doped CDs: introduction nitrogen atoms generate vacancies, thus reducing coordination number reaction sites enhancing electrocatalytic activity. effect CDs' spatial confinement due self-assembly elucidated, splicing novel CD–metal interfacial effects greatly stabilize active components improve catalytic efficiency. Finally, we offer knowledge insights current challenges research directions this field perspectives CD growth mechanisms, electrocatalyst synthesis, optimization, expanding applicability.
Language: Английский
Citations
101