Results 21 to 30 of about 94,353 (263)

A Review of Carbon Dots Produced from Biomass Wastes

open access: yesNanomaterials, 2020
The fluorescent carbon dot is a novel type of carbon nanomaterial. In comparison with semiconductor quantum dots and fluorescence organic agents, it possesses significant advantages such as excellent photostability and biocompatibility, low cytotoxicity ...
Chao Kang   +4 more
doaj   +1 more source

Carbon dots for photothermal applications

open access: yesFrontiers in Chemistry, 2022
Carbon dots are zero-dimensional nanomaterials that have garnered significant research interest due to their distinct optical properties, biocompatibility, low fabrication cost, and eco-friendliness. Recently, their light-to-heat conversion ability has led to several novel photothermal applications.
Salar Balou   +2 more
openaire   +3 more sources

Carbon “quantum” dots for bioapplications

open access: yesExperimental Biology and Medicine, 2021
Carbon “quantum” dots or carbon dots (CDots) exploit and enhance the intrinsic photoexcited state properties and processes of small carbon nanoparticles via effective nanoparticle surface passivation by chemical functionalization with organic species.
Dekai Yuan   +4 more
openaire   +2 more sources

Green synthesis of carbon quantum dots from sumac: characterization and investigation with cyclic voltammetry technique

open access: yesCumhuriyet Science Journal, 2020
Carbon dots, due to their minimal size, non-toxicity, simple, cheap and easy synthesis; Among the studies on nanostructured materials that have attracted attention in recent years; has become a popular study topic for researchers.
Hasan Eskalen, Mustafa Çeşme
doaj   +1 more source

Photoluminescence mechanism of carbon dots: triggering high-color-purity red fluorescence emission through edge amino protonation

open access: yesNature Communications, 2021
Carbon dots have garnered great interest due to their optical properties, however, engineering of the optical properties remains a challenge. Here, Zhang et al. produce carbon dots with a high color purity, providing a useful approach for engineering the
Qing Zhang   +4 more
doaj   +1 more source

High Stability Carbon Dots Phosphor and Ultra-High Color Rendering Index White Light-Emitting Diodes

open access: yesIEEE Photonics Journal, 2022
A new kind of carbon dots based phosphor is developed for light emitting diodes (LED) by adsorbing carbon dots to starch particles. The bonding mechanism is based on hydrogen bonding of surface functional groups of carbon dots and starch particles ...
Yuxian Yan   +4 more
doaj   +1 more source

Applications of carbon dots and its modified carbon dots in bone defect repair

open access: yesJournal of Biological Engineering, 2022
AbstractBone defect repair is a continual and complicated process driven by a variety of variables. Because of its bright multicolor luminescence, superior biocompatibility, water dispersibility, and simplicity of synthesis from diverse carbon sources, carbon dots (CDs) have received a lot of interest.
Longchuan Zhu   +6 more
openaire   +3 more sources

A Comparative Study of Top-Down and Bottom-Up Carbon Nanodots and Their Interaction with Mercury Ions

open access: yesNanomaterials, 2021
We report a study of carbon dots produced via bottom-up and top-down routes, carried out through a multi-technique approach based on steady-state fluorescence and absorption, time-resolved fluorescence spectroscopy, Raman spectroscopy, infrared ...
Federico Bruno   +8 more
doaj   +1 more source

Synthesis, Purification, and Characterization of Carbon Dots from Non-Activated and Activated Pyrolytic Carbon Black

open access: yesNanomaterials, 2022
In this work, carbon dots were created from activated and non-activated pyrolytic carbon black obtained from waste tires, which were then chemically oxidized with HNO3.
Reyna Berenice González-González   +5 more
doaj   +1 more source

Coal based carbon dots: Recent advances in synthesis, properties, and applications

open access: yesNano Select, 2021
Carbon dots are zero‐dimensional carbon nanomaterials with quantum confinement effects and edge effects, which have aroused great interests in many disciplines such as energy, chemistry, materials, and environmental applications.
Ziguo He   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy