ArticleScientific reports2021
A rich gallery of carbon dots based photoluminescent suspensions and powders derived by citric acid/urea.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed.
- Tuning carbon quantum dot optics through nitrogen surface chemistry.RSC advances · 2026Article
- Hydrogen-Bonded Molecular Clusters Transform into Surface-Passivated Fluorophores in Carbon Nanodots: Mechanistic Insight and Sensing Application Toward Bilirubin and CuChemphyschem : a European journal of chemical physics and physical chemistry · 2026Article
- Fabrication of Size-Controlled Carbon Dots with Biofilm-Disrupting Activity for Antibacterial Applications.International journal of molecular sciences · 2026Article
- Rhodamine B-Modified Carbon Dots with EDTA Masking Strategy for Selective Detection of Cu²⁺.Journal of fluorescence · 2026Article
- Design, Synthesis, and Characterization ofACS omega · 2026Article
- Microwave-Assisted Synthesis of Nitrogen-Doped Carbon Dots for Sensitive Fluorescence-Based Urea Detection in Soil.Journal of fluorescence · 2025Article
- Dual-Mode Optical Detection of Sulfide Ions Using Copper-Anchored Nitrogen-Doped Graphene Quantum Dot Nanozymes.Biosensors · 2025Article
- Fluorescent Nitrogen-doped Carbon Dots-based Turn-off Sensor for Bilirubin.Journal of fluorescence · 2025Article
- Structure Matters: Tailored Graphitization of Carbon Dots Enhances Photocatalytic Performance.ACS nano · 2025Article
- Enhancing the Fluorescence and Antimicrobial Performance of Carbon Dots via Hypochlorite Treatment.Nanomaterials (Basel, Switzerland) · 2025Article
- Microwave-Assisted Synthesis of N, S Co-Doped Carbon Quantum Dots for Fluorescent Sensing of Fe(III) and Hydroquinone in Water and Cell Imaging.Nanomaterials (Basel, Switzerland) · 2024Article
- Carbon quantum dots composite for enhanced selective detection of dopamine with organic electrochemical transistors.Mikrochimica acta · 2024Article
- Carbon Dots: A Review with Focus on Sustainability.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Review
- Review
- Microporous Fluorescent Poly(D,L-lactide) Acid-Carbon Nanodot Scaffolds for Bone Tissue Engineering Applications.Materials (Basel, Switzerland) · 2024Article
- An overview on animal/human biomass-derived carbon dots for optical sensing and bioimaging applications.RSC advances · 2023Review
- Photothermal therapy using graphene quantum dots.APL bioengineering · 2023Review
- Resculpting carbon dots via electrochemical etching.Scientific reports · 2023Article
- Citric Acid-Based Intrinsic Band-Shifting Photoluminescent Materials.Research (Washington, D.C.) · 2023Review
- Chitosan-Based Carbon Dots with Applied Aspects: New Frontiers of International Interest in a Material of Marine Origin.Marine drugs · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study we demonstrate simple guidelines to generate a diverse range of fluorescent materials in both liquid and solid state by focusing on the most popular C-dots precursors, i.e. the binary systems of citric acid and urea. The pyrolytic treatment of those precursors combined with standard size separation techniques (dialysis and filtration), leads to four distinct families of photoluminescent materials in which the emissive signal predominantly arises from C-dots with embedded fluorophores, cyanuric acid-rich C-dots, a blend of molecular fluorophores and a mixture of C-dots with unbound molecular fluorophores, respectively. Within each one of those families the chemical composition and the optical properties of their members can be fine-tuned by adjusting the molar ratio of the reactants. Apart from generating a variety of aqueous dispersions, our approach leads to highly fluorescent powders derived from precursors comprising excessive amounts of urea that is consumed for the build-up of the carbogenic cores, the molecular fluorophores and the solid diluent matrix that suppresses self-quenching effects.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.