ArticleRSC advances2019
A novel method for the preparation of solvent-free, microwave-assisted and nitrogen-doped carbon dots as fluorescent probes for chromium(vi) detection and bioimaging.
Article in RSC advances, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Facile Synthesis of Biomass N, S-CDs for Fluorescent Detection of Tetracycline in Wastewater.Molecules (Basel, Switzerland) · 2026Article
- Green Synthesis of Nitrogen-Doped Carbon Dots fromSensors (Basel, Switzerland) · 2025Article
- Fluorescence Enhanced Water-Soluble Ruthenium Complex: Advancing Precision in Cr(VI) Detection and Quantification.Journal of fluorescence · 2025Article
- Red Emitting Solid-State CDs/PVP with Hydrophobicity for Latent Fingerprint Detection.Materials (Basel, Switzerland) · 2024Article
- A polystyrene-based ESIPT fluorescent polymeric probe for highly sensitive detection of chromium(vi) ions and protein staining.RSC advances · 2023Article
- Carbon Dot-Modified Branched TiOACS omega · 2023Article
- Improved citric acid-derived carbon dots synthesis through microwave-based heating in a hydrothermal pressure vessel.RSC advances · 2022Article
- Inner-filter Effect Induced Fluorescence Quenching of Carbon Dots for Cr(VI) Detection with High Sensitivity.Journal of fluorescence · 2022Article
- Synthesis of intrinsic dual-emission type N,S-doped carbon dots for ratiometric fluorescence detection of Cr (VI) and application in cellular imaging.Analytical and bioanalytical chemistry · 2022Article
- Article
- Review
- Carbon dots derived fromJournal of pharmaceutical analysis · 2022Article
- A Review of Fluorescent Carbon Dots, Their Synthesis, Physical and Chemical Characteristics, and Applications.Nanomaterials (Basel, Switzerland) · 2021Review
- Carbon Dots: Zero-Dimensional Carbon Allotrope with Unique Photoinduced Redox Characteristics.ACS omega · 2020Review
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Authors and funding
6 authors.
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Abstract
Chromium(vi) [Cr(vi)] has been shown to be toxic to organisms due to its mutagenicity and carcinogenicity. Therefore, the exploitation of probes with low toxicity and high sensitivity for Cr(vi) detection is needed. In this study, a one-step, solvent-free, and microwave-assisted method was developed for the preparation of nitrogen-doped carbon dots (N-CDs). The reaction could be finished in just three minutes, and the yield of the dots could reach 58.5%; the as-prepared N-CDs exhibited excellent water solubility, emitted bright cyan fluorescence with a high quantum yield of 38.88%, and possessed excitation- and concentration-dependent characteristics. The N-CDs could be effectively applied to Cr(vi) detection with a linear range of 1-100 μM, and the detection limit could be as low as 0.12 μM. The quenching mechanism was responsible for the inner filter effect, and the quenched fluorescence could be recovered with a linear range of 5-100 μM by the addition of ascorbic acid. We showed that the fluorescent probes could even be employed for the detection of Cr(vi) in river water and for bio-imaging because of their nearly zero cytotoxicity; this showed the potential application of these probes in ion detection and cellular bioimaging. Herein, we have provided an effective strategy to rapidly obtain high-quality N-CDs using a solid-phase microwave method, and the as-prepared N-CDs exhibit various potential applications in environmental and biological fields.
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