ArticleMolecules (Basel, Switzerland)2017
Nitrogen-Doped Carbon Quantum Dots as Fluorescent Probes for Sensitive and Selective Detection of Nitrite.
Article in Molecules (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 61 citations in OpenAlex.
- Facile synthesis of long-wavelength fluorescent carbon dots: toward multifunctional applications in nitrite sensing and bioimaging.Mikrochimica acta · 2026Article
- Novel Carbon Dots Nanomaterials for the Precision Diagnosis and Treatment of Acute Lung Injury and Acute Respiratory Distress Syndrome: Mechanisms and Applications.International journal of nanomedicine · 2026Review
- Smart Paper-Based Nanosensor for Simultaneous Environmental eMonitoring of Nitrate and Nitrite.ACS measurement science au · 2025Article
- Nitrogen-doped carbon dots in food sensing: a review of detection mechanisms and applications.RSC advances · 2025Review
- Green Synthesis of Highly Fluorescent NCQDs: A Comprehensive Study on Synthesis, Characterization, Photophysical Properties, pH Sensing, Heavy Metal Detection, and Solvatochromic Behavior through Hydrothermal Method.Journal of fluorescence · 2025Article
- Microwave-Assisted Grafting of Coal onto Nitrogen-Doped Carbon Dots with a High Quantum Yield and Enhanced Photoluminescence Properties.Molecules (Basel, Switzerland) · 2024Article
- Chitosan-Based Carbon Dots with Applied Aspects: New Frontiers of International Interest in a Material of Marine Origin.Marine drugs · 2022Review
- Rapid and Sensitive Detection of Rutin in Food Based on Nitrogen-Doped Carbon Quantum Dots as Fluorescent Probe.Molecules (Basel, Switzerland) · 2022Article
- Lanthanide Molecular Species Generated FeMolecules (Basel, Switzerland) · 2022Article
- Monolithic Integrated OLED-OPD Unit for Point-of-Need Nitrite Sensing.Sensors (Basel, Switzerland) · 2022Article
- Localized Surface Plasmon Resonance Decorated with Carbon Quantum Dots and Triangular Ag Nanoparticles for Chlorophyll Detection.Nanomaterials (Basel, Switzerland) · 2021Article
- Production of nitrogen-doped carbon quantum dots with controllable emission wavelength, excellent sensing of FeRSC advances · 2021Article
- Preparation of Multifunctional N-Doped Carbon Quantum Dots fromPharmaceuticals (Basel, Switzerland) · 2021Article
- Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection.Nanomaterials (Basel, Switzerland) · 2020Article
- Novel nitrogen-doped carbon dots prepared under microwave-irradiation for highly sensitive detection of mercury ions.Heliyon · 2020Article
- Application of Graphene-Based Materials for Detection of Nitrate and Nitrite in Water-A Review.Sensors (Basel, Switzerland) · 2019Review
- Fluorometric determination of nitrite through its catalytic effect on the oxidation of iodide and subsequent etching of gold nanoclusters by free iodine.Mikrochimica acta · 2019Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrites are the upstream precursors of the carcinogenic nitrosamines, which are widely found in the natural environment and many food products. It is important to develop a simple and sensitive sensor for detecting nitrites. In this work, a fluorescence probe based on nitrogen-doped carbon quantum dots (N-CQDs) was developed for the sensitive and selective determination of nitrites. At pH 2, the fluorescence of N-CQDs can be selectively quenched by nitrite due to the fact N-nitroso compounds can be formed in the reaction of amide groups with nitrous acid, which results in fluorescence static quenching. Under optimal conditions, fluorescence intensity quenching upon addition of nitrite gives a satisfactory linear relationship covering the linear range of 0.2-20 μM, and the limit of detection (LOD) is 40 nM. Moreover, this method has been successfully applied to the determination of nitrites in tap water, which indicates its great potential for monitoring of nitrites in environmental samples.
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