ArticleMikrochimica acta2019
Yellow-emissive carbon dots with a large Stokes shift are viable fluorescent probes for detection and cellular imaging of silver ions and glutathione.
Article in Mikrochimica acta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed, 124 citations in OpenAlex.
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- Hydrothermal synthesis of nitrogen- and sulfur-co-doped carbon quantum dots from rice straw for fluorescent detection of HgRSC advances · 2026Article
- Dual Roles of Carbon Quantum Dots from Green Carbon Sources: A Fluorescence Sensor for FeNanomaterials (Basel, Switzerland) · 2025Article
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- Mn, N co-doped CDs as a fluorescent nanosensing platform for the detection of tannic acid and hafnium ion and in vitro fluorescence imaging of U2OS osteosarcoma cells.Mikrochimica acta · 2024Article
- Fluorescence Signal Amplification: Red Carbon Dots@SiOJournal of fluorescence · 2023Article
- Carbon Dots-Based Fluorescence Assay for the Facile and Reliable Detection of AgMolecules (Basel, Switzerland) · 2023Article
- Carbon Dot Emission Enhancement in Covalent Complexes with Plasmonic Metal Nanoparticles.Nanomaterials (Basel, Switzerland) · 2023Article
- Detection of Cobalamin and In Vitro Cell Imaging Based on Nitrogen-Doped Yellow Fluorescent Carbon Dots with Nano Architectonics.Materials (Basel, Switzerland) · 2022Article
- Fluorescent Carbon Dot-Supported Imaging-Based Biomedicine: A Comprehensive Review.Bioinorganic chemistry and applications · 2022Review
- Advances and Challenges of Fluorescent Nanomaterials for Synthesis and Biomedical Applications.Nanoscale research letters · 2021Review
- One-step synthesis of N, S-doped carbon dots with orange emission and their application in tetracycline antibiotics, quercetin sensing, and cell imaging.Mikrochimica acta · 2021Article
- Rapid and Green Fabrication of Carbon Dots for Cellular Imaging and Anti-Counterfeiting Applications.ACS omega · 2021Article
- Carbon Dots: An Emerging Smart Material for Analytical Applications.Micromachines · 2021Review
- Green Synthesis of Fluorescent Carbon Dots from Elaeagnus angustifolia and its Application as Tartrazine Sensor.Journal of fluorescence · 2021Article
- Yellow-Emitting Hydrophobic Carbon Dots via Solid-Phase Synthesis and Their Applications.ACS omega · 2020Article
- Surface plasmon-catalyzed oxidation of 4-aminodiphenyl disulfide for determination of AgMikrochimica acta · 2020Article
- An ultrasonic-assisted synthesis of leather-derived luminescent graphene quantum dots: catalytic reduction and switch on-off probe for nitro-explosives.RSC advances · 2020Article
- WSMikrochimica acta · 2020Article
- Facile Preparation of Stable Solid-State Carbon Quantum Dots with Multi-Peak Emission.Nanomaterials (Basel, Switzerland) · 2020Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
Yellow-emissive carbon dots (Y-CDs) were prepared by a solvothermal method using anhydrous citric acid and 2,3-phenazinediamine as the starting materials. The Y-CDs display a 24% fluorescence quantum yield, a 188-nm Stokes' shift and excellent stability. They are shown here to be excellent fluorescent probes for the determination of Ag(I) ion and glutathione (GSH). If exposed to Ag(I) ions, they are bound by the carboxy groups of the Y-CDs, and this causes quenching of fluorescence (with excitation/emission maxima at 380/568 nm) via a static quenching mechanism. This effect was used to design a fluorometric assay for Ag(I). The quenched fluorescence of the Y-CDs can be restored by adding GSH due to the high affinity of GSH for Ag(I). The calibration plot for Ag(I) is linear in the 1-4 μM Ag(I) concentration range, and the limit of detection is 31 nM. The respective values for GSH are 5-32 μM, and 76 nM, respectively. The method was applied to the detection of Ag(I) in spiked environmental water samples and gave recoveries ranging from 93 to 107%. It was also applied to the determination of GSH in tomatoes and purple grapes and gave satisfactory recoveries. The Y-CDs display low cytotoxicity and were successfully used to image Ag(I) and GSH in H1299 cells. Graphical abstract Schematic presentation of the mechanism of yellow fluorescent CDs for the detection of Ag
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