article · Talanta Open
This review explores Carbon Quantum Dots from Natural Sources (NACQDs), a novel carbon-based material with properties such as luminescence, photostability, low toxicity, and cost-effectiveness. NACQDs can be synthesised from various natural sources, including fruits, vegetables, and waste materials, using diverse methods like hydrothermal carbonisation and microwave-assisted synthesis. Characterisation techniques, such as FTIR and TEM, help understand their physical and chemical attributes. The research highlights the significant potential of NACQDs for metal ion sensing applications. Further investigation is required to improve their reproducibility and precise control over their properties, positioning them as versatile nanomaterials for future use.
Understanding NACQDs is important because these sustainable, low-cost materials offer a new way to detect metal ions. Their unique properties could lead to more effective and environmentally friendly solutions for monitoring pollutants and diagnosing health conditions, impacting various aspects of daily life.
NACQDs hold potential for developing advanced sensors for metal ion detection, which could be used in environmental monitoring, biomedical diagnostics, and chemical analysis. While the abstract indicates a broad range of applications and the potential to revolutionise fields, it also highlights the need for further investigation into reproducibility and property control, suggesting this is early-stage research.
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Carbon Quantum Dots from Natural Sources (NACQDs) is a novel type of carbon-based material that have garnered significant attention due to their remarkable features, including luminescence, photostability, nanoscale size, water solubility, low toxicity, biocompatibility, and cost-effectiveness. The synthesis of NACQDs involves a diverse range of natural sources, such as fruits, foods, beverages, human and animal derivatives, vegetables, leaves, and waste materials. Various synthesis methods, including electrochemical approach, chemical oxidation, hydrothermal carbonization, ultrasonic techniques, microwave-assisted synthesis, solvothermal method, laser ablation technique, thermolysis, and atmospheric plasma-based synthesis, have been explored to tailor the size and properties of NACQDs. Characterization techniques like Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TЕM), ultraviolet absorption, fluorescence properties, and nuclear magnetic resonance (NMR) have provided invaluable insights into the physical and chemical characteristics of NACQDs. This review highlights the immense potential of NACQDs in metal ion sensing applications and underscores the need for further investigation to enhance their reproducibility and precise control over their properties. NACQDs hold great promise as versatile nanomaterials for metal ion sensing and are poised to revolutionize diverse fields, ranging from environmental monitoring to biomedical diagnostics and chemical analysis.
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DOI: 10.1016/j.talo.2024.100348
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