Research Article
Mulberry Juice-Derived Carbon Quantum Dots as a Cu2+ Ion Sensor: Investigating the Influence of Fruit Ripeness on the Optical Properties
Table 1
A summary of Cu2+ sensors based on CQDs.
| CQDs sensors | Detection limits | Ranges | Reference |
| Ionic liquid-derived CQDs | 0.18 µM | 0.5–5 µM and 10–90 µM | [47] | CQDs from sago waste | 7.78 µM | 0–47 µM | [48] | CdSe/ZnS@CQDs | 1 µM | 1–100 µM | [49] | CQDs from citric acid | 0.63 µM | 0.37–2.5 µM | [50] | Silica‐coated CQDs | 0.3 µM | 0.833–833 µM | [51] | Agarose/CQDs | 0.5 µM | — | [52] | N‐CQDs | 0.09 µM/0.12 µM | 0.3–1.6 µM | [53] |
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