Materials Genome Institute and Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China.
Molecules. 2023 Feb 2;28(3):1459. doi: 10.3390/molecules28031459.
Porphyrin (TMPyP) functionalized carbon quantum dots (CQDs-TMPyP), a novel and efficient carbon nanocomposite material, were developed as a novel luminescent material, which could be very useful for the sensitive detection of copper ions in the Cu quenching luminescence of functionalized carbon quantum dots. Therefore, we constructed a sensitive "signal off" ECL biosensor for the detection of Cu. This sensor can sensitively respond to copper ions in the range of 10 nM to 10 μM, and the detection limit is 2.78 nM. At the same time, it has good selectivity and stability and a benign response in complex systems. With excellent properties, this proposed ECL biosensor provides an efficient and ultrasensitive method for Cu detection.
卟啉（TMPyP）功能化碳量子点（CQDs-TMPyP）是一种新型高效的碳纳米复合材料，被开发为一种新型发光材料，可用于功能化碳量子点的 Cu 猝灭发光中铜离子的灵敏检测。因此，我们构建了一种灵敏的“信号关闭”电化学发光（ECL）生物传感器用于检测 Cu。该传感器可以在 10 nM 至 10 μM 的范围内对铜离子进行灵敏响应，检测限为 2.78 nM。同时，它在复杂体系中具有良好的选择性和稳定性以及良性响应。具有优异性能的这种 ECL 生物传感器为 Cu 检测提供了一种高效、灵敏的方法。
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