Porphyrin Functionalized Carbon Quantum Dots for Enhanced Electrochemiluminescence and Sensitive Detection of Cu2

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 Cu2+ quenching luminescence of functionalized carbon qu...

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Published inMolecules (Basel, Switzerland) Vol. 28; no. 3; p. 1459
Main Authors Zhang, Xinying, Hou, Xialing, Lu, Decheng, Chen, Yingying, Feng, Lingyan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 02.02.2023
MDPI
Subjects
Alzheimer's disease
Biosensors
Carbon
carbon quantum dots
Complex systems
Composite materials
Copper
Cu2+ detection
Electrochemiluminescence
Graphene
Ions
Nanocomposites
Nanomaterials
porphyrin
Porphyrins
Quantum dots
Selectivity
Vibration
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Summary: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 Cu2+ quenching luminescence of functionalized carbon quantum dots. Therefore, we constructed a sensitive “signal off” ECL biosensor for the detection of Cu2+. 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 Cu2+ detection.
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ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28031459