An Electrochemical Aptasensor for Pb2+ Detection Based on Metal–Organic-Framework-Derived Hybrid Carbon
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials and Apparatus
2.2. The synthesis of CZIFs Particles
2.3. Preparation of Probe
2.4. Application in aqueous samples
3. Results and Discussion
3.1. Characterization of Porous Carbon Materials
3.2. Electrochemical Characterization of the Aptasensor
3.3. Optimization of Experimental Conditions
3.4. Performance of the Aptasensor
3.5. Selectivity and Reproducibility of the Aptasensor
3.6. Assay of Pb2+ in River Water and Soil Sample
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Method | Linear Range (μg L−1) | Detection Limit (μg L−1) | Reference |
---|---|---|---|
Probe Fe3O4@Au-ssDNA&Ru-NH2 | 20.7–20,700 | 20.7 | [52] |
The screen-printed electrode (SPE) was immobilized by unique consecutive adenines (polyA) linker and aptamer | 0.1–1000 | 0.03 | [53] |
Electrochemical aptasensor based on Au@ppy and aptamer | 0.1–2.0 | 0.072 | [40] |
PDMS-PA-DB18C6 electrodes were evaluated for anodic stripping voltammetric | 20–700 | 3.5 | [54] |
Electrochemical aptasensor based on Metal–Organic-Framework-Derived Hybrid Carbon and aptamer | 0.1–10 | 0.096 | This work |
Samples (μg L−1) | Mean Found (μg L−1) | Mean Recovery (%) | RSD (%) |
---|---|---|---|
Pb2+ (0.5), Hg2+ (2), K+ (3.28), Zn2+ (15.6), Cu2+ (24) | 0.48 | 96.2 | 4.26 |
Pb2+ (8.0), K+ (25.6), Ca2+ (50), Mn2+ (72.7), Cd2+ (17.8) | 8.15 | 101.5 | 3.95 |
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Ding, J.; Zhang, D.; Liu, Y.; Zhan, X.; Lu, Y.; Zhou, P.; Zhang, D. An Electrochemical Aptasensor for Pb2+ Detection Based on Metal–Organic-Framework-Derived Hybrid Carbon. Biosensors 2021, 11, 1. https://doi.org/10.3390/bios11010001
Ding J, Zhang D, Liu Y, Zhan X, Lu Y, Zhou P, Zhang D. An Electrochemical Aptasensor for Pb2+ Detection Based on Metal–Organic-Framework-Derived Hybrid Carbon. Biosensors. 2021; 11(1):1. https://doi.org/10.3390/bios11010001
Chicago/Turabian StyleDing, Jina, Dongwei Zhang, Yang Liu, Xuejia Zhan, Yitong Lu, Pei Zhou, and Dan Zhang. 2021. "An Electrochemical Aptasensor for Pb2+ Detection Based on Metal–Organic-Framework-Derived Hybrid Carbon" Biosensors 11, no. 1: 1. https://doi.org/10.3390/bios11010001