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| Content Provider | Springer Nature Link |
|---|---|
| Author | Bai, Jing Sun, Chunhe Jiang, Xiue |
| Copyright Year | 2016 |
| Abstract | A novel enzyme-free hydrogen peroxide sensor composed of carbon dots (CDs) and multi-walled carbon nanotubes (MWCNTs) was prepared. It was found that the carbon dots-decorated multi-walled carbon nanotubes nanocomposites (CDs/MWCNTs) modified glassy carbon (GC) electrode (CDs/MWCNTs/GCE) exhibited a significant synergistic electrocatalytic activity towards hydrogen peroxide reduction as compared to carbon dots or multi-walled carbon nanotubes alone, and the CDs/MWCNTs/GCE has shown a low detection limit as well as excellent stability, selectivity, and reproducibility. These remarkable analytical advantages enable the practical application of CDs/MWCNTs/GCE for the real-time tracking of hydrogen peroxide (H2O2) released from human cervical cancer cells with satisfactory results. The enhanced electrochemical activity can be assigned to the edge plane-like defective sites and lattice oxygen in the CDs/MWCNTs nanocomposites due to the small amount of decoration of carbon dots on the multi-walled carbon nanotubes. Based on a facile preparation method and with good electrochemical properties, the CDs/MWCNTs nanocomposites represent a new class of carbon electrode for electrochemical sensor applications. Graphical Abstract CDs/MWCNTs exhibited good electrocatalytic activity and stability to H2O2 reduction and can be used for real-time detection of H2O2 released from living cells. |
| Starting Page | 4705 |
| Ending Page | 4714 |
| Page Count | 10 |
| File Format | |
| ISSN | 16182642 |
| Journal | Analytical and Bioanalytical Chemistry |
| Volume Number | 408 |
| Issue Number | 17 |
| e-ISSN | 16182650 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2016-04-23 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Carbon quantum dots Catalyst Extracellular H2O2 Electrocatalysis Nonenzymatic biosensor Analytical Chemistry Biochemistry Laboratory Medicine Characterization and Evaluation of Materials Food Science Environmental Monitoring/Analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Biochemistry |
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