Abstract
A highly sensitive method for the detection of a breast cancer-associated BRCA-1 gene is reported. The detection is based on a classical sandwich-type assay using horseradish peroxidase (HRP) as a catalytic label and electrodeposited Os2+/3+ conducting polymer (PAA-PVI-Os) as a redox mediator. Target DNA could be detected by the HRP-catalyzed reduction of H 2O2, leading to a limit of detection as low as 10 fM.
| Original language | English |
|---|---|
| Pages (from-to) | 746-750 |
| Number of pages | 5 |
| Journal | Science in China, Series B: Chemistry |
| Volume | 52 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2009 |
| Externally published | Yes |
Keywords
- Conducting polymer
- DNA detection
- Electrochemistry
- HRP