Using the synergism strategy of multi-redox-modified signaling probe, background suppression and large surface area electrode for highly sensitive and specific electrochemical sensing of specific DNA sequence

- This versatile sensing method was developed for the detection of a designated specific DNA sequence.
- This method focuses on the synergism strategy for improving the sensitivity of sensor greatly.
- The proposed sensor features a very low detection limit of ∼2 fM for the target DNA.