Abstract
Voltage enrichment-assisted surface-enhanced resonance Raman scattering (SERRS) was employed for monitoring mercury(II) ions based on a nanoporous gold (NPG)/aptamer hybrid sensor. The hybrid sensor based on the coordination chemistry of thymine-Hg 2+ -thymine interaction and an applied voltage that pushed mercury ions toward the NPG film improved both the speed and sensitivity of Hg 2+ ion detection. The detection limit can reach 0.1 pM, even in the aqueous solution containing 13 metal ions, and the sensor also possesses a fine reproducibility and stability, promising great potential in real-time sensing applications.
| Original language | English |
|---|---|
| Pages (from-to) | 6175-6179 |
| Number of pages | 5 |
| Journal | ACS Omega |
| Volume | 4 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2 Apr 2019 |
| Externally published | Yes |