Table 1 Comparison of analytical performances of H2O2 biosensors using different substrate materials for enzyme immobilization
From: Tin Oxide Nanorod Array-Based Electrochemical Hydrogen Peroxide Biosensor
Substrate materials | Immobilized enzyme | Sensitivity (μA mM−1 cm−2) | Detection limit (μM) | Reference |
|---|---|---|---|---|
C- TiO2 nanotube | Hemoglobin (Hb) | 8.57 | 0.92 | 19 |
Au-TiO2 nanotube | HRP | Not available | 2 | 18 |
ZnO-C nanowire array | HRP | 237.8 | 0.2 | 9 |
Au | HRP | 271 | 1.2 | 24 |
Nanosized ZnO | HRP | 255 | 4.0 | 24 |
Nanosized Au-ZnO | HRP | 369 | 0.7 | 24 |
SnO2 nanorod array | HRP | 379 | 0.2 | This work |