Table 1.
Basic characteristics of biosensor based on modified screen-printed electrode
| Characteristics | TEOS + DMDES | Selenium nanoparticle-mesoporous silica composite matrix and carbon paste electrode (Sarma et al. 2009) | Reduced graphene oxide covalently conjugated to magnetic nanoparticles (Fe3O4) (Tan et al. 2011) | Hybrid sol–gel film consisting of TEOS, bovine serum albumin (BSA) and chitosan (Arlyapov et al. 2017) |
|---|---|---|---|---|
| Reproducibility, % | 1.9 | 2.8 | 4 | – |
| Sensitivity coefficient, nA mM−1 | 1480 ± 30 | 3400 | 5900 | 1840 |
| Lower border of detection range, mM | 0.045 | 0.1 | 0.5 | 0.032 |
| Upper border of detection range, mM | 1.04 ± 0.04 | 0.02 | 1 | 0.1 |
| Duration of single measurement, min | 1–3 | – | 3 | 3 |