Table 1.
Showing the Michaelis-Menten KM constant and the maximum limiting current Imax for the three biosensors.
| Biosensor | Enzyme | Km | Imax |
|---|---|---|---|
| Theophylline biosensor | Xanthine oxidase (7 U/mg) | ||
| With epoxy PU membrane | 31 μM ± 1.22 | 0.52 μA ± 0.05 | |
| Without membrane | 13 μM ± 1.84 | 0.31 μA ± 0.008 | |
| Lactate biosensor | Lactate oxidase (41 U/mg) | ||
| With epoxy PU membrane | 3.03 mM ± 0.9 | 2.5 μA ± 0.2 | |
| Without membrane | 0.7 mM ± 0.08 | 0.95 μA ± 0.06 | |
| Glucose biosensor | Glucose oxidase (239 U/mg) | ||
| WE1 no membrane | 11.4 mM ± 2.74 | 20.3 μA ± 2.45 | |
| WE2 no membrane | 13.9 mM ± 5.9 | 23.6 μA ± 5.4 | |
| WE3 no membrane | 15.5 mM ± 9.6 | 25.5 μA ± 8.71 |