Table 4.
Main characteristics of representative EGFET-based glucose sensors.
Ref. | Electrode | Sensitivity | Range (mM) | Linearity (%) | Drift (mV/h) | Hysteresis (mV) | Reference Electrode | Sensitive Area (μm2) | FET Device | Type |
---|---|---|---|---|---|---|---|---|---|---|
[101] | AZO | 60.5 μA·mM−1·cm−2 | 0–13.9 | 99.96 | 1.27 | 4.83 | Ag/AgCl | 2 × 2·106 | CD4007UB | A |
[135] | Au | −61.6 mV/decade | 0.125–1 | 99.60 | nr | nr | Ag/AgCl | 10 × 10 | 0.6 μm CMOS | P |
[136] | PPI/NiTsPc | nr | 0.05–1 | nr | nr | nr | Ag/AgCl | nr | AD620 I.A. | P |
[137] | Au | −58 mV/decade | 0.1–2 | 99.97 | 0.50 | nr | Ag/AgCl | 20 × 56 | 32 × 32 array 1.2 μm CMOS | P |
[138] | Ru-doped TiO2 | 320 μV/(mg/dL) | 5.55–27.55 | 99.50 | nr | nr | Ag/AgCl | 2 × 2·106 | LT1167 I.A. | P |
[139] | ZnO | 20.33 μA·mM−1·cm−2 | 0.5–10 | nr | nr | nr | Ag/AgCl | nr | CD4007UB | P |
[140] | ZnO nanorods | nr | 0.01–5 | nr | nr | nr | Ag/AgCl | nr | Glass FET | P |
P, potentiometric; A, amperometric; I.A., instrumentation amplifier; nr, not reported; PPI/NiTsPc, poly(propylene imine) dendrimer/nickel tetrasulphonated phthalocyanine.