Research Article
Design of Amperometric Biosensors for the Detection of Glucose Prepared by Immobilization of Glucose Oxidase on Conducting (Poly)Thiophene Films
Table 1
Selected validation data for the determination of glucose with (a) poly(2,2′-BT)/GOx and (b) poly(4,4′-bBT)/GOx-based biosensors.
| | Biosensor | LoD (μM) | LoQ (μM) | Linearity range (mM), Y = aX + b; R2 | Response time (s; C glucose, mM) | Intermediate precision (CV; C glucose, mM) | Stability (days) | Trueness, recovery (% ± SD) |
| | Poly(2,2′-BT)/GOx | 30 | 90 | 0.09–5.20
a = 1.5 × 10−3 ± 0.2 × 10−3
b = 5 × 10−7 ± 6 × 10−7
R2 = 0.999 | 180; 0.2
120; 1 | 7.0; 1 | >15 | 93 ± 6 |
| | Poly(4,4′-bBT)/GOx | 50 | 150 | 0.15–5.20
a = 3.4 × 10−4 ± 0.1 × 10−4
b = 4 × 10−8 ± 7 × 10−8
R2 = 0.997 | 50; 0.2
20; 1 | 2.8; 1 | >30 | 101 ± 4 |
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