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The effect of changed concentration of PVA solution used as a blocking agent on the performance of the biosensor
| PVA [%] | Sensitivity [Ω decade-1] | Linear range [orders of magnitude] | FET/ASF signal ratio a |
|---|---|---|---|
| 0.5 | 680 ± 50 | 3 | 1.8 |
| 2.5 | 810 ± 40 | 4 | 1.6 |
| 5.0 | 550 ± 20 | 7 | 3.5 |
| 7.5 | 280 ± 30 | 4 | 1.4 |
– calculated by dividing the sensitivity of the device for FET to the sensitivity of the biosensor for ASF
All measurements were performed with three independent biosensor devices
