TABLE 2.
Comparison between predicted resistance of the medium R medium and R medium as extracted from fits to experimental data (more details in Section 3.2.2). The values are reported in Ω. The fitted and measured impedance deviated on the order of the accuracy of the potentiostat (1%) indicating the high quality of the fit. We did not investigate the experimental error in greater detail and thus estimate it to be 1% for all reported values. The predicted values (between the 5th and 95th percentile) are entirely based on the UQ analysis. The uncertainty of the conductivity σ was assumed to be ±2% of the expected value (1.288 S m−1 for KCl at 25°C, 1.38 S m−1 for cell culture medium at 37°C). The values for parallel and series connections were estimated using Eqs 5, 6.
| Electrolytic solution | Volume | Experimental | Predicted | Predicted with uncertainty of σ |
|---|---|---|---|---|
| KCl | 3.5 ml | 183.84 | [177.97, 197.18] | [174.48, 201.21] |
| KCl | 4.0 ml | 167.26 | [157.42, 173.39] | [154.34, 176.93] |
| KCl | 5.0 ml | 138.40 | [129.58, 141.96] | [127.04, 144.85] |
| Medium (1-well) | 3.5 ml | 166.56 | [166.11, 184.04] | [162.85, 187.79] |
| Medium (6-well) | 3.5 ml, ∥ | 29.02 | [27.69, 30.67] | [27.14, 31.29] |
| Medium (6-well) | 3.5 ml, series | 1075.25 | [996.66, 1104.24] | [977.10, 1126.74] |