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The shift of resonance angle for different concentrations of DENV E-proteins in contact with Au/IgM and Au/DSU/NH2rGO-PAMAM/IgM sensor film.
| Sensor film | Sample (pM) | Shift of resonance angle, Δθ (°) | Sensitivity (°/pM) | Average standard deviation (±) | ||
|---|---|---|---|---|---|---|
| Δθ1 | Δθ2 | Δθ3 | ||||
| Au/IgM | 0.08 | 0 | 0 | 0 | 0 | 0.0004 |
| 0.1 | 0 | 0 | 0 | |||
| 0.3 | 0 | 0.0001 | 0.0020 | |||
| 0.5 | 0.0020 | 0.0015 | 0.0009 | |||
| Au/DSU/NH2rGO-PAMAM/IgM | 0.08 | 0.0834 | 0.0914 | 0.0931 | 0.2576 | 0.0044 |
| 0.1 | 0.0903 | 0.0999 | 0.1039 | |||
| 0.3 | 0.1668 | 0.1708 | 0.1738 | |||
| 0.5 | 0.1899 | 0.1866 | 0.1904 | |||
