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Elemental composition results by XPS.
| Survey | % | % |
|---|---|---|
| C1s | N1s | |
| Control | 57.74 (±17.8) | 1.81 (±0.51) |
| A50 | 69.56 (±2.61) | 16.5 (±1.13) |
| A75 | 72.83 (±1.09) | 17.2 (±0.4) |
| A85 | 78.4 (±5.71) | 18.39 (±1.68) |
| A50F5 | 65.20 (±1.84) | 12.53 (±0.80) |
| A75F5 | 66.93 (±6.87) | 12.58 (±3.8) |
| A85F5 | 68.47 (±3.85) | 12.6 (±0.72) |
| A50F10 | 64.39 (±0.13) | 13.69 (±0.53) |
| A75F10 | 66.11 (±0.34) | 13.98 (±0.25) |
| A85F10 | 67.27 (±1.84) | 14.33 (±1.06) |
