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XPS Analysis on Modified Surfaces
| Modification | O (%) | Si (%) | C (%) | N (%) | Mn (%) |
|---|---|---|---|---|---|
| Plasma treated SiO2 | 68.8 | 27.3 | 3.8 | <0.1 | <0.1 |
| Amine functionalized | 39.0 | 16.9 | 38.1 | 6.0 | <0.1 |
| MnTBAP SOD mimetic composites | 36.3 | 13.1 | 47.1 | 3.1 | 0.5 |
| MnTBAP SOD mimetic covelent immobilized only | 34.2 | 13.2 | 47.9 | 4.2 | 0.5 |
