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Surface element composition of the pristine SP substrate and modified SP-TAPI.
| Sample | Composition (at %) | Atom Ratio | ||||
|---|---|---|---|---|---|---|
| C | O | N | Si | O/C | N/C | |
| Pristine SP | 69.60 | 29.64 | / | / | 0.43 | / |
| SP-(TA-APTES) | 70.00 | 22.98 | 2.62 | 4.12 | 0.34 | 0.07 |
| SP-TAPI | 69.68 | 15.91 | 13.87 | 0.54 | 0.23 | 0.21 |
