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Characterization of XPS spectra of C 1s and O 1s on the different surfaces.
| Binding | Proposed | |||
|---|---|---|---|---|
| Valence state | Substrate | energy (eV) | components | % |
| C 1s | V. natriegens | 284.6 | C-C | 74.79 |
| 285.4 | C-O-C | 14.91 | ||
| 288.4 | CO32- | 10.29 | ||
| B. subtilis and V. natriegens | 284.6 | C-C | 22.92 | |
| 285.4 | C-O-C | 35.00 | ||
| 288.4 | CO32- | 41.08 | ||
| O 1s | V. natriegens | 529.8 | Metal oxides | 52.48 |
| 531.6 | C-O | 37.64 | ||
| 533.6 | C=O | 09.86 | ||
| B. subtilis and V. natriegens | 529.8 | Metal oxides | 15.89 | |
| 531.6 | C-O | 62.66 | ||
| 533.6 | C=O | 21.45 |
