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Dimension and roughness of grooves on silk film surfaces.
| Samples | Depth (nm±SD) | Width (nm±SD) | Roughness (nm±SD) |
|---|---|---|---|
| Flat | – | – | 3.2±0.5 |
| A | 39±5.3 | 445±33 | 11.6±1.6 |
| B | 37±3.5 | 865±27 | 13.0±0.3 |
| C | 65±4.1 | 866±26 | 23.3±0.2 |
| D | 64±6.1 | 1796±173 | 19.5±1.3 |
| E | 86±5.9 | 1792±103 | 30.2±1.6 |
| F | 187±9.1 | 1832±68 | 64.3±1.1 |
| G | 85±8.3 | 3499±117 | 25.0±2.6 |
| H | 342±18.0 | 3584±108 | 120.5±1.1 |
