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Average water contact angles for bare and adhesive hydrogel-coated micropillars with differen aspect ratios (n = 3).
| Aspect ratio (AR) | Contact angle in degree (°) | |
|---|---|---|
| Bare micropillars (Bare-ARx) | Adhesive hydrogel-coated micropillars (AD-ARx) | |
| 0.4 | 135.6 ± 0.80 | 113.3 ± 6.1 |
| 1 | 146.9 ± 1.7 | 115.3 ± 1.9 |
| 2 | 149.4 ± 0.60 | 129.2 ± 1.5 |
