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Summary of microneedle dimensions and mechanical properties.
| Designation | Base Diameter (μm) | Length (μm) | Aspect Ratio | Radius of Curvature (μm) | Stiffness (N/m) | Displacement at 0.1 N (mm) | Displacement at 0.2 N (mm) |
|---|---|---|---|---|---|---|---|
| A | 250 | 750 | 3:1 | 10 | 1620 ± 1366 | 0.127 ± 0.117 | 0.182 ± 0.130 |
| B | 300 | 750 | 2.5:1 | 14.5 | 2222 ± 529 | 0.114 ± 0.062 | 0.169 ± 0.079 |
| C | 250 | 500 | 2:1 | 16.5 | 7580 ± 720 | 0.0255 ± 0.008 | 0.042 ± 0.007 |
