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| fiber diameter (μm, mean ± SD) | ||
|---|---|---|
| multizone scaffold | aligned fibers (top zone) | 1.57 ± 0.50 |
| random fibers (middle zone) | 1.94 ± 0.51 | |
| electrospun control | aligned fibers (top zone) | 1.78 ± 0.38 |
| random fibers (middle zone) | 1.44 ± 0.36 | |
| pore size (μm, mean ± SD) | ||
|---|---|---|
| multizone scaffold | helix scaffold (bottom zone) | 3.62 ± 2.46 |
| phase-separated control | 4.06 ± 1.91 | |
