FIG. 3.

Hydrophilic property of coaxial electrospun scaffolds. (A) Water droplet profiles and the graph of the contact angles of 1 μL drops of water on PLA, crosslinked (XL) collagen, noncrosslinked (non-XL) coaxial, and crosslinked (XL) coaxial scaffold with insets of SEM image of each scaffold (PLA: 2500 × , scale bar: 10 μm; others: 10,000 × , scale bar: 2 μm) of scaffolds. (B) Percentage of water uptake by PLA, collagen, and coaxial scaffolds. (p = 0.0019 among experimental groups, Kruskal–Wallis test; **p < 0.01 and ****p < 0.0001 between groups, Mann–Whitney test).