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Characteristics of dense- and nanofibrous-surfaced 3D scaffolds: (a) SEM images showing the morphology of dense- and nanofibrous-surfaced porous scaffolds; (b) macro-porosity and pore size distribution, measured by a mercury intrusion porosimeter; (c) specific surface area, measured by a BET method; and (d) hydrophilicity, examined by a time-dependent change in water contact angle.
Statistically significant difference indicated (**p < 0.01).
