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Electrospun 3D multi-scale fibrous scaffold for enhanced human dermal fibroblasts infiltration
Figure 2. Comparison between 3D multi-scale scaffold and 2D electrospun scaffold. (A) 3D multi-scale scaffold has folded into
cotton ball like shape. Scanning electron image on the right shows a mixture of (i) micro-fibers of 3.3 µm diameter and (ii) na-
no-fibers of 0.2 µm diameter. (B) Diameters of fibers in 3D multi-scale scaffold are mostly in the range of 0.2~0.4 µm, or 2~4 µm.
(C) 2D scaffold electrospun scaffold collected on aluminium foil wrapped on plate collector. Micro-fibers of 0.7 µm are densely
packed in traditional 2D scaffold.
86 International Journal of Bioprinting (2016)–Volume 2, Issue 1
