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Fibroblastic differentiation of hASCs on nanofiber meshes. (a) Gene expression for vimentin (day 1) and alpha-actin-2 (ACTA-2) (day 3). (b) Immunofluorescent images for vimentin (day 1) and alpha-smooth muscle actin (α-SMA) (day 3). Double-head arrow indicates the fiber orientation. Scale bar: 50 μm. Color images available online at www.liebertonline.com/tea
