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. 2020 Jun 29;6(6):e04329. doi: 10.1016/j.heliyon.2020.e04329

Figure 2.

Figure 2

Micrographs of ECs on gradients with 1 μg per ml gelatin coatings. a. Micrographs correspond to images of the gradient with 1 μg per ml of gelatin coating after four days of culture. The triangle depicts wrinkle size development going from nanosized to microsized feautures. The top image corresponds to GFP image and bottom to bright field. b. PDMS flat control with 1 μg per ml of gelatin coating. c. TCP control with 1 μg per ml of gelatin coating. d. Schematic representation of the ECs' behavior on the directional topography gradient in the nanosized part and the middle of the gradient with micron-sized topography. Scale bars are 400 μm.