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Confocal images of A549 cells on MDC hydrogel. (a–c) Stress fiber arrangement and nucleus size on microtumor, (a) Z-stacking and 3D reconstructed image of microtumor formation in scaffolds having cells cytoskeleton arrangement in microtumors. Scale bar: 100 µm. (b) 40×, (c) 100×. Scale bar: 20 µm.
