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Mesenchymal stem cells (MSCs) on polyacrylamide hydrogels of different stiffnesses and ligand compositions. (A) Phalloidin (green) and 4′,6-diamidino-2-phenylindole (DAPI; blue) staining of MSCs on different combinations of stiffness and protein. (B) Cell numbers across the different conditions. (C) Average cell area across the different conditions. Color images available online at www.liebertpub.com/tea
