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Regulating hMSC adhesion to patterned RGD-presenting SAMs. (A) Calcein AM staining and (B) focal adhesion (FA) staining of hMSCs attached to patterned features containing decreasing amounts of the cell adhesion peptide RGDSP (FA stain: FITC-anti-vinculin, TRITC-phalloidin, DAPI). Higher magnification images of individual hMSCs (C) actin staining, (D) vinculin staining and (E) overlay including DAPI
