Effects of varying polyamino acid enantiomer type. (a) percent LIVE® stained area of MC3T3-E1s cultured on AntiA-bCaP-PEM30-D-FGF2 (orange) as compared to cells cultured on AntiA-bCaP-PEM30-L-FGF2 (Green) (** p = 0.003, *** p <0.0004); (b) fluorescent LIVE® stained images at 4 h, and one, three, and five days of culture on AntiA bCaP-PEM30-L-FGF2 as compared to cells on AntiA-bCaP-PEM30-D-FGF2; (c) percent LIVE® stained area of MC3T3-E1s cultured on bCaP-PEM30-D-FGF2 (red) as compared to cells cultured on bCaP-PEM30-L-FGF2 (blue), (** p = 0.003, *** p < 0.0004); and (d) fluorescent LIVE® stained images at 4 h, 1 and one, three, and five days of culture on bCaP-PEM30-D-FGF2 as compared to cells cultured on bCaP-PEM30-L-FGF2. Scale bar = 100 μm.