Morphology (×200) of rat bone marrow stromal cells on crosslinked PCLF and PCLF/HA nanocomposite (A: PCLF530, B: PCLF2000) disks 1, 4, and 7 days post-seeding. The scale bar of 200 μm in (a) is applicable to all. C: MTS absorption of bone marrow stromal cells on the disks of crosslinked PCLFs and PCLF/HA nanocomposites compared to cell-seeded tissue culture polystyrene (TCPS) as positive control. + p<0.05 between crosslinked PCLF530/HA 20% and 0% at day 7. * p<0.05 between crosslinked PCLF530/HA 30% and 0%, 10% at day 7. ++ p<0.05 between crosslinked PCLF2000 and PCLF530 at days 1 and 7. ** p<0.05 between TCPS and crosslinked PCLF2000, PCLF530 at days 1 and 7.