Optimal Pore Size of Honeycomb Polylactic Acid Films for In Vitro Cartilage Formation by Synovial Mesenchymal Stem Cells

Figure 2

SEM images and surface markers of synovial MSCs plated onto honeycomb films. (a) SEM images of honeycomb PLA films after plating synovial MSCs. Synovial MSCs ( in 500 μL medium) were plated on PLA films without pores (0 μm) or with 5 μm and 20 μm pores and observed from above after 2 h. Representative pseudopodia are indicated with yellow arrows. (b) Surface markers of synovial MSCs one day after seeding onto the film. Means and standard deviations are shown (). (c) Surface markers of synovial MSCs before and one day after seeding onto 0 μm film. . values were determined by paired Student’s test.

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