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. 2018 Mar 26;11(4):490. doi: 10.3390/ma11040490

Figure 5.

Figure 5

Viability and proliferation assay showing the number of the MC3T3-E1 pre-osteoblastic cells cultured on the CS-g-PCL surface and on tissue culture treated polystyrene (TCPS) after 1, 3, 7 days in culture. Optical density values of viability are normalized to the cell number using a calibration curve. The number of cells cultured on the CS-g-PCL surfaces was similar to those on TCPS 1 day after seeding but after 3 and 7 days it was significantly higher for the cells cultured on the CS-g-PCL copolymer surface.