Figure 5. Cell movement on BSA-coated plasma oxidized PDMS substrate, 12 hours after cell seeding.

Arrows indicate three individual cells that migrate and change shapes between round and elongated morphology. Cells extended and retracted frequently seeking for a favorable site to spread. For example, arrow 3 indicates a cell that frequently extended its pseudopodia for movement across the substrate. The formation and activity of pseudopodia are characteristics of mesenchymal-like cancer cell. Scale bar: 20 μm.