Research Article

Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy

Figure 1

Typical AFM height images of collagen fibrils assembled on mica surface at different concentrations of collagen: (a) 5, (b) 10, (c) 20, and (d) 50 μg/mL. Scale bar = 0.4 μm.