371430.fig.003a
(a)
371430.fig.003b
(b)
371430.fig.003c
(c)
371430.fig.003d
(d)
371430.fig.003e
(e)
371430.fig.003f
(f)
371430.fig.003g
(g)
Figure 3: AFM scans of pristine LDPE (a), plasma-treated LDPE (b), LDPE treated with plasma and grafted with glycine (c), PEG (d), BSA (e), C (f), or BSA+C (g). is the surface roughness in nm.