Figure 2.

Atomic force microscopic (AFM) image of chitosan (a,a*) 2-D and 3-D image of adhesion and (b,b*) 2-D and 3-D image of height; and patch-5 (c,c*) 2-D and 3-D image of adhesion and (d,d*) 2-D and 3-D image of height.