Figure 2

(a) Number of zigzag segments on the surface of films from BSA + NaCl + AlCl3 solutions, (b) number of zigzag segments on the surface of films from BSA + NaCl + FeCl3 solutions, (c) specific length of zigzag segments on the surface of films from BSA + NaCl + AlCl3 solutions, (d) specific length of zigzag segments on the surface of films from BSA + NaCl + FeCl3 solutions. At the top of the plots, the Spearman's rank correlation coefficient (rs) and its statistical significance value (p) are provided.