thicknesses of these monolayers, 2.2 nm, 2.4 nm, and 1.9 nm, respectively,

Plots of yix cos 6 versus F a extrapolated to zero adhesion force yield ysv (assuming ysT ~ 0 for the same groups). This approach for non-polar SAMs in methanolwater mixtures (Fig. 11) yielded a value of y Sv = 18.5 mJ/m 2 for CH3-terminated S A M and 10.8 mJ/m2 for CF3-terminated S A M [29].