Figure 5.

The maximal deformation of droplets incubated with pure surfactant and the derived interfacial tensions at the hexadecane–water interface: (a,b) surfactin, (c,d) 5-SCBS and (e,f) 8-SCBS. In each plot, three surfactant concentrations are tested, i.e. 0.1 mM (green circles), 0.25 mM (orange squares) and 0.5 mM (purple triangles). Global fits (dashed lines) are performed based on our model with the parameters listed in table 2.