(in real units of mN m -1 ) as a function of A s,α to third-order polynomials, γ s,dod = -76.9 + 14. The coefficient of determination was R 2 = 0.9999 in both cases, since the dependence is rather smooth and these fits are quite accurate as shown in Fig. . The coefficients in these expressions differ because dodecane in our DPD model is a molecular fluid at a different density, and with different bead interactions, than the DPD water model.