Translational diffusion has the effect of mixing the enantiomers, opposing the shear-driven separation. With Eq. ( ) and with initial concentrations for the enantiomer R and S, we can estimate the feasibility of the separation through the following variables: molecular pitch (P), a property of the enantiomer itself; vorticity (ω), an experimental condition; density (ρ o ), a solution property; and the translational diffusion coefficient (D tt ), a molecular property that varies with temperature and solution viscosity.