Figure 4.

Asymmetric, frequency dependent real part of the CM factor assuming DNA as an ellipsoidal particle. The inset shows the negative values of the CM factor at f > f_co, which lead to negative DEP. In calculating this plot, the following parameters were used: a = b = 2 nm, c = 22 μm, ε_p = 8ε_o, ε_m = 78ε_o, σ_p = 1 S/m, σ_m = 5×10⁻⁴ S/m (see Supporting Information for details).