Figure 4

Movement of particles having similar electrophoretic mobilities and different sizes; diameters: 3.1 and 9.9 μm; electrophoretic mobilities: −6.70 × 10−4 and −6.18 × 10−4 cm2·V−1·s−1, respectively (snap shot; flow rate of Inlet 1: 1.0 μL/min; flow rate of Inlet 2: 50 nL/min; applied voltage: 60 V, membrane thickness: 1.3 μm).