Figure 5

The distribution of EK forces applied on the 510 nm COOH-PS beads in 10 mM KCl with different pore diameters under positve 10 V/cm bias at the base. (a) DEP, (b) EP, (c) EOF and (d) the net EK forces along the length of the pipette. The zoom in inserted figures show the distribution of forces in fornt of the pipette’s tip at the trapping zone where the forces are balanced.