Figure 2.

The effects of flow velocity on DEP capture at 10 kHz and 10 V 9 pp with 5×10 pfu·ml⁻¹ Bacteriophage T4r. (a) The kinetic curves of the integrated fluorescence intensity over the 200 μm × 200 μm NEA area as the AC voltage is turned on (at ~10 sec) and off (at ~ 80 sec). (b) The quantity of DEP capture, represented by the maximum increase of the integrated fluorescence intensity (ΔF max), versus the flow velocity, which is peaked at 0.73 mm·sec⁻¹. (c)-(e) are the representative snapshots from the videos just before the AC voltage was turned off at flow velocity of 0.33, 0.73 and 2.72 mm·sec⁻¹, respectively.