Figure 5.

(A) Regional enrichment study of parasites from time t = 0 to t = 50 s for four predefined regions of interest shown in Figure 1H. All enrichment experiments were performed at a frequency of 750 kHz, as such frequency yields the strongest positive DEP response of T. brucei under the conditions studied in this work. (B) Single electrode at t = 0 illustrating low attachment of parasites to electrode edges. (C) Single electrode at t = 50 illustrating high attachment of parasites to electrode edges, particularly in regions 3 and 4 (dashed rectangles).