Figure 2.
T cell motion. (A) Mean displacement plots for different update times of the target direction Δt (black line, Δt = 5 s, M ≈ 3 μm2 min−1; red line, Δt = 10 s, M ≈ 4 μm2 min−1; green line, Δt = 15 s, M ≈ 55 μm2 min−1; blue line, Δt = 20 s, M ≈ 102 μm2 min−1). (B) Sequence of compressions along the z direction (top-view) showing T cell movement over a period of several minutes (time shown in min:s). Tracks of 7 T cells (encircled) are shown at 10-s intervals (DCs green, T cells red). Bar, 10 μm. (C) Overlay of individual T cell tracks from a 10-min period in xy and xz coordinates after aligning their starting positions.
