Figure 2. Images of cells functionalized with magnetic beads before (left, original chamber) and after (right, collection chamber) sorting.

Beads appear in white (transmission image), and plasma membranes, tagged with WGA-Alexa555, in red (fluorescence image). Experiments were performed by tagging and sorting one cell (A) or five cells (B). In each case, it is apparent that all selected cells (left) are efficiently extracted (right) without contamination as the number of cells on the images on the right corresponds to the number of cells tagged. Tagged cells are easily recognized as they are covered with beads in both images. Scale bars: 50 µm.