Figure 1. Flow cytometry analysis of cellular uptake.
(A) The sample stream containing the cells are injected into a flowing stream of sheath fluid, which focuses the sample stream to roughly one cell in diameter. The luminescence and light scatter are recorded for each cell as it passes through the laser beam. (B) Histograms are shown representing cells treated with different metal complexes. Untreated cells display some background luminescence. Complexes with greater uptake exhibit increased luminescence intensity.