Movie S1.

Live-cell microscopy showing human macrophages phagocytosing pHrodo zymosan bioparticles. Human macrophages were incubated with pHrodo zymosan bioparticles (red) and were stained with lysotracker (green). Fluorescence and differential phase contrast images were collected every 15 seconds for 45 minutes using a 60× objective. Bar is 20 μm.