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(a) Fluorescence image of the surface of a single cell treated with FND-HPG-Amp particles. Bright red spots indicate the fluorescence from FNDs; (b) Molecule trajectories of two FND-labeled IL-18Rα recorded for ca. 8 s. The color code of the trajectory shows the time course, as indicated on the right side. Scale bar shows 10 μm. Movies are provided in supplementary material.
