Figure 4From: Dynamics of different-sized solid-state nanocrystals as tracers for a drug-delivery system in the interstitium of a human tumor xenograftTrajectories of nanoparticles in the interstitial region. (a) Trajectories of the Quantum dot in the interstitial region. The trajectories are encoded on the time axis from blue to red to yellow. (b) Trajectories of three different-sized particles in the interstitial region.Back to article page