Figure 5From: The effect of nanoparticle size on the probability to cross the blood-brain barrier: an in-vitro endothelial cell model Quantitative measurements using FAAS of Au per cell, for different sizes of GNPs. Each cell sample contained 1.3×106 cells. Results clearly demonstrate that 70 nm GNPs produce the largest amounts of gold uptake per cell. Results are presented as the total amount of gold (ng) per cell, mean ± S.D of three samples. *P < 0.05, Student’s t-test.Back to article page