Fig. 2
From: Spontaneous penetration of gold nanoparticles through the blood brain barrier (BBB)
Change in gold concentrations in different brain regions due to exposure to ion channel blockers. Sum of gold concentrations measured in different brain regions as observed in the experiments with and without injection of the ion channel blockers (verapamil, dofetilide and phenytoin). Note that the concentration of the gold was normalized to the amount of gold nanoparticles in the solution that was injected in the different experiments