Accumulation of glucose-coated gold nanoparticles in human primary astrocytes in co-cultures.

a<p>Time after application of nanoparticles to the apical surface of the brain endothelium (hCMEC/D3).</p>b<p>Total number of astrocytes observed.</p>c<p>Percentage of astrocytes with intracellular nanoparticles, mean ± SEM.</p>d<p>The distance of each astrocyte containing nanoparticles from the basal surface of the endothelium in µm, mean ±SEM. Figures in brackets indicate the maximum distance observed.</p>e<p>Number of nanoparticles observed in cells containing nanoparticles, mean ±SEM.</p>