A. Comparison of the size distributions of TiO2nanoparticles in extracellular media. B. Comparison of the average diameter of TiO2nanoparticles aggregates in extracellular media, complete media and media without serum.

Figure 1: Titanium dioxide nanoparticle size distributions based on DLS. This figure shows that the average size distribution of agglomerated TiO2 nanoparticles increases in a concentration dependent manner. Data represent the mean of 3 independent experiments +/- standard error of the mean.