Figure 2
From: Cellular uptake of magnetic nanoparticles imaged and quantified by magnetic particle imaging

Reconstructed MPI images of the MNP distribution as a function of time of free (a) and cell-bound (b) MNPs in contact with THP-1 cells. Displayed are summed up intensities along the z-axis to visualize the 3D datasets. The same scaling was used for all images. The first column displays the reconstruction before injection of the cells (number of cells displayed on the left), in which only MNPs diluted in PBS were located in the FOV. The following columns show representative time frames after the injection with an increasing intensity of cell-bound MNPs at the same location compared to free MNPs.