Fig. (8) Scanning electron microscopy (SEM) of podocyte isolation procedure steps. A, B: Isolated glomerulus. Podocytes are marked by arrows B: Podocyte on a peripheral glomerular capillary. Note the  interdigitating foot processes of neighboured podocytes. C: Isolated glomerulus after coating with cationic  colloidal silica-coated ferromagnetic nanoparticles (NPs). D: Detail enlargement of C. E: Isolated podocyte with  NP’s on the cell surface (arrow). Note that some NPs will have detached from the cell surface during processing  of the sample for SEM. F: Detail enlargement of foot processes of isolated podocytes. Arrow marks NPs. Bars =  1 μm.