Figure 3From: In vitro and in vivo evaluation of a photosensitive polyimide thin-film microelectrode array suitable for epiretinal stimulationMorphology of the L929 cells growing directly on the microelectrode. (a and b) Cells were photographed with an inverted light microscope (× 200) or by scanning electron microscopy, respectively after 3 days in culture. (c and d) Control cultures under the same conditions.Back to article page