Fig. 3From: Regeneration of TiO2 Nanotube Arrays after Long-Term Cell and Tissue Culture for Multiple Use – an Environmental Scanning Electron Microscopy (ESEM) Survey of Adult Pig Retina and beyondESEM images of PFA/GA-fixed retinal tissue residues on top of nanotube arrays after 14 days in culture: (a) overall view for retinal residues (b) microvilli from the RPE and (c) out-migrating cells which collect at the edges of the scaffoldBack to article page