H&E staining of re-endothelialized liver scaffolds. After decellularization, scaffolds were covalently conjugated or not (control) with 10 lM of REDV-ELP. Matrices were re-endothelialized and perfused for 4 days. The left lateral lobe (1), caudate lobe (2), inferior right lateral lobe (3), superior right lateral lobe (4) and median lobe (5) were collected, fixed in 10% formalin, embedded in paraffin for tissue slicing and stained with hematoxylin and eosin. Scale bar = 100 lm. * shows endothelial cells partially detached form the vessel wall or vessel clogged by endothelial cells accumulation in lumen. shows vessel walls covered by a monolayer of well-spread endothelial cells.