Fig. 2.

Influence of liver hydration on ex vivo adhesion. (A and B) Adhesion energy as a function of liver water content for peeling of PEG ribbons (Q = 1, Δt = 5 min) on (A) the capsule and (B) the parenchyma of freshly dissected (diamonds) and drained (circles) livers. For the parenchyma, data on rehydrated samples are also represented (triangles). Full and open symbols correspond to adhesive and lubricated peeling, respectively. (C and D) Fluorescent micrographs of cross-sections of (C) a liver capsule and (D) a liver parenchyma after 20 min of immersion in physiological serum containing sodium fluorescein (0.1 g/L). Tissue surface is on top. Dashed lines are iso-intensity lines (50% maximum intensity) indicating penetration depth. (Scale bar: 300 µm.)