International audiencePresent approach well suited to predict both (i) fluid flow in the macroporosity of the scaffold stack, (ii) the oxygen state experienced by the cells within the scaffolds Next: Co-culture of human umbilical vein endothelial cells and human mesenchymal stem cells Optical coherence tomography (OCT) to get a better spatial resolution and capture the microporosity of the porous hydrogel scaffolds Context LBM scheme and boundary conditions Custom-made perfusion bioreactor Hydrodynamics and oxygen transport