Figure 4From: FEM-based oxygen consumption and cell viability models for avascular pancreatic isletsCalculated oxygen concentrations (bottom) in a three-dimensional islet culture model (top) with differently sized islets ( ɸ = 100, 150, and 200 μ m) randomly distributed at a density of approximately 600 IEQ/cm2. A corresponding time-dependent animation is shown in additional file 4.Back to article page