Figure 2: Overview of factory for fabricating rolled cell sheets (A): Fabrication unit consists of a polyacrylate container with temperature-control unit to maintain a temperature of 37°C, and a cold-water infusion pump enabling regionally specific reduction of the temperature of the moving tray. A linear motor with control unit enables the tray to be pushed at a constant speed. Serial photos depicting rolling of the cell sheet (B): A rod driven by a linear motor pushes the cell-sheet–bearing tray, which moves from the right to the left in the image shown.