Figure 2

Preparation of HMDs. (a) Representative macroscopic view of the microfluidic chip. (b) Representative macroscopic view of the HMD. The arrow indicates the human iPSC-derived 3D cardiac microtissues attached to the microfluidic chip. The dotted circle indicates the position of the push bar. Scale bar = 2 mm. (c) (d) Schematic of the structure and working machinery of the HMD. (c) Top view. (d) Side view.