The heart cells are created by first genetically modifying adult human skin cells into induced pluripotent stem cells. Then, the induced stem cells are redesigned to create the Organoids.
In an interview with Popular Mechanics, the researchers stated that the cells have to be stored in the same temperature as the human body to beat. The team has said that they can “stimulate the miniature organ with electrical or chemical cues to alter the beating patterns. Also, when we grow them in three-dimensions it allows for them to interact with each other more easily, as they would in the human body.”
The $24 million project ultimately seeks to create several types of 3D Printed lab grown organs to have it perform the actual functions of the human organs.