The heart produced by researchers at Tel Aviv University is about the size of a rabbit’s. “People have managed to 3D-print the structure of a heart in the past, but not with cells or with blood vessels,” he said. Journalists were shown a 3D print of a heart about the size of a cherry, immersed in liquid, at Tel Aviv University on Monday as the researchers announced their findings, published in the peer-reviewed journal Advanced Science. Current 3D printers are also limited by the size of their resolution and another challenge will be figuring out how to print all small blood vessels. But while the current 3D print was a primitive one and only the size of a rabbit’s heart, “larger human hearts require the same technology,” said Dvir.
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