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The process of creating the heart began with a biopsy of adipose tissue taken from patients. The cellular material of the tissues was used as "ink" for the print job. This allowed researchers to create complex tissue models including heart patches and possibly an entire heart. It should be noted that the heart is not very big – it is only about the size of a rabbit heart. But the technology that made this possible could eventually lead to the production of a human-sized organ. At the moment, hearts can only shrink, but researchers plan to cultivate hearts printed in 3D and teach them how to function as if nothing had happened. Once this process is complete, they will attempt to transplant them into animal models.
Researchers have been working on 3D printed fabrics for years, with the ultimate goal of creating functional organs for transplantation. Scientists participating in the project on the heart of Tel Aviv University have speculated that in 10 years, organ printers might be available in hospitals.
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