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Scientists bioprint the living tissue for a few seconds



The approach, bulk bioprinting, forms tissue by designing a laser down a rotating tube containing a hydrogel filled with stem cells. You can shape the resulting tissue by focusing the laser energy on specific locations to harden it, creating a useful 3D shape in seconds. It is then a matter of introducing endothelial cells to add vessels to the tissue.

The resulting tissues are currently only a few inches across. That's still enough to be "clinically useful," EPFL said, and is now used to print heart flaps, a complex part of the femur and meniscus. It can also create locking structures.

Although this is definitely not ready for real use, the applications are quite obvious. The EPFL imagines a new wave of "custom, functional" bodies manufactured at "unprecedented speed". This can be useful for implants and repairs and can significantly reduce the temptation to use animal testing ̵

1; you just have to create organs to simulate effects. This can be as much of a breakthrough in ethics as it is technical.


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