By turning modified inkjet printers into 3d printers, scientists are producing three-dimensional living biological tissue. The printer cartridges are washed out and filled with a suspension of living cells and a “smart gel”. Alternating patterns of the smart gel and living cells are printed using a standard print nozzle. The cells fuse together to form tissue. When finished, the gel is cooled and washed away, leaving behind only the live cells.

Regenerative medicine is the “process of replacing or regenerating human cells, tissues or organs to restore or establish normal function”.

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