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Scientists have created artificial vascular networks for use in lab-grown organs, using sugar.
Before large three-dimensional human organs can be grown, scientists must figure out a reliable way of incorporating blood vessels into them – if the lab-grown organs simply take the form of a block of cells, the cells on the inside won’t be able to receive any nutrients, and will die.
Now, a team from the University of Pennsylvania and MIT has devised a way of building such vessels, using sugar. The scientists use a relatively inexpensive open-source RepRap 3D printer, which extrudes molten sugar...
