Hundreds of thousands of people die annually because the demand for organs far exceeds the donor supply. Artificial organs could save those lives — and scientists just made a huge breakthrough in the field by “bio-printing” artificial vascular networks. Researchers from the University of Sydney, MIT, Harvard, and Stanford have successfully bio-printed blood vessels, offering 3D-printed organs access to nutrients, oxygen, and waste-disposal routes, according to a study published Monday.
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