'We now have the freedom to build many of the intricate structures found in the body,' an author of the study featured on the front cover of the journal Science said.
Scientists have come a step closer to creating working 3D-printed organs, using food dye to create a tangled network of vessels that resemble those populating the human body.
Study co-author Kelly Stevens, an assistant professor at the University of Washington who runs a lab investigating printing human tissue from stem cells, explained to Newsweek:"The body contains various networks of 'pipes' that bring nutrients to—and remove waste from—the organs in our body. One day, the team hopes, 3D-printed tissue could help to chip away at the organ donor waiting list, which over 100,000 people in the U.S. alone are currently on. Scientists have been struggling for decades to invent methods that could help achieve this goal.
She said the liver is a particularly interesting organ to investigate as it has 500 functions, and is likely the busiest organ other than the brain. Dr Bing Hu, associate professor in oral and dental health research at the University of Plymouth, told Newsweek: “This study shows significant progress in printable synthetic biomaterials, because a major limit at the moment for the 3D bio-printing field is the hydrogel being able to integrate different cell types, particularly endothelial cells—those that line the interior surface of blood vessels.
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