Scientists Have 3D Bioprinted Functioning Human Brain Tissue

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As New Atlas explains, researchers placed neurons grown from pluripotent stem cells (those capable of becoming multiple different cell types) within a new
bio-ink gel made with fibrinogen and thrombin, biomaterials involved in blood clotting. Adding other hydrogels then helped loosen the bio-ink to solve
for the 3 encountered during previous 3D-printed tissue experiments.
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The new structures could interact thanks to producing neurotransmitters, and even created support cell networks within the 3D-printed tissue.
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Researchers believe their technique isn't limited to creating just those two types of cultures, but hypothetically "pretty much any type of neurons [sic] at any time,"