Food dye helps 3D-print vascular networks

An unexpected ingredient – food dye – could be used to 3D print biomaterials that contain intricate, physically intertwined networks similar to the vasculature in native tissue. This is the new finding from researchers at Rice University and the University of Washington in the US who have used the technique to make tissue that mimics the structure of the lung and liver-like tissue that they have successfully transplanted into mice.

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