That's what scientists at the University of California, San Diego have done by 3D-printing a liver-like device that's claimed capable of safely detoxifying blood.

Designed to be used outside the body, the device can sense, attract and neutralize toxins within the bloodstream. Nanoengineering Professor Shaochen Chen whose earlier work includes 3D printed blood vessels, created the liver-inspired device to capture pore-forming toxins capable of damaging cell membranes.