Organ-on-a-chip has proven to be an extremely valuable technology utilized for disease modeling, drug testing and mimicking organ function. The Allevi organ-on-a-chip protocol allows you to build structures with controlled inner and outer geometries for liquid perfusion that can simulate blood flow and re-create organ systems. The chips which are cast in PDMS are made out of a sacrificial material that can be printed in any 3D structure, carbohydrate glass by Volumetric Inc and featured in Nature Materials. Final prototypes can be autoclaved, seeded with cells and connected to pumps or bioreactors for different 3D studies.
Check out the Organ-on-a-Chip protocol.