Vascularized human tissue printed with unprecedented speed and precision

Prellis Biologics (CA, USA) has solved a major hurdle in utilizing 3D printing to produce organs and tissue for human transplantation. Video: This real-time video shows tiny florescent particles – 5 microns in diameter (the same size as a red blood cell) – moving through an array of 105 capillaries printed in parallel, inside a 700 micron diameter tube. Each capillary is 250 microns long. Combining 3D printing with holograms has enabled Prellis Biologics (CA, USA) to produce human tissue with microvasculature, which enables it to survive much longer. Previously, bioprinted tissue was printed in thin sheets that could be...