RochesterA $450 bioprinter prints living structures over 100 layers tall.
Commercial bioprinters cost upward of $100,000, and instructions for this one are public on GitHub.
Rochester researchers swapped the plastic filament extruder for a syringe pump and print into a support gel that holds bio-ink upright.
Depending on the bacteria, the prints could clean contaminated water or break down plastic.
Sources: Phys.org