3-D Bioprinting University of Bristol

Researchers at the University of Bristol (UK) have been able to 3-D print a full-size tracheal cartilage using relatively new bio-inks. According to this piece, “The bio-ink formulation the British researchers came up with for their two-step 3-D printing process includes two different polymer components: a natural polymer extracted from seaweed, and a sacrificial synthetic polymer used in the medical device industry. The synthetic polymer causes the bio-ink to change from liquid to solid when the temperature is raised, while the seaweed polymer offers structural support when cell nutrients are introduced.” With seeded stem cell-derived osteoblasts and nutrients, the printed tissue expelled the synthetic polymer, leaving a porous structure in which the cells could absorb nutrients.  MORE

Image Credit: University of Bristol and QMed.com