Figure 6.

Extrusion printing with granular hydrogels. a) Macroscopic images depicting the stability of extrusion printed stars using control (top) or adhesive (bottom) granular hydrogels, showing printed star, manipulation, shape stability in upon agitation in phosphate-buffered saline (PBS), and long-term stability of adhesive granular hydrogel constructs (36 days). b) Macroscopic images of extrusion structures fabricated with adhesive granular hydrogels, including an outline of the LOVE statue found in Philadelphia (left), a 2 cm-tall hollow cylinder (center), a 1 cm-tall pyramid that can be inverted and maintain its shape (center), and a suspended star outline supported by the tops of five microcentrifuge tubes (right).