“…The earliest example of this approach was by the Lewis group in 2011, 118 and a number of methods have been developed since. These include chopped slurries, 8,119,120 fluid gels, 7,121–124 nanoclays, 125,126 microgels, 117,127,128 polymer networks with dynamic or reversible bonds 9,111 and viscous solutions. 129,130 The increased shape complexity that can be achieved using this technique has made it an effective technique to print vascular networks within a tissue construct.…”