Figure 4.

photographs of the bioprinted templates (green) enclosed in gelma hydrogels and the respective microchannels perfused with a fluorescent microbead suspension (pink). a) planar bifurcating bioprinted templates in a gelma hydrogel construct and (a-i) respective network after perfusion. b) 3d branching agarose templates embedded in agelma hydrogel construct and (b-i) resulting 3d branching network. c) 3d lattice template embedded in a gelma hydrogel and (c-i) after perfusion. (scale bars 3 mm, microchannels have 500 μmin diameter)