Fig. 2.

Engineered renal tissues produced by single (left panel) and serial (right panel) reaggregation. Each contains nephrons (n: red) and collecting ducts (cd: green); in the single reaggregation system, the organ is disorganised because there are many collecting duct tree-lets rather than one tree. The serial reaggregation system generates a kidney organised around a single collecting duct tree. These micrographs are ‘spare’ images from data sets described in our earlier publications [21, 22]