Fig. 5

a Schematic diagram of osteoblasts and BrCa cells mono- and co-cultured in the 3D bioprinted matrix. Proliferation of b osteoblasts and d BrCa cells mono- and co-cultured in the 3D bioprinted matrix after 1, 3 and 5 days. *P < 0.05, **P < 0.01. c, e Confocal micrographs of osteoblasts and BrCa cells co-cultured in the 3D bioprinted matrix after 1, 3 and 5 days. The middle columns in c, e represent the cross-sectional views. Osteoblasts and BrCa cells were stained by Cell Tracker Green CMFDA dye (green) and Orange CMTMR dye (red), respectively. Reprinted with permission from ref.¹²⁹ Copyright (2016) American Chemical Socie1ty