Figure 2
From: Drug response analysis for scaffold-free cardiac constructs fabricated using bio-3D printer
Fabrication of scaffold-free tubular cardiac constructs. (a) Representative images of the fabricated tubular cardiac constructs immediately following printing and culture on the needle array for 7 days. (b) Immunohistochemical analysis of the cardiac constructs. The sample were observed at low (4×) and high (20×) magnification. iCells were identified by troponin T staining, whereas HUVECs and NHDFs were stained with CD31 and vimentin, respectively. Scale bar = 100 μm.
