Fig. 1
The schematic has been created using SmartServier Medical Art
In vitro bone nodule formation. Bone formation in a 2D, b 3D soft collagen scaffold, and c 3D dense collagen scaffold at 14 of BMA application. 2.5× Magnification, Scale bar = 500 μm. d Bone nodule formation timeline in 3D dense collagen. Height measurement of 21-day old bone nodules by Keyence VHX-7000 Digital Microscope (Keyence, Osaka, Japan). Scale bar (left image) = 10 μm.