Fig. 10From: Preparation of gamma poly-glutamic acid/hydroxyapatite/collagen composite as the 3D-printing scaffold for bone tissue engineeringH&E staining of the collagen-based 3D scaffolds and 2D membrane implanted in the rat model after weeks 1, 2, and 4 (blue arrows indicate the scaffolding areas, yellow arrows indicate blood vessel development, and the scale bar size is 100 µm for 10X and 20 µm for 40X magnification)Back to article page