Fig. 4From: Potential use of 3D-printed graphene oxide scaffold for construction of the cartilage layerChondrocyte proliferation revealed by qualitative analysis for chondrocyte cultured on the 3D printing scaffold with graded GO, by 1%, 3%, 5%, and 7% micro-GO scaffold, that for 10% was higher than for the other groups (bar = 200 μm)Back to article page