Fig. 4From: Structure and mechanical properties of high-weight-bearing and low-weight-bearing areas of hip cartilage at the micro- and nano-levelsRepresentative image of the atomic force microscope (AFM) nano-scale morphology of cartilage of two areas. (a) High-weight-bearing area (HWA) nano-scale cartilage morphology. (b) Low-weight-bearing area (LWA) nano-scale cartilage morphology. (c) Diameter of collagen fibers of two areas (n = 6 per area)Back to article page