Figure 1: Nano-morphology of 30 mm-deep layer articular cartilage of normal bovine (scale bars, 500 nm). (a)- (c) AFM topography, peak force error, and 3D topography of bovine articular cartilage in ultrapure water. (d)- (f) AFM topography, peak force error, and 3D topography of dehydrated bovine articular cartilage sections. White arrows in (b) and (e) point to thick fibrils with visible D-spacings which were recruited in the D-spacing analysis. Black arrows in (b) point to thin fibrils.