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Electron micrograph and image obtained by Atomic Force Microscopy. (A) The image shows two negatively stained collagen fibrils, demonstrating the regular banding pattern of collagen. Bar: 100 nm (B) 3D reconstruction of an atomic force micrograph, which reveals the characteristic collagen banding pattern and shows a collagen fibril end (indicated by arrow). The original image in 2D has a size of 2 μm × 2 μm.
