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Representative images of a collagen fibril on the MEMS devices. Left: A brightfield image of a collagen fibril adhered with epoxy droplets. Right: A fluorescent image of the collagen fibril when stretched beyond the yield strain stained with CHP. The outline of the MEMS device (violet) was drawn for clarity. The portion of the sample in the tested region had greater fluorescence intensity than in the control region. Scale bar: 65 μm
