What Is Failure? Nanoscaled Biomechanics of Collagen Disruption In Tissues & Semi-Synthetic Fibres

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Collagen’s evolutionary longevity is a tribute to the survival value of its complex, self-assembled structure. While both elasticity and overload damage have been studied extensively at the light microscope level in connective tissues, it is below that scale—really at the nanometer scale—where mechanical load is borne. It is there that collagen’s strength is achieved—and perhaps more important for survival, where its toughness is determined. For the last 10 years or so, I have been interested in two fundamental questions: