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Model railways: Microtubules (MTs) are filamentous proteins involved in several physiological processes such cell division, neurotransmitter-filled-vesicle transport, or cell migration (see picture). The shear and Young's modulus of these filamentous structures have recently been measured by atomic force microscopy. Their values were used to build a finite element model of MT and to explore its behaviour under load.
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Kasas et al. (2004) studied this question.
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