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Length-Dependent Mechanics of Carbon-Nanotube Networks

Paper studies changing deformation mechanics of network of carbon nanotubes as function of nanotube length under static and dynamic (oscillatory) strain. Work shows network of short carbon nanotubes has deformation behaviour similar to that of rigid-rod network suspension, which in turn is model of actin filaments found in human tissues. Work helps establish universality of deformation behaviour of fibrous materials found in engineering (e.g. cellulose microfibres in paper and packaging) and biology (e.g. actin filaments). Work led to further work at US National Institute of Standards and Technology [contact: Leader, Sustainable Composites Project Polymers Division] on nano-materials characterisation.