Propulsion with a rotating elastic nanorod |
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Authors: | Manghi Manoel Schlagberger Xaver Netz Roland R |
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Institution: | Laboratoire de Physique Théorique, IRSAMC, Université Paul Sabatier, 31062 Toulouse, France. |
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Abstract: | The dynamics of a rotating elastic filament is investigated using Stokesian simulations. The filament, straight and tilted with respect to its rotation axis for small driving torques, undergoes at a critical torque a strongly discontinuous shape bifurcation to a helical state. It induces a substantial forward propulsion whatever the sense of rotation: a nanomechanical force-rectification device is established. |
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