Propulsion with a Rotating Elastic Nanorod

Details Propulsion with a Rotating Elastic Nanorod Propulsion with a Rotating Elastic Nanorod

2006-02-09

arxiv.org/abs/cond-mat/0602238v1

Physical Review Letters, vol 96, 068101 (2006)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures, to be published in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.96.068101

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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