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Article Dans Une Revue Physical Review Letters Année : 2003

Motion of an Adhesive Gel in a Swelling Gradient: A Mechanism for Cell Locomotion

J.-F. Joanny
Frank Jülicher
Jacques Prost

Résumé

Motivated by the motion of nematode sperm cells, we present a model for the motion of an adhesive gel on a solid substrate. The gel polymerizes at the leading edge and depolymerizes at the rear. The motion results from a competition between a self-generated swelling gradient and the adhesion on the substrate. The resulting stress provokes the rupture of the adhesion points and allows for the motion. The model predicts an unusual force-velocity relation which depends in significant ways on the point of application of the force.

Dates et versions

hal-03301415 , version 1 (27-07-2021)

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J.-F. Joanny, Frank Jülicher, Jacques Prost. Motion of an Adhesive Gel in a Swelling Gradient: A Mechanism for Cell Locomotion. Physical Review Letters, 2003, 90 (16), pp.168102. ⟨10.1103/PhysRevLett.90.168102⟩. ⟨hal-03301415⟩
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