Elastic deformations of grafted layers with surface stress.

  title={Elastic deformations of grafted layers with surface stress.},
  author={Alice Nicolas and Samuel A. Safran},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={69 5 Pt 1},
We calculate the elastic response of thin films grafted to a solid substrate whose upper surface is subject to a stress. This issue is addressed in the context of biological cell adhesion where adhesive junctions consist of a thin layer of proteins grafted to the extracellular matrix and sheared by the cell contractility apparatus. We show that the finite thickness of the layer limits stress-induced deformations to short ranges proportional to the thickness of the film. In addition, we show… CONTINUE READING