Surface folding-induced attraction and motion of particles in a soft elastic gel: cooperative effects of surface tension, elasticity, and gravity.

@article{Chakrabarti2013SurfaceFA,
  title={Surface folding-induced attraction and motion of particles in a soft elastic gel: cooperative effects of surface tension, elasticity, and gravity.},
  author={Aditi Chakrabarti and Manoj K Chaudhury},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2013},
  volume={29 50},
  pages={15543-50}
}
We report some experimental observations regarding a new type of long-range interaction between rigid particles that prevails when they are suspended in an ultrasoft elastic gel. A denser particle submerges itself to a considerable depth inside the gel and becomes elasto-buoyant by balancing its weight against the elastic force exerted by the surrounding… CONTINUE READING