Corpus ID: 53993771

Inverted Cheerios effect: Liquid drops attract or repel by elasto-capillarity

@inproceedings{Karpitschka2016InvertedCE,
  title={Inverted Cheerios effect: Liquid drops attract or repel by elasto-capillarity},
  author={S Karpitschka and Ashok kumar Pandey and L. Alrik Lubbers and Joost H. Weijs and Lorenzo Botto and Sukhendu Das and Bruno Andreotti and J. H. Snoeijer},
  year={2016}
}
  • S Karpitschka, Ashok kumar Pandey, +5 authors J. H. Snoeijer
  • Published 2016
  • Physics
  • Solid particles floating at a liquid interface exhibit a long-ranged attraction mediated by surface tension. In the absence of bulk elasticity, this is the dominant lateral interaction of mechanical origin. Here we show that an analogous long-range interaction occurs between adjacent droplets on solid substrates, which crucially relies on a combination of capillarity and bulk elasticity. We experimentally observe the interaction between droplets on soft gels and provide a theoretical framework… CONTINUE READING

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