Line tension effects for liquid droplets on circular surface domains.

@article{Blecua2006LineTE,
  title={Line tension effects for liquid droplets on circular surface domains.},
  author={Pedro Blecua and Reinhard Lipowsky and Jan Kierfeld},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2006},
  volume={22 26},
  pages={
          11041-59
        }
}
We study the morphologies of single liquid droplets wetting a substrate in the presence of the line tension of the three-phase contact line. On a homogeneous substrate, the line tension leads to a discontinuous unbinding of the droplet if its volume is decreased below a critical value. For a droplet wetting a structured surface with a circular domain, a line tension contrast gives rise to discontinuous depinning transitions of the contact line from the domain boundary as the droplet volume is… 
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