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Droplets capped with an elastic film can be round, elliptical, or nearly square

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 نشر من قبل Kari Dalnoki-Veress
 تاريخ النشر 2018
  مجال البحث فيزياء
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We present experiments which show that the partial wetting of droplets capped by taut elastic films is highly tunable. Adjusting the tension allows the contact angle and droplet morphology to be controlled. By exploiting these elastic boundaries, droplets can be made elliptical, with an adjustable aspect ratio, and can even be transformed into a nearly square shape. This system can be used to create tunable liquid lenses, and moreover, presents a unique approach to liquid patterning.

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