Adjustment and Measurement of Contact Angle with Electrowetting on a Quartz-Crystal Microbalance

@inproceedings{Lin2018AdjustmentAM,
  title={Adjustment and Measurement of Contact Angle with Electrowetting on a Quartz-Crystal Microbalance},
  author={Jing-Wei Lin and Da-Shin Wang and Shih-Kang Fan},
  year={2018}
}
Electrowetting-on-dielectric (EWOD) has been widely exploited as an actuating force to manipulate liquids by surface tension and modulation of the contact angle on a microscale. To evaluate EWOD, an optical measurement of the droplet contact angle is conventional, but is constrained by the optical properties of the liquid, especially when two liquid phases (e.g., water in oil) are involved. We developed a non-optical method to study EWOD using a quartz-crystal microbalance (QCM). A QCM provides… CONTINUE READING

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