Laplace Barriers for Electrowetting Thresholding and Virtual Fluid Confinement
2010; American Chemical Society; Volume: 26; Issue: 23 Linguagem: Inglês
10.1021/la104090t
ISSN1520-5827
AutoresEric Kreit, Manjeet Dhindsa, Shu Yang, M. Hagedon, Kui Zhou, Ian Papautsky, Jason Heikenfeld,
Tópico(s)Electrohydrodynamics and Fluid Dynamics
ResumoReported are Laplace barriers consisting of arrayed posts or ridges that impart ∼100 to 1000 s of N/m2 Laplace pressure for fluid confinement, but the Laplace pressure is also small enough such that the barriers are porous to electrowetting control. As a result, the barriers are able to provide electrowetting flow thresholding and virtual fluid confinement in noncircular fluid geometries. A simple theoretical model for the barriers and experimental demonstrations validate functionality that may be useful for lab-on-chip, display devices, and passive matrix control, to name a few applications.
Referência(s)