Title:
POROUS STRUCTURES AS ACTIVE MICROFLUIDIC COMPONENTS
Languages of Item:
English
Abstract:
Active control of droplet mobility through low cost tools is highly desirable in applications entailing microfluidics, Lab-on-Chip devices and pertinent technologies. Here, we present the design concepts of a versatile, low cost tool for dynamic droplet mobility manipulation, employing a scheme with backpressure application. Initially sticky open- or closed- channel fluidics with hydrophobic, porous walls are rendered slippery with the application of backpressure through the porous walls. Deliberate control of backpressure directs the wetting phenomena to the desired state. Operation parameters, and control system considerations are presented. Ultra-low backpressure values, are needed for channels with small cross-sections, which in turn are compatible with ultra-low energy demands.
Authors:
P. Marakis
N. Vourdas
E. Tsampasis
V.N. Stathopoulos
Publisher:
University of Ioannina
Conference title:
7th Panhellenic Symposium on Porous Materials
Keywords:
Porous materials, microfuidics, hydrophobic, wetting, switching, droplet, actuation
Main subject category:
Science
