期刊
MICROFLUIDICS AND NANOFLUIDICS
卷 10, 期 6, 页码 1269-1278出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10404-010-0758-1
关键词
Micropumps; Acoustic; Simulations; Microstreaming
资金
- DARPA S&T through the Micro/nano Fluidics Fundamentals Focus (MF3) Center [HR0011-06-1-0050]
An acoustically activated micropump is fabricated and demonstrated using a single step lithography process and an off-chip acoustic energy source. Using angled lateral cavities with trapped air bubbles, acoustic energy is used to oscillate the liquid-air interface to create a fluidic driving force. The angled lateral cavity design allows for fluid rectification from the first-order pulsatile flow of the oscillating bubbles. The fluid rectification is achieved through the asymmetrical flow produced by the oscillating interface generating fluid flow away from the lateral cavity interface. Simulation and experimental results are used to develop a pumping mechanism that is capable of driving fluid at pressures of 350 Pa. This pumping system is then integrated into a stand-alone battery operated system to drive fluid from one chip to another.
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