期刊
ANALYTICAL CHEMISTRY
卷 88, 期 11, 页码 5696-5703出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.5b04481
关键词
-
资金
- Australian Research Council [DP110104010]
We present a simple method for on-demand manipulation of aqueous droplets in oil. With numerical simulations and experiments, we show that a-vibrating membrane can produce acoustic streaming. By making use of this vortical flow, we manage to repulse the droplets away from the membrane edges. Then, by simply aligning the membrane at 45 to the flow, the droplets can be forced to follow the membrane's boundaries, thus steering them across streamlines and even between different oil types. We also characterize the repulsion and steering effect with various excitation voltages at different water and oil flow rates. The maximum steering frequency we have achieved is 165 Hz. The system is extremely robust and reliable: the same membrane can be reused after many days and with different oils and/or surfactants at the same operating frequency.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据