Electrowetting-enhanced microfluidic device for drop generation

被引：43

作者：

Gu, Hao ^{[1
]}

Malloggi, Florent

Vanapalli, Siva A.

Mugele, Frieder

机构：

[1] Univ Twente, IMPACT, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 18期

关键词：

drops; microfluidics; wetting;

D O I：

10.1063/1.3013567

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We integrated electrowetting into a microfluidic flow focusing device to study drop generation under the influence of electric fields. Using both the dispersed phase inlet pressure and the applied voltage as control parameters, we find that the range of drop sizes and the drop generation rate can be controlled in a much finer way than with hydrodynamics alone. In particular a "conical spray" regime occurring at a voltage of O(50 V) allows for continuous tuning of the (highly monodisperse) drop diameter from approximate to 5 to 50 mu m at a fixed continuous flow rate.

引用

页数：3

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