Dielectrophoretic manipulation of drops for high-speed microfluidic sorting devices

被引：378

作者：

Ahn, K

Kerbage, C

Hunt, TP

Westervelt, RM

Link, DR

Weitz, DA ^{[1
]}

机构：

[1] Harvard Univ, DEAS, Cambridge, MA 02138 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] RainDance Technol, Guilford, CT 06437 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2164911

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a high-throughput drop sorter for microfluidic devices that uses dielectrophoretic forces. Microelectrodes underneath a polydimethylsiloxane channel produce forces of more than 10 nN on a water drop in an inert oil, resulting in sorting rates greater than 1.6 kHz. We investigate the dependence of such forces on drop size and flow. Alternate designs with electrodes on either side of a symmetric channel Y junction provide refined control over droplet selection.

引用

页码：1 / 3

页数：3

共 17 条

[1] Formation of dispersions using "flow focusing" in microchannels [J].