Increasing the Trapping Efficiency of Particles in Microfluidic Planar Platforms by Means of Negative Dielectrophoresis
详细信息 查看全文
- 作者：Fabrice Gielen ; Andrew J. deMello ; Tony Cass ; Joshua B. Edel
- 刊名：Journal of Physical Chemistry B
- 出版年：2009
- 出版时间：February 5, 2009
- 年：2009
- 卷：113
- 期：5
- 页码：1493-1500
- 全文大小：328K
- 年卷期：v.113,no.5(February 5, 2009)
- ISSN：1520-5207
文摘
We present a novel planar electrode geometry in which particles (typically 10 μm in diameter) are focused near a defined surface before being trapped using negative dielectrophoresis. The focusing element can deflect particles having speeds up to hundreds of micrometers per second. This trapping configuration results in improved trapping yields and a decrease in overall reagent consumption. Particles are trapped dynamically while flowing in a microfluidic channel.