Trapping and storage of particles in electroactive microwells
Trapping and storage of particles in electroactive microwells
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DOI：
10.1063/1.2430775
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发表时间：
2007-01-08
影响因子：
4
通讯作者：
Erickson, David
中科院分区：
文献类型：
--
作者：
Cordovez, Bernardo;Psaltis, Demetri;Erickson, David
作者描述了电活性微孔，其利用高度局部化的动电效应，以便以明确限定的几何形状主动地浓缩、限制、储存和排斥颗粒。在这封信中，作者提出的实验结果表明，可重复的捕获和排斥的聚苯乙烯颗粒在威尔斯井直径范围从6至20 μ m的存在下，叠加的压力驱动流。一个全面的有限元模型来描述的吸引力和排斥过程中所涉及的运输物理。直接应用包括主动细胞捕获、颗粒浓缩和未标记传感。(c)2007年，美国物理学会。
The authors describe electroactive microwells which exploit highly localized electrokinetic effects in order to actively concentrate, confine, store, and reject particles in well defined geometries. In this letter the authors present experimental results demonstrating repeatable trapping and repulsion of polystyrene particles in wells ranging in diameter from 6 to 20 mu m in the presence of a superimposed pressure driven flow. A comprehensive finite element model is developed to describe the transport physics involved in the attraction and repulsion processes. Immediate applications include active cell trapping, particle concentration and unlabeled sensing. (c) 2007 American Institute of Physics.