Electrohydrodynamic "drop-and-place" particle deployment

被引：43

作者：

Chen, CH ^{[1
]}

Saville, DA ^{[1
]}

Aksay, IA ^{[1
]}

机构：

[1] Princeton Univ, Dept Chem Engn, Princeton, NJ 08544 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 15期

关键词：

D O I：

10.1063/1.2191733

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The "drop-and-place" paradigm aims at delivering and positioning liquid drops using a pulsed electrohydrodynamic jet. On-demand drops much smaller than the diameter of the delivery nozzle may also contain particles. We report proof-of-concept experiments on the delivery of single 2 mu m diameter particles using a 50 mu m nozzle and identify the control parameters for dosing and positioning accuracies. A positioning accuracy at the micrometer level is achieved by eliminating contact line pinning on a hydrophobic surface and minimizing impingement-induced motion. The dosing statistics follow the random Poisson distribution, indicating that single-particle accuracy can be achieved using a gating mechanism. (c) 2006 American Institute of Physics.

引用

页数：3

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