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Trapping and Driving Individual Charged Micro-particles in Fluid with an Electrostatic Device.

ABSTRACT: A variety of micro-tweezers techniques, such as optical tweezers, magnetic tweezers, and dielectrophoresis technique, have been applied intensively in precise characterization of micro/nanoparticles and bio-molecules. They have contributed remarkably in better understanding of working mechanisms of individual sub-cell organelles, proteins, and DNA. In this paper, we present a controllable electrostatic device embedded in a microchannel, which is capable of driving, trapping, and releasing charged micro-particles suspended in microfluid, demonstrating the basic concepts of electrostatic tweezers. Such a device is scalable to smaller size and offers an alternative to currently used micro-tweezers for application in sorting, selecting, manipulating, and analyzing individual micro/nanoparticles. Furthermore, the system offers the potential in being combined with dielectrophoresis and other techniques to create hybrid micro-manipulation systems.

SUBMITTER: Xu J

PROVIDER: S-EPMC6223688 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Trapping and Driving Individual Charged Micro-particles in Fluid with an Electrostatic Device.

Xu Jingjing J Lei Zijing Z Guo Jingkun J Huang Jie J Wang Wei W Reibetanz Uta U Xu Shengyong S

Nano-micro letters 20160310 3

A variety of micro-tweezers techniques, such as optical tweezers, magnetic tweezers, and dielectrophoresis technique, have been applied intensively in precise characterization of micro/nanoparticles and bio-molecules. They have contributed remarkably in better understanding of working mechanisms of individual sub-cell organelles, proteins, and DNA. In this paper, we present a controllable electrostatic device embedded in a microchannel, which is capable of driving, trapping, and releasing charge ...[more]

PMID: 30460287

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