Nano Science and Technology Institute
Nanotech 2003 Vol. 3
Nanotech 2003 Vol. 3
Technical Proceedings of the 2003 Nanotechnology Conference and Trade Show, Volume 3
 
Chapter 2: Nano Particles and Molecules
 

Criterion for Electrostatic Detachment of an Adhering Microparticle

Authors:S. Saito, H. Himeno, K. Takahashi and T. Onzawa
Affilation:Tokyo Institute of Technology, JP
Pages:98 - 101
Keywords:electrostatic, micro, manipulation, adhesion, detachment, voltage
Abstract:During micromanipulation, the influence of gravitational force becomes extremely small. The adhesional force is more significant for smaller objects. An adhered object can be detached by electrostatic interaction. In our earlier study, the electrostatic force generated by an applied voltage and the voltage required for detachment have been theoretically analyzed using the boundary element method (BEM). The system consists of a manipulation probe, a spherical microparticle, and a substrate plate. These objects are all conductive. In this study, the voltage for detachment of a microparticle with a 30 micrometer diameter is experimentally clarified, and is revealed to be in good agreement with the voltage predicted by the BEM analysis. In addition, phenomena other than detachment are discussed based on observations through an optical video microscope. These results provide us with knowledge about the strategy for reliable electrostatic micromanipulation.
Criterion for Electrostatic Detachment of an Adhering MicroparticleView PDF of paper
ISBN:0-9728422-2-5
Pages:560
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