833 電磁力を利用する粒子のマニピュレーション

概要

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Because manipulation of single particle is of great importance in areas of electronics and biology, we have been investigating an electrostatic manipulator consisted of two parallel pin electrodes. When voltage was applied between the electrodes, the particle was captured by the electrostatic force. However, if the particle was charged, Coulomb force and adhesion force prevented from releasing the particle when the voltage was turned off. An uneven electrode system was developed to release the attached particle. Three-dimensional field calculation was conducted to calculate the electrostatic force by the Finite Difference Method and compared to the measured force. It was deduced that the predominant force of particle adhesion is not electrophoresis force but Coulomb force due to triboelectrification.
一般社団法人日本機械学会の論文
2007-09-25