마이크로 채널 내에서의 유전영동을 이용한 입자의 연속적인 분리에 대한 연구 = Study on Continuous-Flow Particle Separation in a Microchannel using Dielectrophoresis

다국어 초록 (Multilingual Abstract)

In this work, a dielectrophoresis-based particle-separation device is developed which is to be
used to continuously separate particles in microchannels. We fabricated the particle-separation device with
combining the benefits of electrode-based DEP and insulator-based DEP. The DEP forces are generated
by an array of electrodes located in both sidewalls of a main channel. According to the magnitude and
frequency of electrical signals, particles with different dielectric properties experience different DEP
forces, and therefore, continuously move along different streamlines in the main flow channel without
need of pre-focusing process. Based on this mechanism, we examined the performance of the device by
controlling the trajectory of polystyrene particles. This device is applicable to the investigation of dielectric
properties of biological cells as well as the continuous separation of biological cells.

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