Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Extremely large-area travelling-wave dielectrophoresis microbead separator using a multilayered bus bar

다층 버스 바를 이용한 극한 면적의 진행파 유전영동 미세입자 분류기

  • Choi, Eun-Pyo (Department of Mechanical Engineering, Sogang University) ;
  • Kim, Byung-Kyu (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Park, Jung-Yul (Department of Mechanical Engineering, Sogang University)
  • 최은표 (서강대학교 기계공학과) ;
  • 김병규 (한국항공대학교 항공우주 및 기계공학부) ;
  • 박정열 (서강대학교 기계공학과)
  • Published : 2009.03.31
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Abstract

A Multilayered microelectrode design is presented for large area travelling wave dielectrophoresis (TwDEP) separators. Most of typical TwDEP chip has been arrayed with 1000 electrodes in $20{\times}20\;mm^2$. However, there is a limitation of the device area that is critical in throughput, because when the area of TwDEP becomes larger, the resistance of microelectrodes for bus bar is also increased. In this paper, we successfully developed a novel TwDEP chip with extremely large area ($31{\times}25\;mm^2$) by a unique multilayered bus bar design. According to the resistance simulation of our microelectrodes, it is possible to realize a TwDEP chip with an infinite longitudinal length. We demonstrated the feasibility of our suggestion with latex microbeads and showed the potential of extremely high throughput separation with TwDEP technique.

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References

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