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Dynamic separation of b-lymphoma cells from red blood cells using optically-induced electrokinetics

  • Wenfeng Liang
  • , Bin Liu
  • , Lianqing Liu
  • , Zaili Dong
  • , Gwo-Bin Lee
  • , Wen J. Li*
  • , Weijing Zhang
  • *Corresponding author for this work

    Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

    Abstract

    This study reports an approach to dynamically separate cultured human B-lymphoma (Raji) cells from normal human red blood cells (RBCs), mixed in an isotonic solution, by utilizing a hydrogenated amorphous silicon-based optically-induced electrokinetics chip. A theoretical calculation of the polarization model for the two different types of cells is first presented. The differential velocity between the cell types, generated as a result of the optically-induced dielectrophoresis (ODEP) force is obtained using a finite element method. The theoretical results indicate that the two types of cells could be separated by using the ODEP force. Experimental results verified that the two types of cells can be separated by using two optically projected lines of different widths, with one projected line moving and the other line stationary, as the virtual electrodes for generating the ODEP force. Separation is achieved with these virtual electrodes using a bias potential of 20 V pp at a driving frequency of 50 kHz. To the best of our knowledge, this work is the first experimental validation of rapid separation of Raji cells from RBCs using optically-induced electrokinetics. © 2013 IEEE.
    Original languageEnglish
    Title of host publication8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013
    Pages1253-1256
    DOIs
    Publication statusPublished - 2013
    Event8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS 2013) - Suzhou, China
    Duration: 7 Apr 201310 Apr 2013
    http://cnm.cust.edu.cn/en/node/26

    Conference

    Conference8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS 2013)
    Abbreviated titleNEMS 2013
    PlaceChina
    CitySuzhou
    Period7/04/1310/04/13
    Internet address

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Research Keywords

    • B-lymphoma cells
    • dielectrophoresis
    • optically-induced dielectrophoresis
    • red blood cells

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