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Investigation of a two-step device implementing magnetophoresis and dielectrophoresis for separation of circulating tumor cells from blood cells

Shamloo, A ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1002/elsc.202000001
  3. Publisher: Wiley-VCH Verlag , 2020
  4. Abstract:
  5. Identifying tumor cells from a pool of other cells has always been an appealing topic for different purposes. The objective of this study is to discriminate circulating tumor cells (CTCs) from blood cells for diagnostic purposes in a novel microfluidic device using two active methods: magnetophoresis and dielectrophoresis. The most specific feature of this device is the differentiation of CTCs without labeling them in order to achieve a more reliable and less complicated method. This device was analyzed and evaluated using finite element method. Four cell lines are separated in this device containing red blood cells, platelets, white blood cells, and CTCs. Primarily, red blood cells and platelets, which constitute the largest part of a blood sample, are removed in the magnetophoresis section. Remaining cells enter the dielectrophoresis part and based on their inherent dielectric properties and diameters, final separation occurs. In each step, different parameters are examined to obtain the maximum purification. The results demonstrate the potential of different CTCs separation by changing the effective parameters in the designed device based on the inherent properties of the cells. © 2020 The Authors. Engineering in Life Sciences published by Wiley-VCH Verlag GmbH & Co. KGaA
  6. Keywords:
  7. Dielectrophoresis ; Microfluidic ; Cell culture ; Diagnosis ; Dielectric properties ; Electrophoresis ; Platelets ; Separation ; Tumors ; Active method ; Blood samples ; Circulating tumor cells ; Effective parameters ; Magnetophoresis ; Micro-fluidic devices ; Red blood cell ; White blood cells ; Cells ; Blood ; Cell ; Differentiation ; Electrokinesis ; Identification method ; Magnetic method ; Separation ; Tumor ; Cancer model ; Cell separation ; Circulating tumor cell ; Controlled study ; Finite element analysis ; Human cell ; Leukocyte ; Magnetic separation ; Thrombocyte
  8. Source: Engineering in Life Sciences ; Volume 20, Issue 7 , 2020 , Pages 296-304
  9. URL: https://onlinelibrary.wiley.com/doi/full/10.1002/elsc.202000001