Biomedical Microdevices

, Volume 9, Issue 5, pp 637–645 | Cite as

Microfluidic devices for size-dependent separation of liver cells

  • Masumi Yamada
  • Kyoko Kano
  • Yukiko Tsuda
  • Jun Kobayashi
  • Masayuki Yamato
  • Minoru Seki
  • Teruo Okano
Article

Abstract

Liver is composed of various kinds of cells, including hepatic parenchymal cells (hepatocytes) and nonparenchymal cells, and separation of these cells is essential for cellular therapies and pharmacological and metabolic studies. Here, we present microfluidic devices for purely hydrodynamic and size-dependent separation of liver cells, which utilize hydrodynamic filtration. By continuously introducing cell suspension into a microchannel with multiple side-branch channels, cells smaller than a specific size are removed from the mainstream, while large cells are focused onto a sidewall in the microchannel and then separated into two or three groups. Two types of PDMS-glass hybrid microdevices were fabricated, and rat liver cells were successfully separated. Also, cell size, morphology, viability and several cell functions were analyzed, and the separation performances of the microfluidic devices were compared to that of a conventional centrifugal technique. The results showed that the presented microfluidic devices are low-cost and suitable for clinical use, and capable of highly functional separation with relatively high-speed processing.

Keywords

Liver cell Hepatocyte Hydrodynamic filtration Microfluidic device Separation 

Supplementary material

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Masumi Yamada
    • 1
  • Kyoko Kano
    • 1
  • Yukiko Tsuda
    • 2
  • Jun Kobayashi
    • 1
  • Masayuki Yamato
    • 1
  • Minoru Seki
    • 3
  • Teruo Okano
    • 1
  1. 1.Institute of Advanced Biomedical Engineering and ScienceTokyo Women’s Medical UniversityTokyoJapan
  2. 2.Graduate School of Pure and Applied SciencesUniversity of TsukubaIbarakiJapan
  3. 3.Department of Chemical Engineering, Graduate School of EngineeringOsaka Prefecture UniversityOsakaJapan

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