Micro cell patterning technology by dielectrophoresis and application to regenerated cartilage

Yoshitaka Takeuchi, Shogo Miyata

Research output: Contribution to journalArticle

Abstract

Recently, microfabrication tools have been utilized to quantify the role of the cellular microenvironment on cell activity and function. Improving tissue regeneration by cell culture on scaffold material will also require tools to control cellular organization in 3-dimentional (3-D) condition. Our objective was to improve cartilage tissue engineering using 3-D cell organization technology. In this study, we developed an anisotropic cartilaginous tissue by cell patterning within hydrogel slabs using dielectrophoretic (DEP) forces. Our data indicate that the embedded chondrocytes remained viable and reconstructed cartilaginous tissue along the patterned cell array. In conclusion, DEP cell patterning may become a useful approach for reconstructing anisotropic structure in cartilage regeneration.

Original languageEnglish
Pages (from-to)3015-3020
Number of pages6
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume76
Issue number771
Publication statusPublished - 2010 Nov

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Cartilage
Electrophoresis
Tissue
Tissue regeneration
Microfabrication
Scaffolds (biology)
Tissue engineering
Cell culture
Hydrogels

Keywords

  • Anisotropy
  • Biomaterial
  • Biomechanics
  • Dielectrophoresis
  • Regenerated cartilage
  • Tissue engineering

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

Cite this

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AB - Recently, microfabrication tools have been utilized to quantify the role of the cellular microenvironment on cell activity and function. Improving tissue regeneration by cell culture on scaffold material will also require tools to control cellular organization in 3-dimentional (3-D) condition. Our objective was to improve cartilage tissue engineering using 3-D cell organization technology. In this study, we developed an anisotropic cartilaginous tissue by cell patterning within hydrogel slabs using dielectrophoretic (DEP) forces. Our data indicate that the embedded chondrocytes remained viable and reconstructed cartilaginous tissue along the patterned cell array. In conclusion, DEP cell patterning may become a useful approach for reconstructing anisotropic structure in cartilage regeneration.

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