Fundamental characteristics of printed cell structures utilizing electrostatic inkjet phenomena

S. Umezu, T. Kitajima, H. Ohmori, Y. Ito

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

In this paper, we investigated the fundamental characteristics to print cells and cell structures utilizing electrostatic inkjet phenomena. When high voltage was applied to a tube filled with conductive liquid, a small droplet was formed at the end of the tube and separated repeatedly. These phenomena were the electrostatic inkjet. The electrostatic inkjet phenomena had two merits; those were high resolution and ability to eject highly viscous liquid. These merits were preferable to print liquid with cells and liquid with scaffolds because these liquids were relatively of high viscosity. There is concern about damage on cells by high voltage application. However, in spite of high voltage application, the ejected cells were living. Current was not flowing inside cells but around cells because the membrane resistance of cell was higher than the resistance of the medium. We demonstrated to print line shape, wall shape and cylinder shape that contained cells utilizing the electrostatic inkjet.

Original languageEnglish
Pages (from-to)251-255
Number of pages5
JournalSensors and Actuators, A: Physical
Volume166
Issue number2
DOIs
Publication statusPublished - 2011 Apr 1
Externally publishedYes

Keywords

  • Cell printing
  • Corona discharge
  • Electrostatic force
  • Electrostatic inkjet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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