Establishment of a fabrication method for a long-term actuated hybrid cell robot

Jinseok Kim, Jungyul Park, Sungwook Yang, Jeongeun Baek, Byungkyu Kim, Sang Ho Lee, Eui Sung Yoon, Kukjin Chun, Sukho Park

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)


We developed a novel method to fabricate a crab-like microrobot that can actuate for a long period in a physiological condition. The microrobot backbone was built with a biocompatible and elastic material - polydimethylsiloxane (PDMS) - by using a specially designed 3D molding aligner, and consisted of three strips of PDMS "legs" connected across a "body." Cardiomyocytes were then plated on the grooved top surface of the backbone, resulting in a high concentration of pulsating cells. These key techniques enabled the microrobot to walk continuously for over ten days. The performance of our crab-like microrobot was measured at an average velocity of 100 μm s-1, and the estimated total distance it travelled was 50 m over a one-week period. Thus, we have demonstrated for the first time a walking robot that exhibited reliable and long-term actuation performances.

Original languageEnglish
Pages (from-to)1504-1508
Number of pages5
JournalLab on a Chip
Issue number11
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Chemistry(all)
  • Biomedical Engineering


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