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

doi:10.1039/B705367C

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Lab on a Chip

Issue 11, 2007

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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 and Sukho Park

Lab Chip, 2007, 7, 1504-1508

DOI: 10.1039/B705367C
Received 11 Apr 2007, Accepted 24 Jul 2007
First published on the web 10 Aug 2007

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Abstract
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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.

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Supplementary movie 1 showing movement in the biomimetic microrobot
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Articles By

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

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

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