Establishment of a fabrication method for a long-term actuated hybrid cell robot |
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Authors: | Kim Jinseok Park Jungyul Yang Sungwook Baek Jeongeun Kim Byungkyu Lee Sang Ho Yoon Eui-Sung Chun Kukjin Park Sukho |
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Institution: | Nano-Bio Research Center, Korea Institute of Science and Technology, Korea. |
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Abstract: | 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 microm 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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