Insect Muscular Tissue-Powered Swimming Robot

Actuators

Yoshitake Akiyama¹  Kaoru Uesugi²  Minamida Hiroki²  Keisuke Morishima²  Yaxiaer Yalikun³  Yo Tanaka⁴  Yigang Shen⁴ 

[1] Department of Mechanical Engineering and Robotics, Shinshu University, Ueda 3868567, Japan;Department of Mechanical Engineering, Osaka University, Suita 5650871, Japan;Division of Materials Science, Nara Institute of Science and Technology, Ikoma 6300192, Japan;Laboratory for Integrated Biodevices, Center for Biosystems Dynamics Research, RIKEN, Suita 5650871, Japan;

关键词: bio-actuator;    insect muscular tissue;    autonomous swimming;    spontaneous contraction;   

DOI  :  10.3390/act8020030

来源: DOAJ

【 摘 要 】

Bio-actuators that use insect muscular tissue have attracted attention from researchers worldwide because of their small size, self-motive property, self-repairer ability, robustness, and the need for less environment management than mammalian cells. To demonstrate the potential of insect muscular tissue for use as bio-actuators, three types of these robots, a pillar actuator, a walker, and a twizzer, have been designed and fabricated. However, a model of an insect muscular tissue-powered swimming robot that is able to float and swim in a solution has not yet been reported. Therefore, in this paper, we present a prototype of an insect muscular tissue-powered autonomous micro swimming robot that operates at room temperature and requires no temperature and pH maintenance. To design a practical robot body that is capable of swimming by using the force of the insect dorsal vessel (DV), we first measured the contraction force of the DV. Then, the body of the swimming robot was designed, and the design was confirmed by a simulation that used the condition of measured contraction force. After that, we fabricated the robot body using polydimethylpolysiloxane (PDMS). The PDMS body was obtained from a mold that was fabricated by a stereo lithography method. Finally, we carefully attached the DV to the PDMS body to complete the assembly of the swimming robot. As a result, we confirmed the micro swimming robot swam autonomously at an average velocity of 11.7 μm/s using spontaneous contractions of the complete insect DV tissue. These results demonstrated that the insect DV has potential for use as a bio-actuator for floating and swimming in solution.

【 授权许可】

Unknown