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Evaluation of thermal response on microgel aggregate toward micro gel actuators

2019; Japan Society Mechanical Engineers; Volume: 2019; Linguagem: Inglês

10.1299/jsmermd.2019.2a1-l07

2424-3124

Hisae SUENAGA, Haruka Minato, Daisuke Suzuki, Yoshitake Akiyama,

Micro and Nano Robotics

A biocompatible soft micromachine is desirable to manipulate small biological objects like cells. This paper evaluated thermal responses of thermal responsive microgel aggregate to utilize as an actuator. The microgel aggregate was fabricated by gathering both microgels charged positively and negatively based on relative diamagnetic assembly. The aggregate shrank when it was heated up to 40 °C and expanded when it was returned to room temperature. The area shrinkage ratio between 25 to 40 °C was about 9 %, which is comparable to conventional actuators. The result shows that the aggregate of thermal responsive microgels is applicable for an actuator of soft micromachine.