Locally Bendable Stimuli-Responsive Hydrogel Actuator with Axially Patterned Functional Materials

Nobuki Takeuchi, Shunsuke Nakajima, Ryuji Kawano, Yutaka Hori, Hiroaki Onoe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a locally bendable stimuli-responsive hydrogel actuator with axially patterned functional materials fabricated by a valve-controlled microfluidic device. By application of an external stimuli to the complete actuator, it can be locally bended owing to the axial pattern of the responsive and non-responsive material. These materials are axially patterned on a microfiber through the Y-shaped channel coupled with the open/close motion of the valves in the microfluidic device. The microfluidic device can regulate the on/off of the flow by thin membrane pneumatic valves controlled by a computer. The patterning frequency of the two materials in the microfiber could be adjusted by modifying the switching intervals of the solutions. Also, we successfully demonstrated the curvature-change through heating and cooling. We believe that this locally bendable stimuli-responsive hydrogel could contribute to microfiber-shaped soft actuators, biomedical sensors, and self-assembly of complex 3D microstructures.

Original languageEnglish
Title of host publication33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages243-244
Number of pages2
ISBN (Electronic)9781728135809
DOIs
Publication statusPublished - 2020 Jan
Event33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 - Vancouver, Canada
Duration: 2020 Jan 182020 Jan 22

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2020-January
ISSN (Print)1084-6999

Conference

Conference33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
CountryCanada
CityVancouver
Period20/1/1820/1/22

Keywords

  • Actuator
  • Microfiber
  • Stimuli-responsive hydrogel
  • Valve-controlled microfluidic device

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Takeuchi, N., Nakajima, S., Kawano, R., Hori, Y., & Onoe, H. (2020). Locally Bendable Stimuli-Responsive Hydrogel Actuator with Axially Patterned Functional Materials. In 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 (pp. 243-244). [9056321] (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS); Vol. 2020-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMS46641.2020.9056321