Rapid stimuli-responsivity of hydrogel microfiber actuator with surface porous structure

Masahiko Karube, Hiroaki Onoe

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

Abstract

This paper describes a stimuli-responsive microfiber-shaped hydrogel actuator with a porous surface layer. By using cellulose nanofibers as a sacrificial template material, we formed nanoscale pores on the surface of the microfiber in gentle condition, enabling the rapid response to external stimuli because the formed nanopores can work as pathways of fluid between inside and outside of the microfiber. We analyzed the formed nanopores by scanning electron microscope (SEM) and confirmed that the nanoporous hydrogel micro-actuator responded faster than the non-porous one. Our cellulose nanofiber-based nanoporous forming approach could be widely applied to polymer-based soft robotics and biomedical soft actuators because of its gentle and biocompatible processes.

Original languageEnglish
Title of host publication23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019
PublisherChemical and Biological Microsystems Society
Pages1186-1187
Number of pages2
ISBN (Electronic)9781733419000
Publication statusPublished - 2019
Event23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019 - Basel, Switzerland
Duration: 2019 Oct 272019 Oct 31

Publication series

Name23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019

Conference

Conference23rd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2019
CountrySwitzerland
CityBasel
Period19/10/2719/10/31

Keywords

  • Gel
  • Porous structure
  • Soft actuator
  • Stimuli-response

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering (miscellaneous)

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