A Dual-Responsive Magnetoactive and Electro–Ionic Soft Actuator Derived from a Nickel-Based Metal–Organic Framework

Manmatha Mahato, Won Jun Hwang, Rassoul Tabassian, Saewoong Oh, Van Hiep Nguyen, Sanghee Nam, Ji Seok Kim, Hyunjoon Yoo, Ashhad Kamal Taseer, Myung Joon Lee, Huapeng Zhang, Tae Eun Song, Il Kwon Oh*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

1 Citation (Scopus)

Abstract

There is growing demand for multiresponsive soft actuators for the realization of natural, safe, and complex motions in robotic interactions. In particular, soft actuators simultaneously stimulated by electrical and magnetic fields are always under development owing to their simple controllability and reliability during operation. Herein, magnetically and electrically driven dual-responsive soft actuators (MESAs) derived from novel nickel-based metal–organic frameworks (Ni-MOFs-700C), are reported. Nanoscale Ni-MOFs-700C has excellent electrochemical and magnetic properties that allow it to be used as a multifunctional material under both magnetoactive and electro-ionic actuations. The dual-responsive MESA exhibits a bending displacement of 30 mm and an ultrafast rising time of 1.5 s under a very low input voltage of 1 V and also exerts a bending deflection of 12.5 mm at 50 mT under a high excitation frequency of 5 Hz. By utilizing a dual-responsive MESA, the hovering motion of a hummingbird robot is demonstrated under magnetic and electrical stimuli.

Original languageEnglish
Article number2203613
JournalAdvanced Materials
Volume34
Issue35
ISSN0935-9648
DOIs
Publication statusPublished - Sept 2022

Keywords

  • complex robotic interactions
  • electroactive actuation
  • magnetoactive actuation
  • metal–organic frameworks
  • multiresponsive soft actuators

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