Login / Signup

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

Manmatha MahatoWon-Jun HwangRassoul TabassianSaewoong OhVan Hiep NguyenSanghee NamJi-Seok KimHyunjoon YooAshhad Kamal TaseerMyung-Joon LeeHuapeng ZhangTae-Eun SongIl-Kwon Oh
Published in: Advanced materials (Deerfield Beach, Fla.) (2022)
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.
Keyphrases
  • metal organic framework
  • molecularly imprinted
  • cancer therapy
  • ionic liquid
  • high speed
  • gold nanoparticles
  • mass spectrometry
  • energy transfer
  • minimally invasive
  • high resolution
  • robot assisted
  • label free