재구성 및 적응형 구동을 위한 온도 반응형 자기 섬모

Abstract

In this study, we report on the design, fabrication, and characterization of temperature-triggered magnetic cilia for reconfigurable and adaptive actuation. The temperature-responsive magnetic cilia are composed of magnetic cobalt nanoparticles that are coated by oleic acid to increase their dispersion which can be actuated by an external magnetic field to induce bending and twisting motions. Also, it includes temperature-responsive wax materials including paraffin wax and paraffin liquid that allow for dynamic control of the cilia's stiffness and shape. By modulating the temperature of the surrounding environment, we demonstrate that our cilia can exhibit a wide range of behaviors, including spontaneous reconfiguration, directional motion, and self-adaptation to complex environments. Also, according to the substance of the surface, the behavior of the cilia liquid could be controlled. Our approach represents a promising strategy for the development of microscale devices with enhanced functionality and versatility, and has potential applications in fields such as biomedical engineering, environmental monitoring, and microfluidics.