Lee Duck Weon, Kim Shi Hyeong, Kozlov Mikhail E, Lepró Xavier, Baughman Ray H, Kim Seon Jeong
Center for Self-Powered Actuation, Department of Biomedical Engineering, Hanyang University Seoul 04763 Korea
The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas Richardson TX 75083 USA.
RSC Adv. 2018 May 11;8(31):17421-17425. doi: 10.1039/c8ra01040d. eCollection 2018 May 9.
Magnetically driven torsional actuation of a multiwalled carbon nanotube (MWNT) yarn was realized by first biscrolling NdFeB magnetic particles into helical yarn corridors to make a magnetic MWNT yarn. The actuating device comprised a pristineMWNT yarn that was connected to the magnetic MWNT yarn, with a paddle attached between these yarns. The application of a magnetic field reversibly drove torsional actuation of up to 80° within ∼0.67 seconds. This magnetic actuator was remotely powered, and its actuation stroke was the same when the muscle array was at 20 °C and at -100 °C.
通过首先将钕铁硼磁性颗粒双螺旋卷绕到螺旋纱线通道中制成磁性多壁碳纳米管(MWNT)纱线,实现了MWNT纱线的磁驱动扭转驱动。该驱动装置包括一根原始的MWNT纱线,它与磁性MWNT纱线相连,在这些纱线之间连接有一个桨叶。施加磁场可在约0.67秒内可逆地驱动高达80°的扭转驱动。该磁致动器由远程供电,当肌肉阵列处于20°C和-100°C时,其驱动行程相同。