TY - JOUR
T1 - NIR-II light-encoded 4D-printed magnetic shape memory composite for real-time reprogrammable soft actuator
AU - Miao, Shushu
AU - Xing, Yue
AU - Li, Xu
AU - Sun, Bing
AU - Du, Zheyuan
AU - Cao, Hongshuo
AU - Guo, Pengfei
AU - Chang, Yincheng
AU - Tian, Yanhong
AU - Yao, Minghui
AU - Chen, Ke
AU - Xiao, Dengbao
AU - Zhang, Xuejun
AU - Zhao, Biao
AU - Pan, Kai
AU - Sun, Jiangman
AU - Liang, Xiubing
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/10
Y1 - 2024/10
N2 - For the intelligent 4D-printed actuators, the excellent performance, including quickly reversible spatial-shape transformation and locking, digital and precise shape manipulation in real-time, and remote actuation in special spaces or harsh environments, is significantly desirable but still challenging. Here, using a UV-curable system containing the shape memory polymer (SMP) and NdFeB particles, namely the magSMP composite, we fabricate a real-time reprogrammable soft actuator via high-resolution Digital Light Processing (DLP)-based 4D printing. The printed structure is composed of an array of physical binary magSMP composite elements (m-bits), analogous to digital bits. Owing to the NdFeB's photothermal effect, each m-bit can be independently and reversibly switched between unlocking or locking states (allowing or prohibiting responsive shape-morphing) in response to the on/off state of NIR-II light. Through projecting NIR-II light patterns for encoding a set of binary instructions onto 4D-printed actuators, the real-time light-programmed deformations are induced precisely under an actuation magnetic field due to the NdFeB's huge coercivity. Thus, the synergistic magnetic and light field-manipulated multimodal deformations of actuators, including mimosa shape changing, grasping, and wire guiding, are achieved. This study shines lights on the fabrication of soft structures of arbitrary sizes and provides their future perspectives in soft robot design.
AB - For the intelligent 4D-printed actuators, the excellent performance, including quickly reversible spatial-shape transformation and locking, digital and precise shape manipulation in real-time, and remote actuation in special spaces or harsh environments, is significantly desirable but still challenging. Here, using a UV-curable system containing the shape memory polymer (SMP) and NdFeB particles, namely the magSMP composite, we fabricate a real-time reprogrammable soft actuator via high-resolution Digital Light Processing (DLP)-based 4D printing. The printed structure is composed of an array of physical binary magSMP composite elements (m-bits), analogous to digital bits. Owing to the NdFeB's photothermal effect, each m-bit can be independently and reversibly switched between unlocking or locking states (allowing or prohibiting responsive shape-morphing) in response to the on/off state of NIR-II light. Through projecting NIR-II light patterns for encoding a set of binary instructions onto 4D-printed actuators, the real-time light-programmed deformations are induced precisely under an actuation magnetic field due to the NdFeB's huge coercivity. Thus, the synergistic magnetic and light field-manipulated multimodal deformations of actuators, including mimosa shape changing, grasping, and wire guiding, are achieved. This study shines lights on the fabrication of soft structures of arbitrary sizes and provides their future perspectives in soft robot design.
KW - DLP-based 4D-printing
KW - NIR-II light encoding
KW - Real-time reprogrammable actuation
KW - Soft actuators
KW - Synergistic field manipulation
UR - http://www.scopus.com/inward/record.url?scp=85202819298&partnerID=8YFLogxK
U2 - 10.1016/j.apmt.2024.102413
DO - 10.1016/j.apmt.2024.102413
M3 - Article
AN - SCOPUS:85202819298
SN - 2352-9407
VL - 40
JO - Applied Materials Today
JF - Applied Materials Today
M1 - 102413
ER -