PMID- 35584225 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230331 IS - 2375-2548 (Electronic) IS - 2375-2548 (Linking) VI - 8 IP - 20 DP - 2022 May 20 TI - Shape-programmable, deformation-locking, and self-sensing artificial muscle based on liquid crystal elastomer and low-melting point alloy. PG - eabn5722 LID - 10.1126/sciadv.abn5722 [doi] LID - eabn5722 AB - An artificial muscle capable of shape programmability, deformation-locking capacity without needing continuous external energy, and self-sensing capability is highly desirable yet challenging in applications of reconfigurable antenna, deployable space structures, etc. Inspired by coupled behavior of the muscles, bones, and nerve system of mammals, a multifunctional artificial muscle based on polydopamine-coated liquid crystal elastomer (LCE) and low-melting point alloy (LMPA) in the form of a concentric tube/rod is proposed. Thereinto, the outer LCE is used for reversible contraction and recovery (i.e., muscle function); the inner LMPA in the resolidification state is adopted for deformation locking, and that in the melt state is adopted for angle variation monitoring by detecting resistance change (i.e., bones and nerve functions, respectively). The proposed artificial muscle demonstrates multiple performances, including controllable bending angle, position, and direction; deformation locking for supporting heavy objects; and real-time monitoring of angle variation, which also provides a straightforward and effective approach for designing soft devices. FAU - Liu, Haoran AU - Liu H AUID- ORCID: 0000-0003-3017-7483 AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. AD - Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Tian, Hongmiao AU - Tian H AUID- ORCID: 0000-0002-7377-8492 AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Li, Xiangming AU - Li X AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Chen, Xiaoliang AU - Chen X AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Zhang, Kai AU - Zhang K AUID- ORCID: 0000-0002-8698-4148 AD - School of Information and Communications Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Shi, Hongyu AU - Shi H AUID- ORCID: 0000-0002-0137-4421 AD - School of Information and Communications Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Wang, Chunhui AU - Wang C AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. FAU - Shao, Jinyou AU - Shao J AUID- ORCID: 0000-0001-8986-8495 AD - State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. AD - Frontier Institute of Science and Technology (FIST), Xi'an Jiaotong University, No.28, Xianning West Road, Xi'an, Shaanxi 710049, P.R. China. LA - eng PT - Journal Article DEP - 20220518 PL - United States TA - Sci Adv JT - Science advances JID - 101653440 SB - IM PMC - PMC9116885 EDAT- 2022/05/19 06:00 MHDA- 2022/05/19 06:01 PMCR- 2022/05/18 CRDT- 2022/05/18 14:11 PHST- 2022/05/18 14:11 [entrez] PHST- 2022/05/19 06:00 [pubmed] PHST- 2022/05/19 06:01 [medline] PHST- 2022/05/18 00:00 [pmc-release] AID - abn5722 [pii] AID - 10.1126/sciadv.abn5722 [doi] PST - ppublish SO - Sci Adv. 2022 May 20;8(20):eabn5722. doi: 10.1126/sciadv.abn5722. Epub 2022 May 18.