Esophagus-Inspired Actuator for Solid Transportation via the Synergy of Lubrication and Contractile Deformation | |
Hui Liu2; Yunlei Zhang2; Shuanhong Ma2; Yousif Alsaid1; Xiaowei Pei2; Meirong Cai2; Ximin He1; Feng Zhou2 | |
刊名 | Advance Science |
2021-10 | |
卷号 | XXX期号:XXX页码:XXX |
关键词 | tubular actuator, lubrication, temperature responsive, contractile deformation, objects migration |
DOI | 10.1002/advs.202102800 |
英文摘要 | Directional transportation of objects has important applications from energy transfer, intelligent robots to biomedical devices. Although breakthroughs in liquid migration on 2D surface or 3D tubular devices have been achieved, realizing smooth/on-demand transportation of constrained solids within 3D cavity environment under harsh pressurized environment still remains a daunting challenge, where strong interface friction force becomes the main obstacle restricting the movement of solids. Inspired by typical feeding mechanism in natural esophagus system which synergistically couples a lubricating mucosa surface with the peristaltic contraction deformation of cavity, herein we address this challenge by constructing an esophagus-inspired layered tubular actuator with slippery inner surface and responsive hydrogel matrix to realize spherical solid propulsion by photo(thermo)-induced cavity deformation. The as-constructed tubular actuator containing Fe3O4 nanoparticles exhibits local volumetric shrinkage upon NIR-irradiation, which can generate large hydrodynamic pressure and considerable mechanical extrusion force (Fdriving force~0.18 N) to overcome low interface friction force (ffriction force~0.03 N), enabling on-demand transportation of constrained (pressure: 0.103 MPa) spherical solids over a long distance along arbitrary direction. This actuator is anticipated to be used as bionic medicine transportation devices or artificial in vitro esophagus simulation systems, for example, to help formula eating-related physiotherapy plans for patients and astronauts. |
URL标识 | 查看原文 |
WOS记录号 | WOS:000711818100001 |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.cn/handle/362003/27748] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Shuanhong Ma; Ximin He; Feng Zhou |
作者单位 | 1.UCLA 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences |
推荐引用方式 GB/T 7714 | Hui Liu,Yunlei Zhang,Shuanhong Ma,et al. Esophagus-Inspired Actuator for Solid Transportation via the Synergy of Lubrication and Contractile Deformation[J]. Advance Science,2021,XXX(XXX):XXX. |
APA | Hui Liu.,Yunlei Zhang.,Shuanhong Ma.,Yousif Alsaid.,Xiaowei Pei.,...&Feng Zhou.(2021).Esophagus-Inspired Actuator for Solid Transportation via the Synergy of Lubrication and Contractile Deformation.Advance Science,XXX(XXX),XXX. |
MLA | Hui Liu,et al."Esophagus-Inspired Actuator for Solid Transportation via the Synergy of Lubrication and Contractile Deformation".Advance Science XXX.XXX(2021):XXX. |
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