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
DOI10.1002/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.
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace