Sheath-run artificial muscles

Jiuke Mu; Mônica Jung De Andrade; Shaoli Fang; Xuemin Wang; Enlai Gao; Na Li; Shi Hyeong Kim; Hongzhi Wang; Chengyi Hou; Qinghong Zhang; Meifang Zhu; Dong Qian; Hongbing Lu; Dharshika Kongahage; Sepehr Talebian; Javad Foroughi; Geoffrey Spinks; Hyun Kim; Taylor H. Ware; Hyeon Jun Sim; Dong Yeop Lee; Yongwoo Jang; Seon Jeong Kim; Ray H. Baughman

doi:10.1126/science.aaw2403

Sheath-run artificial muscles

Jiuke Mu, Mônica Jung De Andrade, Shaoli Fang, Xuemin Wang, Enlai Gao, Na Li, Shi Hyeong Kim, Hongzhi Wang, Chengyi Hou, Qinghong Zhang, Meifang Zhu, Dong Qian, Hongbing Lu, Dharshika Kongahage, Sepehr Talebian, Javad Foroughi, Geoffrey Spinks, Hyun Kim, Taylor H. Ware, Hyeon Jun SimDong Yeop Lee, Yongwoo Jang, Seon Jeong Kim, Ray H. Baughman

Department of Energy and Materials Engineering

Research output: Contribution to journal › Article › peer-review

270 Scopus citations

Abstract

Although guest-filled carbon nanotube yarns provide record performance as torsional and tensile artificial muscles, they are expensive, and only part of the muscle effectively contributes to actuation. We describe a muscle type that provides higher performance, in which the guest that drives actuation is a sheath on a twisted or coiled core that can be an inexpensive yarn. This change from guest-filled to sheath-run artificial muscles increases the maximum work capacity by factors of 1.70 to 2.15 for tensile muscles driven electrothermally or by vapor absorption. A sheath-run electrochemical muscle generates 1.98 watts per gram of average contractile power—40 times that for human muscle and 9.0 times that of the highest power alternative electrochemical muscle. Theory predicts the observed performance advantages of sheath-run muscles.

Original language	English
Pages (from-to)	150-155
Number of pages	6
Journal	Science
Volume	365
Issue number	6449
DOIs	https://doi.org/10.1126/science.aaw2403
State	Published - 2019

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title = "Sheath-run artificial muscles",

abstract = "Although guest-filled carbon nanotube yarns provide record performance as torsional and tensile artificial muscles, they are expensive, and only part of the muscle effectively contributes to actuation. We describe a muscle type that provides higher performance, in which the guest that drives actuation is a sheath on a twisted or coiled core that can be an inexpensive yarn. This change from guest-filled to sheath-run artificial muscles increases the maximum work capacity by factors of 1.70 to 2.15 for tensile muscles driven electrothermally or by vapor absorption. A sheath-run electrochemical muscle generates 1.98 watts per gram of average contractile power—40 times that for human muscle and 9.0 times that of the highest power alternative electrochemical muscle. Theory predicts the observed performance advantages of sheath-run muscles.",

author = "Jiuke Mu and {De Andrade}, {M{\^o}nica Jung} and Shaoli Fang and Xuemin Wang and Enlai Gao and Na Li and Kim, {Shi Hyeong} and Hongzhi Wang and Chengyi Hou and Qinghong Zhang and Meifang Zhu and Dong Qian and Hongbing Lu and Dharshika Kongahage and Sepehr Talebian and Javad Foroughi and Geoffrey Spinks and Hyun Kim and Ware, {Taylor H.} and Sim, {Hyeon Jun} and Lee, {Dong Yeop} and Yongwoo Jang and Kim, {Seon Jeong} and Baughman, {Ray H.}",

year = "2019",

doi = "10.1126/science.aaw2403",

language = "English",

volume = "365",

pages = "150--155",

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T1 - Sheath-run artificial muscles

AU - Mu, Jiuke

AU - De Andrade, Mônica Jung

AU - Fang, Shaoli

AU - Wang, Xuemin

AU - Gao, Enlai

AU - Li, Na

AU - Kim, Shi Hyeong

AU - Wang, Hongzhi

AU - Hou, Chengyi

AU - Zhang, Qinghong

AU - Zhu, Meifang

AU - Qian, Dong

AU - Lu, Hongbing

AU - Kongahage, Dharshika

AU - Talebian, Sepehr

AU - Foroughi, Javad

AU - Spinks, Geoffrey

AU - Kim, Hyun

AU - Ware, Taylor H.

AU - Sim, Hyeon Jun

AU - Lee, Dong Yeop

AU - Jang, Yongwoo

AU - Kim, Seon Jeong

AU - Baughman, Ray H.

PY - 2019

Y1 - 2019

N2 - Although guest-filled carbon nanotube yarns provide record performance as torsional and tensile artificial muscles, they are expensive, and only part of the muscle effectively contributes to actuation. We describe a muscle type that provides higher performance, in which the guest that drives actuation is a sheath on a twisted or coiled core that can be an inexpensive yarn. This change from guest-filled to sheath-run artificial muscles increases the maximum work capacity by factors of 1.70 to 2.15 for tensile muscles driven electrothermally or by vapor absorption. A sheath-run electrochemical muscle generates 1.98 watts per gram of average contractile power—40 times that for human muscle and 9.0 times that of the highest power alternative electrochemical muscle. Theory predicts the observed performance advantages of sheath-run muscles.

AB - Although guest-filled carbon nanotube yarns provide record performance as torsional and tensile artificial muscles, they are expensive, and only part of the muscle effectively contributes to actuation. We describe a muscle type that provides higher performance, in which the guest that drives actuation is a sheath on a twisted or coiled core that can be an inexpensive yarn. This change from guest-filled to sheath-run artificial muscles increases the maximum work capacity by factors of 1.70 to 2.15 for tensile muscles driven electrothermally or by vapor absorption. A sheath-run electrochemical muscle generates 1.98 watts per gram of average contractile power—40 times that for human muscle and 9.0 times that of the highest power alternative electrochemical muscle. Theory predicts the observed performance advantages of sheath-run muscles.

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U2 - 10.1126/science.aaw2403

DO - 10.1126/science.aaw2403

M3 - Article

C2 - 31296765

AN - SCOPUS:85068995074

SN - 0036-8075

VL - 365

SP - 150

EP - 155

JO - Science

JF - Science

IS - 6449

ER -

Sheath-run artificial muscles

Abstract

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