Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators

Stacey M. Chin, Christopher V. Synatschke, Shuangping Liu, Rikkert J. Nap, Nicholas A. Sather, Qifeng Wang, Zaida Álvarez, Alexandra N. Edelbrock, Timmy Fyrner, Liam C. Palmer, Igal Szleifer, Monica Olvera De La Cruz, Samuel I Stupp

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Skeletal muscle provides inspiration on how to achieve reversible, macroscopic, anisotropic motion in soft materials. Here we report on the bottom-up design of macroscopic tubes that exhibit anisotropic actuation driven by a thermal stimulus. The tube is built from a hydrogel in which extremely long supramolecular nanofibers are aligned using weak shear forces, followed by radial growth of thermoresponsive polymers from their surfaces. The hierarchically ordered tube exhibits reversible anisotropic actuation with changes in temperature, with much greater contraction perpendicular to the direction of nanofiber alignment. We identify two critical factors for the anisotropic actuation, macroscopic alignment of the supramolecular scaffold and its covalent bonding to polymer chains. Using finite element analysis and molecular calculations, we conclude polymer chain confinement and mechanical reinforcement by rigid supramolecular nanofibers are responsible for the anisotropic actuation. The work reported suggests strategies to create soft active matter with molecularly encoded capacity to perform complex tasks.

Original languageEnglish
Article number2395
JournalNature Communications
Volume9
Issue number1
DOIs
Publication statusPublished - Dec 1 2018

Fingerprint

Nanofibers
muscles
actuation
Muscle
Polymers
Actuators
actuators
Muscles
polymers
tubes
Finite Element Analysis
Hydrogel
alignment
inspiration
Scaffolds
skeletal muscle
Reinforcement
Skeletal Muscle
Hot Temperature
reinforcement

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators. / Chin, Stacey M.; Synatschke, Christopher V.; Liu, Shuangping; Nap, Rikkert J.; Sather, Nicholas A.; Wang, Qifeng; Álvarez, Zaida; Edelbrock, Alexandra N.; Fyrner, Timmy; Palmer, Liam C.; Szleifer, Igal; Olvera De La Cruz, Monica; Stupp, Samuel I.

In: Nature Communications, Vol. 9, No. 1, 2395, 01.12.2018.

Research output: Contribution to journalArticle

Chin, SM, Synatschke, CV, Liu, S, Nap, RJ, Sather, NA, Wang, Q, Álvarez, Z, Edelbrock, AN, Fyrner, T, Palmer, LC, Szleifer, I, Olvera De La Cruz, M & Stupp, SI 2018, 'Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators', Nature Communications, vol. 9, no. 1, 2395. https://doi.org/10.1038/s41467-018-04800-w
Chin, Stacey M. ; Synatschke, Christopher V. ; Liu, Shuangping ; Nap, Rikkert J. ; Sather, Nicholas A. ; Wang, Qifeng ; Álvarez, Zaida ; Edelbrock, Alexandra N. ; Fyrner, Timmy ; Palmer, Liam C. ; Szleifer, Igal ; Olvera De La Cruz, Monica ; Stupp, Samuel I. / Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators. In: Nature Communications. 2018 ; Vol. 9, No. 1.
@article{25cb5b47a7d5472aa045b951fb3b249b,
title = "Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators",
abstract = "Skeletal muscle provides inspiration on how to achieve reversible, macroscopic, anisotropic motion in soft materials. Here we report on the bottom-up design of macroscopic tubes that exhibit anisotropic actuation driven by a thermal stimulus. The tube is built from a hydrogel in which extremely long supramolecular nanofibers are aligned using weak shear forces, followed by radial growth of thermoresponsive polymers from their surfaces. The hierarchically ordered tube exhibits reversible anisotropic actuation with changes in temperature, with much greater contraction perpendicular to the direction of nanofiber alignment. We identify two critical factors for the anisotropic actuation, macroscopic alignment of the supramolecular scaffold and its covalent bonding to polymer chains. Using finite element analysis and molecular calculations, we conclude polymer chain confinement and mechanical reinforcement by rigid supramolecular nanofibers are responsible for the anisotropic actuation. The work reported suggests strategies to create soft active matter with molecularly encoded capacity to perform complex tasks.",
author = "Chin, {Stacey M.} and Synatschke, {Christopher V.} and Shuangping Liu and Nap, {Rikkert J.} and Sather, {Nicholas A.} and Qifeng Wang and Zaida {\'A}lvarez and Edelbrock, {Alexandra N.} and Timmy Fyrner and Palmer, {Liam C.} and Igal Szleifer and {Olvera De La Cruz}, Monica and Stupp, {Samuel I}",
year = "2018",
month = "12",
day = "1",
doi = "10.1038/s41467-018-04800-w",
language = "English",
volume = "9",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - Covalent-supramolecular hybrid polymers as muscle-inspired anisotropic actuators

AU - Chin, Stacey M.

AU - Synatschke, Christopher V.

AU - Liu, Shuangping

AU - Nap, Rikkert J.

AU - Sather, Nicholas A.

AU - Wang, Qifeng

AU - Álvarez, Zaida

AU - Edelbrock, Alexandra N.

AU - Fyrner, Timmy

AU - Palmer, Liam C.

AU - Szleifer, Igal

AU - Olvera De La Cruz, Monica

AU - Stupp, Samuel I

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Skeletal muscle provides inspiration on how to achieve reversible, macroscopic, anisotropic motion in soft materials. Here we report on the bottom-up design of macroscopic tubes that exhibit anisotropic actuation driven by a thermal stimulus. The tube is built from a hydrogel in which extremely long supramolecular nanofibers are aligned using weak shear forces, followed by radial growth of thermoresponsive polymers from their surfaces. The hierarchically ordered tube exhibits reversible anisotropic actuation with changes in temperature, with much greater contraction perpendicular to the direction of nanofiber alignment. We identify two critical factors for the anisotropic actuation, macroscopic alignment of the supramolecular scaffold and its covalent bonding to polymer chains. Using finite element analysis and molecular calculations, we conclude polymer chain confinement and mechanical reinforcement by rigid supramolecular nanofibers are responsible for the anisotropic actuation. The work reported suggests strategies to create soft active matter with molecularly encoded capacity to perform complex tasks.

AB - Skeletal muscle provides inspiration on how to achieve reversible, macroscopic, anisotropic motion in soft materials. Here we report on the bottom-up design of macroscopic tubes that exhibit anisotropic actuation driven by a thermal stimulus. The tube is built from a hydrogel in which extremely long supramolecular nanofibers are aligned using weak shear forces, followed by radial growth of thermoresponsive polymers from their surfaces. The hierarchically ordered tube exhibits reversible anisotropic actuation with changes in temperature, with much greater contraction perpendicular to the direction of nanofiber alignment. We identify two critical factors for the anisotropic actuation, macroscopic alignment of the supramolecular scaffold and its covalent bonding to polymer chains. Using finite element analysis and molecular calculations, we conclude polymer chain confinement and mechanical reinforcement by rigid supramolecular nanofibers are responsible for the anisotropic actuation. The work reported suggests strategies to create soft active matter with molecularly encoded capacity to perform complex tasks.

UR - http://www.scopus.com/inward/record.url?scp=85048783074&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048783074&partnerID=8YFLogxK

U2 - 10.1038/s41467-018-04800-w

DO - 10.1038/s41467-018-04800-w

M3 - Article

C2 - 29921928

AN - SCOPUS:85048783074

VL - 9

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 2395

ER -