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Title: Flexible magnetic composites for light-controlled actuation and interfaces

Abstract

The interaction between light and matter has been long explored, leading to insights based on the modulation and control of electrons and/or photons within a material. An opportunity exists in optomechanics, where the conversion of radiation into material strain and actuation is currently induced at the molecular level in liquid crystal systems, or at the microelectromechanical systems (MEMS) device scale, producing limited potential strain energy (or force) in light-driven systems. We present flexible material composites that, when illuminated, are capable of macroscale motion, through the interplay of optically absorptive elements and low Curie temperature magnetic materials. These composites can be formed into films, sponges, monoliths, and hydrogels, and can be actuated with light at desired locations. Finally, light-actuated elastomeric composites for gripping and releasing, heliotactic motion, light-driven propulsion, and rotation are demonstrated as examples of the versatility of this approach.

Authors:
 [1]; ORCiD logo [1];  [2];  [1];  [1];  [1];  [3];  [2];  [4]
  1. Tufts Univ., Medford, MA (United States). Silklab. Dept. of Biomedical Engineering
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Tufts Univ., Medford, MA (United States). Dept. of Biomedical Engineering
  4. Tufts Univ., Medford, MA (United States). Silklab. Dept. of Biomedical Engineering. Dept. of Electrical and Computer Engineering. Dept. of Physics
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Tufts Univ., Medford, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Office of Naval Research (ONR) (United States); National Science Foundation (NSF)
OSTI Identifier:
1475345
Report Number(s):
LA-UR-18-28365
Journal ID: ISSN 0027-8424
Grant/Contract Number:  
AC52-06NA25396; N00014-16-1-2437; DMR-1157490; 1541959
Resource Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 115; Journal Issue: 32; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; soft robotics; optomechanics; light actuation; silk; elastomers

Citation Formats

Li, Meng, Wang, Yu, Chen, Aiping, Naidu, Arin, Napier, Bradley S., Li, Wenyi, Rodriguez, Carlos Lopez, Crooker, Scott A., and Omenetto, Fiorenzo G. Flexible magnetic composites for light-controlled actuation and interfaces. United States: N. p., 2018. Web. doi:10.1073/pnas.1805832115.
Li, Meng, Wang, Yu, Chen, Aiping, Naidu, Arin, Napier, Bradley S., Li, Wenyi, Rodriguez, Carlos Lopez, Crooker, Scott A., & Omenetto, Fiorenzo G. Flexible magnetic composites for light-controlled actuation and interfaces. United States. doi:10.1073/pnas.1805832115.
Li, Meng, Wang, Yu, Chen, Aiping, Naidu, Arin, Napier, Bradley S., Li, Wenyi, Rodriguez, Carlos Lopez, Crooker, Scott A., and Omenetto, Fiorenzo G. Mon . "Flexible magnetic composites for light-controlled actuation and interfaces". United States. doi:10.1073/pnas.1805832115. https://www.osti.gov/servlets/purl/1475345.
@article{osti_1475345,
title = {Flexible magnetic composites for light-controlled actuation and interfaces},
author = {Li, Meng and Wang, Yu and Chen, Aiping and Naidu, Arin and Napier, Bradley S. and Li, Wenyi and Rodriguez, Carlos Lopez and Crooker, Scott A. and Omenetto, Fiorenzo G.},
abstractNote = {The interaction between light and matter has been long explored, leading to insights based on the modulation and control of electrons and/or photons within a material. An opportunity exists in optomechanics, where the conversion of radiation into material strain and actuation is currently induced at the molecular level in liquid crystal systems, or at the microelectromechanical systems (MEMS) device scale, producing limited potential strain energy (or force) in light-driven systems. We present flexible material composites that, when illuminated, are capable of macroscale motion, through the interplay of optically absorptive elements and low Curie temperature magnetic materials. These composites can be formed into films, sponges, monoliths, and hydrogels, and can be actuated with light at desired locations. Finally, light-actuated elastomeric composites for gripping and releasing, heliotactic motion, light-driven propulsion, and rotation are demonstrated as examples of the versatility of this approach.},
doi = {10.1073/pnas.1805832115},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 32,
volume = 115,
place = {United States},
year = {2018},
month = {7}
}

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    Works referencing / citing this record:

    Cutting the Cord: Progress in Untethered Soft Robotics and Actuators
    journal, January 2019

    • Li, Meng; Ostrovsky-Snider, Nicholas A.; Sitti, Metin
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