Flexible magnetic composites for light-controlled actuation and interfaces

doi:10.1073/pnas.1805832115

This content will become publicly available on July 23, 2019

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

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:

Li, Meng ^[1] ; ; Chen, Aiping ^[2] ; Naidu, Arin ^[1] ; Napier, Bradley S. ^[1] ; Li, Wenyi ^[1] ; Rodriguez, Carlos Lopez ^[3] ; Crooker, Scott A. ^[2] ; Omenetto, Fiorenzo G. ^[4]

Tufts Univ., Medford, MA (United States). Silklab. Dept. of Biomedical Engineering
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Tufts Univ., Medford, MA (United States). Dept. of Biomedical Engineering
Tufts Univ., Medford, MA (United States). Silklab. Dept. of Biomedical Engineering. Dept. of Electrical and Computer Engineering. Dept. of Physics

Publication Date:: 2018-07-23

Report Number(s):: LA-UR-18-28365
Journal ID: ISSN 0027-8424

Grant/Contract Number:: AC52-06NA25396; N00014-16-1-2437; DMR-1157490; 1541959

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)

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)

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; soft robotics; optomechanics; light actuation; silk; elastomers

OSTI Identifier:: 1475345


                    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.,  
        Web.  doi:10.1073/pnas.1805832115.

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                    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.

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                    Li, Meng, Wang, Yu, Chen, Aiping, Naidu, Arin, Napier, Bradley S., Li, Wenyi, Rodriguez, Carlos Lopez, Crooker, Scott A., and Omenetto, Fiorenzo G.. 2018.  
        "Flexible magnetic composites for light-controlled actuation and interfaces".  United States.  
        doi:10.1073/pnas.1805832115.

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@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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Free Publicly Accessible Full Text
This content will become publicly available on July 23, 2019
Publisher's Version of Record
10.1073/pnas.1805832115
https://doi.org/10.1073/pnas.1805832115

Works referenced in this record:

A new route for silk
journal, November 2008

Omenetto, Fiorenzo G.; Kaplan, David L.
Nature Photonics, Vol. 2, Issue 11, p. 641-643
DOI: 10.1038/nphoton.2008.207

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

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