Multiresponsive polymeric microstructures with encoded predetermined and self-regulated deformability

Yuxing Yao, James T. Waters, Anna V. Shneidman, Jiaxi Cui, Xiaoguang Wang, Nikolaj Kofoed Mandsberg, Shucong Li, Anna C. Balazs, Joanna Aizenberg*

*Corresponding author for this work

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    Abstract

    Dynamic functions of biological organisms often rely on arrays of actively deformable microstructures undergoing a nearly unlimited repertoire of predetermined and self-regulated reconfigurations and motions, most of which are difficult or not yet possible to achieve in synthetic systems. Here, we introduce stimuli-responsive microstructures based on liquid-crystalline elastomers (LCEs) that display a broad range of hierarchical, even mechanically unfavored deformation behaviors. By polymerizing molded prepolymer in patterned magnetic fields, we encode any desired uniform mesogen orientation into the resulting LCE microstructures, which is then read out upon heating above the nematic–isotropic transition temperature (TN–I) as a specific prescribed deformation, such as twisting, in- and out-of-plane tilting, stretching, or contraction. By further introducing light-responsive moieties, we demonstrate unique multifunctionality of the LCEs capable of three actuation modes: self-regulated bending toward the light source at T < TN–I, magnetic-field–encoded predetermined deformation at T > TN–I, and direction-dependent self-regulated motion toward the light at T > TN–I. We develop approaches to create patterned arrays of microstructures with encoded multiple area-specific deformation modes and show their functions in responsive release of cargo, image concealment, and light-controlled reflectivity. We foresee that this platform can be widely applied in switchable adhesion, information encryption, autonomous antennae, energy harvesting, soft robotics, and smart buildings.
    Original languageEnglish
    JournalProceedings of the National Academy of Sciences
    Volume115
    Issue number51
    Pages (from-to)12950-12955
    ISSN0027-8424
    DOIs
    Publication statusPublished - 2018

    Cite this

    Yao, Yuxing ; Waters, James T. ; Shneidman, Anna V. ; Cui, Jiaxi ; Wang, Xiaoguang ; Mandsberg, Nikolaj Kofoed ; Li, Shucong ; Balazs, Anna C. ; Aizenberg, Joanna. / Multiresponsive polymeric microstructures with encoded predetermined and self-regulated deformability. In: Proceedings of the National Academy of Sciences. 2018 ; Vol. 115, No. 51. pp. 12950-12955.
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    title = "Multiresponsive polymeric microstructures with encoded predetermined and self-regulated deformability",
    abstract = "Dynamic functions of biological organisms often rely on arrays of actively deformable microstructures undergoing a nearly unlimited repertoire of predetermined and self-regulated reconfigurations and motions, most of which are difficult or not yet possible to achieve in synthetic systems. Here, we introduce stimuli-responsive microstructures based on liquid-crystalline elastomers (LCEs) that display a broad range of hierarchical, even mechanically unfavored deformation behaviors. By polymerizing molded prepolymer in patterned magnetic fields, we encode any desired uniform mesogen orientation into the resulting LCE microstructures, which is then read out upon heating above the nematic–isotropic transition temperature (TN–I) as a specific prescribed deformation, such as twisting, in- and out-of-plane tilting, stretching, or contraction. By further introducing light-responsive moieties, we demonstrate unique multifunctionality of the LCEs capable of three actuation modes: self-regulated bending toward the light source at T < TN–I, magnetic-field–encoded predetermined deformation at T > TN–I, and direction-dependent self-regulated motion toward the light at T > TN–I. We develop approaches to create patterned arrays of microstructures with encoded multiple area-specific deformation modes and show their functions in responsive release of cargo, image concealment, and light-controlled reflectivity. We foresee that this platform can be widely applied in switchable adhesion, information encryption, autonomous antennae, energy harvesting, soft robotics, and smart buildings.",
    author = "Yuxing Yao and Waters, {James T.} and Shneidman, {Anna V.} and Jiaxi Cui and Xiaoguang Wang and Mandsberg, {Nikolaj Kofoed} and Shucong Li and Balazs, {Anna C.} and Joanna Aizenberg",
    year = "2018",
    doi = "10.1073/pnas.1811823115",
    language = "English",
    volume = "115",
    pages = "12950--12955",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
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    Multiresponsive polymeric microstructures with encoded predetermined and self-regulated deformability. / Yao, Yuxing; Waters, James T.; Shneidman, Anna V.; Cui, Jiaxi; Wang, Xiaoguang; Mandsberg, Nikolaj Kofoed; Li, Shucong; Balazs, Anna C.; Aizenberg, Joanna.

    In: Proceedings of the National Academy of Sciences, Vol. 115, No. 51, 2018, p. 12950-12955.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Multiresponsive polymeric microstructures with encoded predetermined and self-regulated deformability

    AU - Yao, Yuxing

    AU - Waters, James T.

    AU - Shneidman, Anna V.

    AU - Cui, Jiaxi

    AU - Wang, Xiaoguang

    AU - Mandsberg, Nikolaj Kofoed

    AU - Li, Shucong

    AU - Balazs, Anna C.

    AU - Aizenberg, Joanna

    PY - 2018

    Y1 - 2018

    N2 - Dynamic functions of biological organisms often rely on arrays of actively deformable microstructures undergoing a nearly unlimited repertoire of predetermined and self-regulated reconfigurations and motions, most of which are difficult or not yet possible to achieve in synthetic systems. Here, we introduce stimuli-responsive microstructures based on liquid-crystalline elastomers (LCEs) that display a broad range of hierarchical, even mechanically unfavored deformation behaviors. By polymerizing molded prepolymer in patterned magnetic fields, we encode any desired uniform mesogen orientation into the resulting LCE microstructures, which is then read out upon heating above the nematic–isotropic transition temperature (TN–I) as a specific prescribed deformation, such as twisting, in- and out-of-plane tilting, stretching, or contraction. By further introducing light-responsive moieties, we demonstrate unique multifunctionality of the LCEs capable of three actuation modes: self-regulated bending toward the light source at T < TN–I, magnetic-field–encoded predetermined deformation at T > TN–I, and direction-dependent self-regulated motion toward the light at T > TN–I. We develop approaches to create patterned arrays of microstructures with encoded multiple area-specific deformation modes and show their functions in responsive release of cargo, image concealment, and light-controlled reflectivity. We foresee that this platform can be widely applied in switchable adhesion, information encryption, autonomous antennae, energy harvesting, soft robotics, and smart buildings.

    AB - Dynamic functions of biological organisms often rely on arrays of actively deformable microstructures undergoing a nearly unlimited repertoire of predetermined and self-regulated reconfigurations and motions, most of which are difficult or not yet possible to achieve in synthetic systems. Here, we introduce stimuli-responsive microstructures based on liquid-crystalline elastomers (LCEs) that display a broad range of hierarchical, even mechanically unfavored deformation behaviors. By polymerizing molded prepolymer in patterned magnetic fields, we encode any desired uniform mesogen orientation into the resulting LCE microstructures, which is then read out upon heating above the nematic–isotropic transition temperature (TN–I) as a specific prescribed deformation, such as twisting, in- and out-of-plane tilting, stretching, or contraction. By further introducing light-responsive moieties, we demonstrate unique multifunctionality of the LCEs capable of three actuation modes: self-regulated bending toward the light source at T < TN–I, magnetic-field–encoded predetermined deformation at T > TN–I, and direction-dependent self-regulated motion toward the light at T > TN–I. We develop approaches to create patterned arrays of microstructures with encoded multiple area-specific deformation modes and show their functions in responsive release of cargo, image concealment, and light-controlled reflectivity. We foresee that this platform can be widely applied in switchable adhesion, information encryption, autonomous antennae, energy harvesting, soft robotics, and smart buildings.

    U2 - 10.1073/pnas.1811823115

    DO - 10.1073/pnas.1811823115

    M3 - Journal article

    VL - 115

    SP - 12950

    EP - 12955

    JO - Proceedings of the National Academy of Sciences of the United States of America

    JF - Proceedings of the National Academy of Sciences of the United States of America

    SN - 0027-8424

    IS - 51

    ER -