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Advanced Materials

Buckling-Induced Reversible Symmetry Breaking and Amplification of Chirality Using Supported Cellular Structures

Authors

  • Sung Hoon Kang,

    1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
    Current affiliation:
    1. S.H.K., S.S., and W.L.N. contributed equally to this work.
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  • Sicong Shan,

    1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
    Current affiliation:
    1. S.H.K., S.S., and W.L.N. contributed equally to this work.
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  • Wim L. Noorduin,

    1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
    Current affiliation:
    1. S.H.K., S.S., and W.L.N. contributed equally to this work.
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  • Mughees Khan,

    1. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
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  • Joanna Aizenberg,

    Corresponding author
    1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
    2. Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA 02138, USA
    • School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
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  • Katia Bertoldi

    Corresponding author
    1. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
    2. Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA 02138, USA
    • School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
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Abstract

Buckling-induced reversible symmetry breaking and amplification of chirality using macro- and microscale supported cellular structures is described. Guided by extensive theoretical analysis, cellular structures are rationally designed, in which buckling induces a reversible switching between achiral and chiral configurations. Additionally, it is demonstrated that the proposed mechanism can be generalized over a wide range of length scales, geometries, materials, and stimuli.

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