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Patterning Thin Film Mechanical Properties to Drive Assembly of Complex 3D Structures

Authors

  • Noy Bassik,

    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
    2. School of Medicine Johns Hopkins University Baltimore, MD 21205 (USA)
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  • George M. Stern,

    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
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  • Mustapha Jamal,

    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
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  • David H. Gracias

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA)
    2. Department of Chemistry Johns Hopkins University Baltimore, MD 21218 (USA)
    • Department of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore, MD 21218 (USA).
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  • The authors wish to thank R. C. Cammarata, T. G. Leong, and C. L. Randall for valuable discussions. This material is based in part upon work supported by the National Science Foundation under grant number CMMI-0448816 and DGE-0549350; and from the Beckman Foundation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the funding agencies. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

Thin films of metal and polymer are patterned with varying geometry, moduli, and initial stresses to fold into complex 3D structures. In the schematic (top) the rigid segments, flexible hinges, and hollow areas are visible. In the optical and fluorescent micrograph below, cells were cultured on the self-assembled structures, and fluoresce green as they are alive.

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