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Enhanced Skin Adhesive Patch with Modulus-Tunable Composite Micropillars

Authors

  • Won Gyu Bae,

    1. Interdisciplinary Program of Bioengineering, Seoul National University, Seoul 151-742, Korea
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  • Doogon Kim,

    1. Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea
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  • Moon Kyu Kwak,

    1. School of Mechanical Engineering, Kyungpook National University, Daegu 702-701, Korea
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  • Laura Ha,

    1. Interdisciplinary Program of Bioengineering, Seoul National University, Seoul 151-742, Korea
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  • Seong Min Kang,

    1. Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea
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  • Kahp Y. Suh

    Corresponding author
    1. Interdisciplinary Program of Bioengineering, Seoul National University, Seoul 151-742, Korea
    2. Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Korea
    3. Institute of Biological Engineering, Seoul National University, Seoul 151-742, Korea
    • Interdisciplinary Program of Bioengineering, Seoul National University, Seoul 151-742, Korea.
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Abstract

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Modulus-tunable composite micropillars are presented by combining replica molding and selective inking for skin adhesive patch in “ubiquitous”-health diagnostic devices. Inspired from hierarchical hairs in the gecko's toe pad, a simple method is presented to form composite polydimethylsiloxane (PDMS) micropillars that are highly adhesive (∼1.8 N cm−2) and mechanically robust (∼30 cycles).

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