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Advanced Materials

Permanent Polarity and Piezoelectricity of Electrospun α-Helical Poly(α-Amino Acid) Fibers

Authors

  • Dawnielle Farrar,

    1. Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
    2. Applied Physics Laboratory, The Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MD 20723, USA
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  • Kailiang Ren,

    1. Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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  • Derek Cheng,

    1. Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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  • Sungjoo Kim,

    1. Department of Mechanical Engineering, Pohang University of Science and Technology, San 31 Hyojadong Nam-ku, Pohang, Gyungbuk 790-784, Republic of Korea
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  • Wonkyu Moon,

    1. Department of Mechanical Engineering, Pohang University of Science and Technology, San 31 Hyojadong Nam-ku, Pohang, Gyungbuk 790-784, Republic of Korea
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  • William L. Wilson,

    1. Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
    2. Integrated Imaging Center, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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  • James E. West,

    1. Department of Electrical & Computer Engineering, Department of Mechanical Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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  • S. Michael Yu

    Corresponding author
    1. Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
    • Department of Materials Science & Engineering, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA.
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Abstract

Poly(γ-benzyl α, L-glutamate) fibers with high non-linear optical activity and thermally stable piezoelectricity are fabricated by simple electrospinning methods that apply directional shear force and electric field causing parallel alignment of helical polymer chains and permanent dipoles.

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