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Self-assembly of diphenylalanine peptide with controlled polarization for power generation

Author

Listed:
  • Vu Nguyen

    (University of Minnesota)

  • Ren Zhu

    (University of Minnesota)

  • Kory Jenkins

    (University of Minnesota)

  • Rusen Yang

    (University of Minnesota)

Abstract

Peptides have attracted considerable attention due to their biocompatibility, functional molecular recognition and unique biological and electronic properties. The strong piezoelectricity in diphenylalanine peptide expands its technological potential as a smart material. However, its random and unswitchable polarization has been the roadblock to fulfilling its potential and hence the demonstration of a piezoelectric device remains lacking. Here we show the control of polarization with an electric field applied during the peptide self-assembly process. Uniform polarization is obtained in two opposite directions with an effective piezoelectric constant d33 reaching 17.9 pm V−1. We demonstrate the power generation with a peptide-based power generator that produces an open-circuit voltage of 1.4 V and a power density of 3.3 nW cm−2. Devices enabled by peptides with controlled piezoelectricity provide a renewable and biocompatible energy source for biomedical applications and open up a portal to the next generation of multi-functional electronics compatible with human tissue.

Suggested Citation

  • Vu Nguyen & Ren Zhu & Kory Jenkins & Rusen Yang, 2016. "Self-assembly of diphenylalanine peptide with controlled polarization for power generation," Nature Communications, Nature, vol. 7(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13566
    DOI: 10.1038/ncomms13566
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    Cited by:

    1. Zhuomin Zhang & Xuemu Li & Zehua Peng & Xiaodong Yan & Shiyuan Liu & Ying Hong & Yao Shan & Xiaote Xu & Lihan Jin & Bingren Liu & Xinyu Zhang & Yu Chai & Shujun Zhang & Alex K.-Y. Jen & Zhengbao Yang, 2023. "Active self-assembly of piezoelectric biomolecular films via synergistic nanoconfinement and in-situ poling," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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