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Closed-loop bio-recyclable dielectric films for sustainable electronics

Author

Listed:
  • Yu-Xiang Zhao

    (University of Science and Technology of China)

  • Zi-Meng Han

    (University of Science and Technology of China)

  • Song Ding

    (University of Science and Technology of China)

  • Huai-Bin Yang

    (University of Science and Technology of China)

  • Hao-Cheng Liu

    (University of Science and Technology of China)

  • Wen-Bin Sun

    (University of Science and Technology of China)

  • De-Han Li

    (University of Science and Technology of China)

  • Kun-Peng Yang

    (University of Science and Technology of China)

  • Xiao-Guang Li

    (University of Science and Technology of China)

  • Qing-Fang Guan

    (University of Science and Technology of China)

  • Shu-Hong Yu

    (University of Science and Technology of China
    Southern University of Science and Technology)

Abstract

The rapid accumulation of electronic waste due to high consumption of electronics is a growing global concern. The development of sustainable electronics with both recyclability and desired properties is urgent to tackle this problem. However, existing open-loop recycling and closed-loop chemical recycling approaches suffer from either compromised performance of recycled materials or harsh recycling conditions. Here we develop a closed-loop bio-recyclable cellulose-based dielectric film for sustainable electronics. We combine a biomanufacturing strategy—aerosol-assisted biosynthesis—with specific enzymatic degradation to obtain closed-loop biological recyclability. The spontaneous behaviours of bacteria in aerosol-assisted biosynthesis and the artificial sandwich structural design synergistically impart the dielectric film with high tensile strength, a low dielectric constant and a low thermal expansion coefficient, enhancing its applicability. This work offers a viable approach to improve the circularity of electronics, paving the way to a more sustainable electronics industry.

Suggested Citation

  • Yu-Xiang Zhao & Zi-Meng Han & Song Ding & Huai-Bin Yang & Hao-Cheng Liu & Wen-Bin Sun & De-Han Li & Kun-Peng Yang & Xiao-Guang Li & Qing-Fang Guan & Shu-Hong Yu, 2025. "Closed-loop bio-recyclable dielectric films for sustainable electronics," Nature Sustainability, Nature, vol. 8(9), pages 1077-1086, September.
    • Handle: RePEc:nat:natsus:v:8:y:2025:i:9:d:10.1038_s41893-025-01606-9
    DOI: 10.1038/s41893-025-01606-9
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