4.8 Article

M13 Virus Triboelectricity and Energy Harvesting

期刊

NANO LETTERS
卷 21, 期 16, 页码 6851-6858

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.1c01881

关键词

bioelectricity; triboelectricity; virus; energy harvesting; bionanotechnology

资金

  1. Tsinghua Berkeley Shenzhen Institute
  2. Samsung Display Inc. [63020]

向作者/读者索取更多资源

By genetically engineering charged structures of M13 bacteriophage, it was found that more negatively charged phages can generate higher triboelectric potentials and diffuse electric charges faster. Computational results showed that glutamate-engineered phages lower the LUMO energy level, enabling easier acceptance of electrons from other materials upon contact.
Triboelectrification is a phenomenon that generates electric potential upon contact. Here, we report a viral particle capable of generating triboelectric potential. M13 bacteriophage is exploited to fabricate precisely defined chemical and physical structures. By genetically engineering the charged structures, we observe that more negatively charged phages can generate higher triboelectric potentials and can diffuse the electric charges faster than less negatively charged phages can. The computational results show that the glutamate-engineered phages lower the LUMO energy level so that they can easily accept electrons from other materials upon contact. A phage-based triboelectric nanogenerator is fabricated and it could produce similar to 76 V and similar to 5.1 mu A, enough to power 30 light-emitting diodes upon a mechanical force application. Our biotechnological approach will be useful to understand the electrical behavior of biomaterials, harvest mechanical energy, and provide a novel modality to detect desired viruses in the future.

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