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Functional Janus structured liquids and aerogels

Author

Listed:
  • Ahmadreza Ghaffarkhah

    (University of British Columbia
    The University of British Columbia)

  • Seyyed Alireza Hashemi

    (University of British Columbia)

  • Farhad Ahmadijokani

    (University of British Columbia
    The University of British Columbia)

  • Milad Goodarzi

    (University of British Columbia)

  • Hossein Riazi

    (Drexel University)

  • Sameer E. Mhatre

    (The University of British Columbia)

  • Orysia Zaremba

    (Basque Center for Materials, Applications and Nanostructures (BCMaterials))

  • Orlando J. Rojas

    (The University of British Columbia)

  • Masoud Soroush

    (Drexel University)

  • Thomas P. Russell

    (University of Massachusetts Amherst
    Lawrence Berkeley National Laboratory
    Tohoku University)

  • Stefan Wuttke

    (Basque Center for Materials, Applications and Nanostructures (BCMaterials)
    IKERBASQUE, Basque Foundation for Science)

  • Milad Kamkar

    (University of Waterloo)

  • Mohammad Arjmand

    (University of British Columbia)

Abstract

Janus structures have unique properties due to their distinct functionalities on opposing faces, but have yet to be realized with flowing liquids. We demonstrate such Janus liquids with a customizable distribution of nanoparticles (NPs) throughout their structures by joining two aqueous streams of NP dispersions in an apolar liquid. Using this anisotropic integration platform, different magnetic, conductive, or non-responsive NPs can be spatially confined to opposite sides of the original interface using magnetic graphene oxide (mGO)/GO, Ti3C2Tx/GO, or GO suspensions. The resultant Janus liquids can be used as templates for versatile, responsive, and mechanically robust aerogels suitable for piezoresistive sensing, human motion monitoring, and electromagnetic interference (EMI) shielding with a tuned absorption mechanism. The EMI shields outperform their current counterparts in terms of wave absorption, i.e., SET ≈ 51 dB, SER ≈ 0.4 dB, and A = 0.91, due to their high porosity ranging from micro- to macro-scales along with non-interfering magnetic and conductive networks imparted by the Janus architecture.

Suggested Citation

  • Ahmadreza Ghaffarkhah & Seyyed Alireza Hashemi & Farhad Ahmadijokani & Milad Goodarzi & Hossein Riazi & Sameer E. Mhatre & Orysia Zaremba & Orlando J. Rojas & Masoud Soroush & Thomas P. Russell & Stef, 2023. "Functional Janus structured liquids and aerogels," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43319-7
    DOI: 10.1038/s41467-023-43319-7
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    References listed on IDEAS

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    1. Parisa Bazazi & Howard A. Stone & S. Hossein Hejazi, 2022. "Spongy all-in-liquid materials by in-situ formation of emulsions at oil-water interfaces," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
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