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  11. Scalable Ultrastrong Mxene Films With Superior Osteogenesis

Scalable ultrastrong MXene films with superior osteogenesis

Sijie Wan1, Ying Chen2,3, Chaojie Huang1,4,5

  • 1School of Chemistry, Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, People's Republic of China.

Nature
|October 31, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

We developed a scalable method to create high-performance titanium carbide MXene films. These films show excellent mechanical strength, electrical conductivity, and potential for flexible electronics and bone regeneration.

Area of Science:

  • Materials Science
  • Nanotechnology

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  • Biomedical Engineering

    • Background:

    • Titanium carbide MXene flakes offer potential in aerospace, electronics, and biomedicine due to their properties.
    • Scalable fabrication of high-performance macroscopic MXene materials remains a significant challenge.

    Purpose of the Study:

    • To develop a scalable strategy for fabricating high-performance MXene films.
    • To enhance the properties of MXene films for applications in flexible electronics and bone tissue engineering.

    Main Methods:

    • Utilized roll-to-roll-assisted blade coating (RBC) integrated with sequential bridging.
    • Employed hydrogen bonding with silk sericin followed by ionic bridging to create aligned and densified MXene films.

    Main Results:

    • Achieved large-scale MXene films with high tensile strength (755 MPa) and toughness (17.4 MJ m⁻³).
    • Demonstrated excellent electromagnetic interference (EMI) shielding (78,000 dB cm² g⁻¹), photothermal conversion, and bone regeneration capabilities.
    • Films exhibited strong interlayer interactions, high alignment, and good ambient stability.

    Conclusions:

    • The developed RBC strategy enables scalable fabrication of high-performance MXene films.
    • These films are suitable for flexible EMI shielding and bone tissue engineering applications.
    • The method provides a pathway for scalable assembly of other 2D flakes.