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  11. Fabrication Of Antibacterial And Ultraviolet Protective Wool Fabric Using Multi-walled Carbon Nanotubes Functionalized With Guanidinylated Hyperbranched Polyethyleneimine Derivative

Fabrication of Antibacterial and Ultraviolet Protective Wool Fabric Using Multi-Walled Carbon Nanotubes Functionalized with Guanidinylated Hyperbranched Polyethyleneimine Derivative

Nikolaos S Heliopoulos1,2, Kyriaki-Marina Lyra1, Aggeliki Papavasiliou1

  • 1Institute of Nanoscience and Nanotechnology, National Centre of Scientific Research "Demokritos", 15310 Aghia Paraskevi, Greece.

Materials (Basel, Switzerland)
|May 14, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Guanidinylated hyperbranched polyethyleneimine-functionalized carbon nanotubes create advanced wool textiles with lasting antibacterial and UV-blocking capabilities, overcoming previous dispersion challenges for broader industrial use.

Area of Science:

  • Materials Science
  • Textile Engineering
  • Nanotechnology

Background:

  • Carbon nanotubes (CNTs) offer unique properties for multifunctional textiles but suffer from poor dispersibility.
  • Developing stable CNT dispersions is crucial for industrial applications in advanced materials.

Purpose of the Study:

  • To develop and evaluate guanidinylated hyperbranched polyethyleneimine-functionalized oxidized carbon nanotubes (oxCNTs@GPEI) for wool fabric finishing.
  • To assess the antibacterial and UV-blocking performance of modified wool textiles.

Main Methods:

  • Synthesized two guanidinylated polyethyleneimine derivatives (GPEI5k and PEI 25K) functionalized oxCNTs.
  • Evaluated antibacterial activity against E. coli and S. aureus, and cytotoxicity.
  • Applied the most promising derivative (oxCNTs@GPEI5K) as a finishing agent on wool fabric.
Keywords:
UV blocking propertiesbactericidal propertiescarbon nanotubesguanidinium groups

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  • Assessed color, wash fastness, antibacterial, and UV-blocking properties of treated wool.

    • Main Results:

    • oxCNTs@GPEI5K demonstrated excellent aqueous compatibility and colloidal stability.
    • Modified wool fabrics showed uniform distribution and good adhesion of the functionalized CNTs.
    • The treated wool exhibited sustained antibacterial properties after multiple washes.
    • Enhanced UV-blocking performance was observed in the modified textiles.

    Conclusions:

    • Guanidinylated polyethyleneimine-functionalized CNTs are effective for creating multifunctional wool textiles.
    • The developed finishing agent provides durable antibacterial and UV-shielding properties to wool.
    • This approach holds significant potential for advanced antibacterial and UV-protective textile applications.
    hybrid textiles
    hyperbranched polymers
    wool