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Updated: Aug 30, 2025

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Electroactive aniline tetramer-spider silks with conductive and electrochromic functionality.

Hung-Yu Wan1, Yi-Ting Chen1, Guan-Ting Li1

  • 1Department of Chemical Engineering, Chung-Yuan Christian University Taoyuan Taiwan taiyang@cycu.edu.tw +886 3 2654199 +886 3 2654149.

RSC Advances
|August 31, 2022
PubMed
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Researchers created conductive spider silk fibers by adding aniline tetramer. These electroactive composite fibers maintain spider silk

Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Textile Science

Background:

  • Spider silk is known for its exceptional mechanical strength and unique properties.
  • Developing advanced functional materials from natural biopolymers is an ongoing research area.
  • Electroactive materials are crucial for applications in electronics and sensors.

Purpose of the Study:

  • To develop electroactive composite fibers using spider silk and aniline tetramer.
  • To impart high electrical conductivity and electrochromic properties to spider silk.
  • To explore the potential of these composite fibers for electronic textiles (E-textiles).

Main Methods:

  • Dip coating method was employed to modify spider silk fibers with aniline tetramer.
  • Characterization of mechanical strength, conductivity, and electrochromic behavior.

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  • Testing the ability of composite fibers to conduct electricity and light LEDs.

    • Main Results:

    • Composite fibers exhibited high mechanical strength (0.92 GPa) and retained spider silk's relaxation-contraction behavior.
    • Aniline tetramer modification successfully imparted electroactive properties and conductivity (186 Ω m resistivity).
    • Color of the composite fibers was controllable via pH and voltage, enabling electrochromic functionality.

    Conclusions:

    • The developed aniline tetramer-spider silk composite fibers offer a promising platform for advanced functional textiles.
    • These fibers demonstrate high conductivity and electrochromic properties suitable for E-textiles.
    • The study provides a guideline for creating highly conductive, electrochromic spider silks.