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Fabrication of coaxial wet-spun graphene-chitosan biofibers

Journal Article


Abstract


  • One-step continuous wet-spinning of coaxial electroactive fibres of chitosan/graphene oxide

    (Chit/GO) via a facile method is introduced for the first time, eliminating the need for posttreatment

    processes. Spinnability of coaxial fibres as well as their characterization for several

    properties is investigated. L-ascorbic acid was found to reduce graphene oxide under mild

    conditions to create conductivity in the final fibre. As-prepared fibres were found to be

    cytocompatible with good electrical conductivity and mechanical properties. SEM images from

    the cross-section of Chit/GO fibres showed an irregular shaped multifilament GO fibre covered

    with a cylinder-shaped sheath of chitosan. Coaxial fibres had an ultimate tensile stress and elastic

    modulus that increased 8 500% and 3 350%, respectively compared to the graphene oxide fibres

    alone.

Authors


  •   Mirabedini, Azadehsadat (external author)
  •   Foroughi, Javad (external author)
  •   Thompson, Brianna C. (external author)
  •   Wallace, Gordon G.

Publication Date


  • 2016

Citation


  • Mirabedini, A., Foroughi, J., Thompson, B. & Wallace, G. G. (2016). Fabrication of coaxial wet-spun graphene-chitosan biofibers. Advanced Engineering Materials, 18 (2), 284-293.

Scopus Eid


  • 2-s2.0-84958869471

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1774

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 284

End Page


  • 293

Volume


  • 18

Issue


  • 2

Abstract


  • One-step continuous wet-spinning of coaxial electroactive fibres of chitosan/graphene oxide

    (Chit/GO) via a facile method is introduced for the first time, eliminating the need for posttreatment

    processes. Spinnability of coaxial fibres as well as their characterization for several

    properties is investigated. L-ascorbic acid was found to reduce graphene oxide under mild

    conditions to create conductivity in the final fibre. As-prepared fibres were found to be

    cytocompatible with good electrical conductivity and mechanical properties. SEM images from

    the cross-section of Chit/GO fibres showed an irregular shaped multifilament GO fibre covered

    with a cylinder-shaped sheath of chitosan. Coaxial fibres had an ultimate tensile stress and elastic

    modulus that increased 8 500% and 3 350%, respectively compared to the graphene oxide fibres

    alone.

Authors


  •   Mirabedini, Azadehsadat (external author)
  •   Foroughi, Javad (external author)
  •   Thompson, Brianna C. (external author)
  •   Wallace, Gordon G.

Publication Date


  • 2016

Citation


  • Mirabedini, A., Foroughi, J., Thompson, B. & Wallace, G. G. (2016). Fabrication of coaxial wet-spun graphene-chitosan biofibers. Advanced Engineering Materials, 18 (2), 284-293.

Scopus Eid


  • 2-s2.0-84958869471

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1774

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 284

End Page


  • 293

Volume


  • 18

Issue


  • 2