• 文献标题:   Fabrication of Coaxial Wet-Spun Graphene-Chitosan Biofibers
  • 文献类型:   Article
  • 作  者:   MIRABEDINI A, FOROUGHI J, THOMPSON B, WALLACE GG
  • 作者关键词:  
  • 出版物名称:   ADVANCED ENGINEERING MATERIALS
  • ISSN:   1438-1656 EI 1527-2648
  • 通讯作者地址:   Univ Wollongong
  • 被引频次:   13
  • DOI:   10.1002/adem.201500201
  • 出版年:   2016

▎ 摘  要

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 post-treatment 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 8500% and 3350%, respectively compared to the graphene oxide fibres alone.