Journal article
Conductive composite fibres from reduced graphene oxide and polypyrrole nanoparticles
KSU Schirmer, D Esrafilzadeh, BC Thompson, AF Quigley, RMI Kapsa, GG Wallace
Journal of Materials Chemistry B | Published : 2016
DOI: 10.1039/c5tb02130h
Abstract
Continuous composite fibres composed of polypyrrole (PPy) nanoparticles and reduced graphene oxide (rGO) at different mass ratios were fabricated using a single step wet-spinning approach. The electrical conductivity of the composite fibres increased significantly with the addition of rGO. The mechanical properties of the composite fibres also improved by the addition of rGO sheets compared to fibres containing only PPy. The ultimate tensile strength of the fibres increased with the proportion of rGO mass present. The elongation at break was greatest for the composite fibre containing equal mass ratios of PPy nanoparticles and rGO sheets. L929 fibroblasts seeded onto fibres showed no reducti..
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Funding Acknowledgements
The authors would like to thank the ARC Australian Laureate Fellowship scheme and the Australian Institute for Innovative Materials (AIIM) for funding, the Australian National Fabrication Facility (ANFF) for providing access to facilities, instruments and staff. The authors would also like to thank Dr Elise Stewart for assistance with cell toxicity analysis and Dr Rouhollah Jalili for synthesis of graphene oxide dispersion. The authors acknowledge the use of the facilities and the assistance of Mitchell Nancarrow at the UOW Electron Microscopy Centre.