CUED Publications database

Spider silk reinforced by graphene or carbon nanotubes

Lepore, E and Bosia, F and Bonaccorso, F and Bruna, M and Taioli, S and Garberoglio, G and Ferrari, AC and Pugno, NM (2017) Spider silk reinforced by graphene or carbon nanotubes. 2D Materials, 4. ISSN 2053-1583

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Abstract

© 2017 IOP Publishing Ltd. Spider silk has promising mechanical properties, since it conjugates high strength (~1.5 GPa) and toughness (~150 J g −1 ). Here, we report the production of silk incorporating graphene and carbon nanotubes by spider spinning, after feeding spiders with the corresponding aqueous dispersions. We observe an increment of the mechanical properties with respect to pristine silk, up to a fracture strength ~5.4 GPa and a toughness modulus ~1570 J g −1 . This approach could be extended to other biological systems and lead to a new class of artificially modified biological, or ‘bionic’, materials.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 05 Sep 2017 01:40
Last Modified: 16 Nov 2017 02:24
DOI: