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IPM
30
YEARS OLD

“School of Nano-Sciences”

Paper   IPM / Nano-Sciences / 12676
   School of Nano Science
  Title: Molecular dynamics study of the interfacial mechanical properties of the graphene-collagen biological nanocomposite
  Author(s):
1 . Sa'adollah Ebrahimi
2 . Abbas Montazeri
3 . Hashem Rafii-Tabar
  Status: Published
  Journal: Computational Material Science
  No.: March 2013
  Vol.: 69
  Year: 2013
  Pages: 11
  Publisher(s): 2012 Elsevier B.V.
  Supported by: IPM
  Abstract:
The reinforcement of biological polymers, such as collagen, with nanoscale fillers for use in tissue engineering and regenerative medicine is a promising research area that is just beginning to be explored. We study the mechanical properties of Type I collagen embedded with graphene nanoribbons (GNRs) as an important template employed in tissue repair. The graphene-collagen interfacial bonding properties play a significant role during load transfer in the nanocomposite and, hence, as the primary goal of this work, a set of pull-out studies, using molecular dynamics (MD) simulation, are performed to characterise the interfacial mechanical properties. The dependence of the pull-out force on the presence of ripples on the surface of the GNRs, arising due to thermal fluctuations, is also examined, as well as the influence of the pull-out velocity.

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