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Paper   IPM / Nano-Sciences / 12676
School of Nano Science
  Title:   Molecular dynamics study of the interfacial mechanical properties of the graphene-collagen biological nanocomposite
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
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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