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Sadollah Ebrahimi

Sadollah Ebrahimi

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId: 16177495900
HIndex:
Faculty: Faculty of Science
Address: Department of Physics (Room 533)
Phone: 087-33664600 (4269)

Research

Title
Molecular dynamics study of the interfacial mechanical properties of the graphene–collagen biological nanocomposite
Type
JournalPaper
Keywords
Graphene, Collagen, MD simulation, Ripple, Pull-out force, Tissue engineering
Year
2013
Journal Computational Materials Science
DOI
Researchers Sadollah Ebrahimi ، Abbas Montazeri ، Hashem Rafii-Tabar

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.