Journal of Artificial Organs

, Volume 17, Issue 4, pp 329–336 | Cite as

Applying shear stress to endothelial cells in a new perfusion chamber: hydrodynamic analysis

  • Fatemeh Anisi
  • Nasim Salehi-Nik
  • Ghassem Amoabediny
  • Behdad Pouran
  • Nooshin Haghighipour
  • Behrouz Zandieh-Doulabi
Original Article Tissue Engineering / Regenerative Medicine

Abstract

Perfusion bioreactors have been proved to be an impartible part of vascular tissue engineering due to its broad range of applications as a means to distribute nutrients within porous scaffold along with providing appropriate physical and mechanical stimuli. To better understand the mechanical phenomena inside a bioreactor, computational fluid dynamics (CFD) was adopted followed by a validation technique. The fluid dynamics of the media inside the bioreactor was modeled using the Navier–Stokes equation for incompressible fluids while convection through the scaffold was described by Brinkman’s extension of Darcy’s law for porous media. Flow within the reactor determined the orientation of endothelial cells on the scaffold. To validate flow patterns, streamlines and shear stresses, colorimetry technique was used following attained results from CFD. Our bioreactor was modeled to simulate the optimum condition and flow patterns over scaffold to culture ECs for in vitro experimentation. In such experiments, cells were attached firmly without significant detachment and more noticeably elongation process was triggered even shortly after start up.

Keywords

Computational fluid dynamics (CFD) Perfusion bioreactor Shear stress Colorimetry Endothelial cells (ECs) 

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Copyright information

© The Japanese Society for Artificial Organs 2014

Authors and Affiliations

  • Fatemeh Anisi
    • 1
    • 2
    • 5
  • Nasim Salehi-Nik
    • 1
    • 2
  • Ghassem Amoabediny
    • 1
    • 2
  • Behdad Pouran
    • 1
    • 2
    • 6
  • Nooshin Haghighipour
    • 3
  • Behrouz Zandieh-Doulabi
    • 4
  1. 1.Department of Chemical Engineering, Faculty of EngineeringUniversity of TehranTehranIran
  2. 2.Department of Biomedical Engineering, Research Center for New Technologies in Life Science EngineeringUniversity of TehranTehranIran
  3. 3.National Cell BankPasteur Institute of IranTehranIran
  4. 4.Department of Oral Cell BiologyAcademic Centre for Dentistry Amsterdam-Universiteit van Amsterdam and Vrije UniversiteitAmsterdamThe Netherlands
  5. 5.Department of Process and Energy, Faculty of 3MEDelft University of TechnologyDelftThe Netherlands
  6. 6.Department of OrthopaedicsUMC UtrechtUtrechtThe Netherlands

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