, Volume 62, Issue 7, pp 71–75 | Cite as

Directionally solidified biopolymer scaffolds: Mechanical properties and endothelial cell responses

  • Nicholas W. Meghri
  • Amalie E. Donius
  • Benjamin W. Riblett
  • Elizabeth J. Martin
  • Alisa Morss Clyne
  • Ulrike G. K. Wegst
Biological and Biomedical Materials / Research Summary


Vascularization is a primary challenge in tissue engineering. To achieve it in a tissue scaffold, an environment with the appropriate structural, mechanical, and biochemical cues must be provided enabling endothelial cells to direct blood vessel growth. While biochemical stimuli such as growth factors can be added through the scaffold material, the culture medium, or both, a well-designed tissue engineering scaffold is required to provide the necessary local structural and mechanical cues. As chitosan is a well-known carrier for biochemical stimuli, the focus of this study was on structure-property correlations, to evaluate the effects of composition and processing conditions on the three-dimensional architecture and properties of freeze-cast scaffolds; to establish whether freeze-east scaffolds are promising candidates as constructs promoting vascularization; and to conduct initial tissue culture studies with endothelial cells on flat substrates of identical compositions as those of the scaffolds to test whether these are biocompatible and promote cell attachment and proliferation.


Chitosan Tissue Engineering Vessel Growth Scaffold Material Tissue Engineering Scaffold 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© TMS 2010

Authors and Affiliations

  • Nicholas W. Meghri
    • 1
  • Amalie E. Donius
    • 1
  • Benjamin W. Riblett
    • 1
  • Elizabeth J. Martin
    • 2
  • Alisa Morss Clyne
    • 3
  • Ulrike G. K. Wegst
    • 1
  1. 1.Department of Materials Science and EngineeringDrexel UniversityPhiladelphiaUSA
  2. 2.Department of Materials Science and EngineeringThe Ohio State UniversityColumbusUSA
  3. 3.Department of Mechanical Engineering of Drexel UniversityPhiladelphiaUSA

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