TY - GEN
T1 - A composite spheres analysis of engineered cartilage mechanics
AU - Kohles, Sean S.
AU - Wilson, Christopher G.
AU - Bonassar, Lawrence J.
PY - 2005
Y1 - 2005
N2 - In the preparation of bioengineered reparative strategies for damaged or diseased tissues, the processes of biomaterial degeneration and neotissue synthesis combine to affect the developing mechanical state of multi-phase, composite engineered tissues. Here, cell-polymer constructs for engineered cartilage have been fabricated by seeding chondrocytes within three-dimensional scaffolds of biodegradable polymers. During culture, synthetic scaffolds degraded passively as the cells assembled an extracellular matrix (ECM) composed primarily of glycosaminoglycan (GAG) and collagen. During development, biochemical and biomechanical assessment of the composite (cells, ECM, and polymer scaffold) were modeled at a unit-cell level to predict their individual effect on the construct elastic properties (n = 4 samples per 7 time points). This approach employed a composite spheres, micromechanical analysis to determine bulk moduli of: 1) the cellular-ECM inclusion within the supporting scaffold structure; and 2) the cellular inclusion within its ECM. This analytical technique offers an interpretation of the constituent dynamics for cell-based tissue regeneration.
AB - In the preparation of bioengineered reparative strategies for damaged or diseased tissues, the processes of biomaterial degeneration and neotissue synthesis combine to affect the developing mechanical state of multi-phase, composite engineered tissues. Here, cell-polymer constructs for engineered cartilage have been fabricated by seeding chondrocytes within three-dimensional scaffolds of biodegradable polymers. During culture, synthetic scaffolds degraded passively as the cells assembled an extracellular matrix (ECM) composed primarily of glycosaminoglycan (GAG) and collagen. During development, biochemical and biomechanical assessment of the composite (cells, ECM, and polymer scaffold) were modeled at a unit-cell level to predict their individual effect on the construct elastic properties (n = 4 samples per 7 time points). This approach employed a composite spheres, micromechanical analysis to determine bulk moduli of: 1) the cellular-ECM inclusion within the supporting scaffold structure; and 2) the cellular inclusion within its ECM. This analytical technique offers an interpretation of the constituent dynamics for cell-based tissue regeneration.
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M3 - Conference contribution
AN - SCOPUS:32044468931
SN - 0912053909
SN - 9780912053905
T3 - Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
SP - 375
EP - 380
BT - Proceedings of the 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
T2 - 2005 SEM Annual Conference and Exposition on Experimental and Applied Mechanics
Y2 - 7 June 2005 through 9 June 2005
ER -