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Fabrication and characterization of tough elastomeric fibrous scaffolds for tissue engineering applications

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2 Author(s)

Development of biodegradable tough elastomeric scaffolds are important for engineering tissues such as myocardium and heart valves that experience dynamic environments in vivo. Biomaterial scaffolds should ideally provide appropriate physical, chemical and mechanical cues to the seeded cells to closely mimic the native ECM. Collagen fibers form an important component of native myocardium as well as heart valve leaflets and provide necessary tensile properties to these tissues. Amongst various polymers, collagen mimicking biodegradable elastomer, Poly(glycerol-sebacate) (PGS) has shown great promise in microfabricated scaffolds for cardiac tissue engineering. However, its use is limited by its solubility and the ability to cast nano-/microfibrous structures. For its superior mechanical properties, thermal or UV crosslinking of the pre-polymer is required under high temperatures and vacuum limiting fabrication of fibers. In this work, we fabricated electrospun PGS fibers were fabricated by simply blending it with biodegradable polycaprolactone (PCL) polymer without any post-processing. It was hypothesized that microfibrous PGS-PCL scaffolds would provide appropriate physical (fibrous structure) and chemical (balanced hydrophilicity and hydrophobicity) to the cells in addition to the mechanical properties.

Published in:

Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Date of Conference:

Aug. 31 2010-Sept. 4 2010