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Title: Electrospun composite scaffolds containing poly(octanediol-co-citrate) for cardiac tissue engineering
Authors: Prabhakaran, M.P. 
Nair, A.S. 
Kai, D.
Ramakrishna, S. 
Keywords: cardiac
tensile strength
Issue Date: Jul-2012
Source: Prabhakaran, M.P., Nair, A.S., Kai, D., Ramakrishna, S. (2012-07). Electrospun composite scaffolds containing poly(octanediol-co-citrate) for cardiac tissue engineering. Biopolymers 97 (7) : 529-538. ScholarBank@NUS Repository.
Abstract: A biocompatible and elastomeric nanofibrous scaffold is electrospun from a blend of poly(1,8-octanediol-co-citrate) [POC] and poly(L-lactic acid) -co-poly-(3-caprolactone) [PLCL] for application as a bioengineered patch for cardiac tissue engineering. The characterization of the scaffolds was carried out by Fourier transform infra red spectroscopy, scanning electron microscopy (SEM), and tensile measurement. The mechanical properties of the scaffolds are studied with regard to the percentage of POC incorporated with PLCL and the results of the study showed that the mechanical property and degradation behavior of the composites can be tuned with respect to the concentration of POC blended with PLCL. The composite scaffolds with POC: PLCL weight ratio of 40:60 [POC/PLCL4060] was found to have a tensile strength of 1.04 ± 0.11 MPa and Young's Modulus of 0.51 ± 0.10 MPa, comparable to the native cardiac tissue. The proliferation of cardiac myoblast cells on the electrospun POC/PLCL scaffolds was found to increase from Days 2 to 8, with the increasing concentration of POC in the composite. The morphology and cytoskeletal observation of the cells also demonstrated the biocompatibility of the POC containing scaffolds. Electrospun POC/PLCL4060 nanofibers are promising elastomeric substrates that might provide the necessary mechanical cues to cardiac muscle cells for regeneration of the heart. © 2012 Wiley Periodicals, Inc.
Source Title: Biopolymers
ISSN: 00063525
DOI: 10.1002/bip.22035
Appears in Collections:Staff Publications

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