Document Detail


Carbon Nanotube-Poly(lactide-co-glycolide) Composite Scaffolds for Bone Tissue Engineering Applications.
MedLine Citation:
PMID:  23283475     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Despite their indisputable clinical value, current tissue engineering strategies face major challenges in recapitulating the natural nano-structural and morphological features of native bone. The aim of this study is to take a step forward by developing a porous scaffold with appropriate mechanical strength and controllable surface roughness for bone repair. This was accomplished by homogenous dispersion of carbon nanotubes (CNTs) in a poly(lactide-co-glycolide) (PLGA) solution followed by a solvent casting/particulate leaching scaffold fabrication. Our results demonstrated that CNT/PLGA composite scaffolds possessed a significantly higher mechanical strength as compared to PLGA scaffolds. The incorporation of CNTs led to an enhanced surface roughness and resulted in an increase in the attachment and proliferation of MC3T3-E1 osteoblasts. Most interestingly, the in vitro osteogenesis studies demonstrated a significantly higher rate of differentiation on CNT/PLGA scaffolds compared to the control PLGA group. These results all together demonstrate the potential of CNT/PLGA scaffolds for bone tissue engineering as they possess the combined effects of mechanical strength and osteogenicity.
Authors:
Qingsu Cheng; Katy Rutledge; Ehsan Jabbarzadeh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-3
Journal Detail:
Title:  Annals of biomedical engineering     Volume:  -     ISSN:  1521-6047     ISO Abbreviation:  Ann Biomed Eng     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0361512     Medline TA:  Ann Biomed Eng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Biomedical Engineering Program, University of South Carolina, Columbia, SC, 29208, USA.
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