期刊
JOURNAL OF BIOMATERIALS APPLICATIONS
卷 32, 期 5, 页码 648-662出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0885328217733849
关键词
Electro-spinning; surface modification; polycaprolactone; polyethylene glycol methyl ether; chitosan; vascular grafts
资金
- National Research Foundation of Korea (NRF) - Ministry of Education [2015R1A6A1A03032522]
- Soonchunhyang University
- National Research Foundation of Korea [2015R1A6A1A03032522] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Recently, natural polymers are frequently comingled with synthetic polymers either by physical or chemical modification to prepare numerous tissue-engineered graft with promising biological function, strength, and stability. The aim of this study was to determine the efficiency for vascular tissue engineering of two distinctly different mats, one that comprised polycaprolactone-polyethylene glycol methyl ether and other that comprised polycaprolactone-chitosan. Nano/microfibrous mats prepared from electro-spinning were characterized for fiber diameter, porosity, wettability, and mechanical strength. Biological efficacy on both biodegradable mats was assessed by rat bone marrow mesenchymal stem cells, and polycaprolactone-polyethylene glycol methyl ether showed feasibility for use as an inner layer by inducing endothelial-specific gene expression and polycaprolactone-chitosan as an outer layer on dual layered without sacrificing tensile strength, small-diameter blood vessels. Therefore, scaffolds fabricated from this research could be potential sources for tissue-engineered vascular graft and could also overcome the well-known drawbacks, such as thrombogenicity and stenosis, in managing vascular disease.
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