Original article

Establish ment and Biocompatibility of a Small Diameter Tubular Scaffold of Electrospun Poly (L-lactide-co-ε-caprolactone)/fibrinogen Blended Fibers

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  • Department of Vascular Surgery, Provincial Hospital Affiliated to Anhui Medical University; Department of Vascular Surgery, Zhongshan Hospital, Fudan University;

Online published: 2020-07-23

Abstract

Objective To fabricate a small diameter tubular scaffold of P (LLA-CL)/fibrinogen by electrospinning fiber technique, to evaluate the biocompatibility of the P (LLA-CL)/fibrinogen scaffold and its feasibility for vascular tissue engineering. Methods A small diameter tubular scaffold was fabricated by co-electrospinning blend of P (LLA-CL) and Fibrinogen. Gross morphology of the scaffold was observed and the 3-dimensional structure was observed by scanning electron microscope (SEM). Biocompatibilities of the tubular scaffold were evaluated in vivo and in vitro by acute hemolysis test, cytotoxicity test, and short-term test of subcutanous implantation. Results A randomly oriented nanofibrous structure with a well interconnected network of pores was observed. The diameter of the fiber at the outer surface was 318 ±56 nm and the average pore diameter was 4.56 ±1.23 μm; Hemolysis rate was 2.87%±0.49%; There was no significant difference of cytotoxicity between the P (LLA-CL)/fibrinogen tubular scaffold and negative control group (P>0.05). After the placement in rat subcutaneous pouches, the scaffolds were gradually biodegraded with little inflammatory reaction. Conclusion The P (LLA-CL)/fibrinogen tubular scaffold can be fabricated by electrospinning fiber technique. It has good biocompatibility and could be potentially used as vascular tissue engineering scaffold material.

Cite this article

FANG Zhengdong,HU Hejie,DONG Zhihui,WANG Xiaotian,SUN Xiaojie,GE Xinbao . Establish ment and Biocompatibility of a Small Diameter Tubular Scaffold of Electrospun Poly (L-lactide-co-ε-caprolactone)/fibrinogen Blended Fibers[J]. Journal of Tissue Engineering and Reconstructive Surgery, 2014 , 10(4) : 207 -210 . DOI: 10.3969/j.issn.1673-0364.2014.04.010

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