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Polymers 2016, 8(2), 13; doi:10.3390/polym8020013

Electrospun Poly(lactide-co-glycolide-co-3(S)-methyl-morpholine-2,5-dione) Nanofibrous Scaffolds for Tissue Engineering

1
School of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Chemical Engineering, Tianjin University, Tianjin 300072, China
2
Tianjin University-Helmholtz-Zentrum Geesthacht, Joint Laboratory for Biomaterials and Regenerative Medicine, Tianjin 300072, China
3
Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China
4
Department of Physiology and Pathophysiology, Logistics University of Chinese People’s Armed Police Force, Tianjin 300162, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Esmaiel Jabbari
Received: 4 November 2015 / Revised: 23 December 2015 / Accepted: 7 January 2016 / Published: 29 January 2016
(This article belongs to the Special Issue Polymers Applied in Tissue Engineering)
View Full-Text   |   Download PDF [3266 KB, uploaded 29 January 2016]   |  

Abstract

Biomimetic scaffolds have been investigated in vascular tissue engineering for many years. Excellent biodegradable materials are desired as temporary scaffolds to support cell growth and disappear gradually with the progress of guided tissue regeneration. In the present paper, a series of biodegradable copolymers were synthesized and used to prepared micro/nanofibrous scaffolds for vascular tissue engineering. Poly(lactide-co-glycolide-co-3(S)-methyl-morpholine-2,5-dione) [P(LA-co-GA-co-MMD)] copolymers with different l-lactide (LA), glycolide (GA), and 3(S)-methyl-2,5-morpholinedione (MMD) contents were synthesized using stannous octoate as a catalyst. Moreover, the P(LA-co-GA-co-MMD) nanofibrous scaffolds were prepared by electrospinning technology. The morphology of scaffolds was analyzed by scanning electron microscopy (SEM), and the results showed that the fibers are smooth, regular, and randomly oriented with diameters of 700 ± 100 nm. The weight loss of scaffolds increased significantly with the increasing content of MMD, indicating good biodegradable property of the scaffolds. In addition, the cytocompatibility of electrospun nanofibrous scaffolds was tested by human umbilical vein endothelial cells. It is demonstrated that the cells could attach and proliferate well on P(LA-co-GA-co-MMD) scaffolds and, consequently, form a cell monolayer fully covering on the scaffold surface. Furthermore, the P(LA-co-GA-co-MMD) scaffolds benefit to excellent cell infiltration after subcutaneous implantation. These results indicated that the P(LA-co-GA-co-MMD) nanofibrous scaffolds could be potential candidates for vascular tissue engineering. View Full-Text
Keywords: electrospinning; nanofibrous scaffolds; vascular tissue engineering; copolymers electrospinning; nanofibrous scaffolds; vascular tissue engineering; copolymers
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MDPI and ACS Style

Feng, Y.; Lu, W.; Ren, X.; Liu, W.; Guo, M.; Ullah, I.; Zhang, W. Electrospun Poly(lactide-co-glycolide-co-3(S)-methyl-morpholine-2,5-dione) Nanofibrous Scaffolds for Tissue Engineering. Polymers 2016, 8, 13.

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